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Journal articles on the topic 'N '-bis(8-quinolyl)pyridine-2'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Meghdadi, Soraia, Saeid Nalchigar, and Hamid Reza Khavasi. "N,N′-Bis(8-quinolyl)pyridine-2,6-dicarboxamide." Acta Crystallographica Section E Structure Reports Online 64, no. 2 (2008): o431. http://dx.doi.org/10.1107/s1600536807055031.

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2

Li, Zhongfang, Suwen Wang, Qian Zhang, and Xianjin Yu. "Bis[N-(8-quinolyl)pyridine-2-carboxamidato]iron(III) perchlorate monohydrate." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): m2781. http://dx.doi.org/10.1107/s1600536807048556.

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The asymmetric unit of the title compound, [Fe(C15H10N3O)2]ClO4·H2O, contains one iron(III) cation chelated by two N-(8-naphthyl)-2-pyridine-2-carboxamidate ligands via six N atoms, exhibiting an octahedral coordination geometry, a perchlorate anion and a water molecule. The Fe—N bond lengths are in the range 1.880 (3)–1.972 (3) Å. Each ligand is planar (r.m.s. deviations = 0.0314 and 0.0282 Å). The dihedral angle between the two ligand planes is 86.55 (1)°. There is a weak intermolecular hydrogen bond between the water and the perchlorate groups.

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3

Meng, Qingguo, Lintong Wang, Yanzhen Liu та Yan Pang. "Bis[N-(8-quinolyl)pyridine-2-carboxamidato-κ3N,N′,N′′]manganese(III) perchlorate monohydrate". Acta Crystallographica Section E Structure Reports Online 64, № 2 (2008): m332. http://dx.doi.org/10.1107/s1600536808000287.

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4

Hiratani, Kazuhisa, and Kazuhiro Taguchi. "2,6-Bis[N-(8-quinolyl)carbamoyl]pyridine as a Highly Selective Extractant for Cu(II)." Bulletin of the Chemical Society of Japan 63, no. 11 (1990): 3331–33. http://dx.doi.org/10.1246/bcsj.63.3331.

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5

Fateme, Pourrezai, Ali Zamani Hassan, Joz-Yarmohammadi Fatemeh, Meghdadi Soraia, and Reza Abedi Mohammad. "A novel samarium(III) nanocomposite carbon paste electrode based on N,N'- bis(8-quinolyl)pyridine-2,6-dicarboxamide as a selectophore." Journal of Indian Chemical Society Vol. 94, Jun 2017 (2017): 579–86. https://doi.org/10.5281/zenodo.5607056.

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Department of Applied Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran <em>E-mail : haszamani@yahoo.com</em> Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran Department of Applied Chemistry, Quchan Branch, Islamic Azad University, Quchan, Iran <em>Manuscript received online 28 January 2017, accepted 09 February 2017</em> A sufficient amounts of N,N<em><strong>'</strong></em>-bis(8-quinolyl)pyridine-2,6-dicarboxamide (QPC) was applied as a new ionophore for fabrication of new nanocomposite carbon paste electrode (CPE) modified with nanosi

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6

da Silva, Luiz Everson, Antonio Carlos Joussef, Sabine Foro та Boris Schmidt. "Bis[4-n-propyl-N-(8-quinolyl)benzenesulfonamidato-κ2 N,N′]zinc(II) dimethylformamide solvate". Acta Crystallographica Section E Structure Reports Online 62, № 5 (2006): m999—m1001. http://dx.doi.org/10.1107/s1600536806012414.

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In the title compound, [Zn(C18H17N2O2S)2]·C3H7NO, the Zn atom is four-coordinated by the N atoms of sulfonamide and quinoline groups. Two intermolecular C—H...O hydrogen bonds connect the molecules into a three-dimensional network.

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7

Jacquet, Inès, Romain Paoli-Lombardo, Caroline Castera-Ducros, Patrice Vanelle, and Nicolas Primas. "2,2′-[2,4-Bis(4-chlorophenyl)cyclobutane-1,3-diyl]bis(8-bromo-6-chloro-3-nitroimidazo[1,2-a]pyridine)." Molbank 2024, no. 4 (2024): M1916. http://dx.doi.org/10.3390/m1916.

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In the context of our ongoing studies on 3-nitroimidazo[1,2-a]pyridine derivatives as potent antileishmanial compounds, we isolated a new unexpected compound from the spontaneous cycloaddition of N-[2-(8-bromo-6-chloro-3-nitroimidazo[1,2-a]pyridin-2-yl)-1-(4-chlorophenyl)ethyl]-4-methylbenzenesulfonamide. The molecular structure was fully characterized by using 1H and 13C NMR, X-ray crystallography, and HRMS.

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8

Trotter, Kasey, Navamoney Arulsamy та Elliott Hulley. "Crystal structure ofcis,fac-{N,N-bis[(pyridin-2-yl)methyl]methylamine-κ3N,N′,N′′}dichlorido(dimethyl sulfoxide-κS)ruthenium(II)". Acta Crystallographica Section E Crystallographic Communications 71, № 9 (2015): m169—m170. http://dx.doi.org/10.1107/s2056989015014875.

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The reaction of dichloridotetrakis(dimethyl sulfoxide)ruthenium(II) withN,N-bis[(pyridin-2-yl)methyl]methylamine affords the title complex, [RuCl2(C13H15N3)(C2H6OS)]. The asymmetric unit contains a well-ordered complex molecule. TheN,N-bis[(pyridin-2-yl)methyl]methylamine (bpma) ligand binds the cation through its two pyridyl N atoms and one aliphatic N atom in a facial manner. The coordination sphere of the low-spind6RuIIis distorted octahedral. The dimethyl sulfoxide (dmso) ligand coordinates to the cation through its S atom and iscisto the aliphatic N atom. The two chloride ligands occupy t

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9

Thabet, H. Kh, Mohd Imran, Mohd Imran, Saleh Alaql, and M. H. M. Helal. "Bis(2-cyanoacetamide) in Heterocyclic Synthesis: Synthesis of Some Bis[2-oxopyridine, 2-iminochromene, Chromeno[3,4-c]pyridine, Benzochromeno[3,4-c]pyridine] Derivatives." Oriental Journal Of Chemistry 40, no. 1 (2024): 65–73. http://dx.doi.org/10.13005/ojc/400108.

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N,N'-(methylenebis(1,4-phenylene))bis-(2-cyanoacetamide) was exploited as a precursor for synthesing some bis (benzylidene 5a-c, pyridines 7, 8, 10a,b, chromene 14, benzochromene 15) derivatives containing diphenyl-methylene spacer via the reaction with each of aromatic aldehydes, pentane-2,4-dione, acetaldehyde/ malononitrile, arylidene-malononitriles, ethyl cinnamates, 2-hydroxybenzaldehyde, and 2-hydroxy-1-naphthaldehyde). Bis(chromeno[3,4-c]pyridines 16&18) were synthesized via Michael's addition of malononitrile or ethyl cyanoacetate to bis(chromene) derivative. The newly prepared com

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10

Averin, Alexei D., Olesya A. Ulanovskaya, Nataliya A. Pleshkova, Anatolii A. Borisenko, and Irina P. Beletskaya. "Pd-Catalyzed Amination of 2,6-Dihalopyridines with Polyamines." Collection of Czechoslovak Chemical Communications 72, no. 5-6 (2007): 785–819. http://dx.doi.org/10.1135/cccc20070785.

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The Pd-catalyzed amination of 2,6-dibromopyridine with various linear polyamines and oxapolyamines was studied. In this way polyazamacrocycles 3 containing one pyridine and one polyamine moiety were synthesized using equimolar amounts of starting compounds. Two alternative approaches were elaborated and compared for synthesis of macrocycles 11 comprising two pyridine and two polyamine fragments: via intermediate formation of Nα,Nω-bis(6-halopyridin-2-yl)polyamines 7, 8 or via 2,6-bis(polyamino)-substituted pyridines 10. A series of N-(6-tert-butoxypyridin-2-yl)-substituted polyamines 12 and Nα

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11

Trischler, Aaron, Kayode Oshin, and Tomislav Pintauer. "Crystal structure of ammonium bis[(pyridin-2-yl)methyl]ammonium dichloride." Acta Crystallographica Section E Crystallographic Communications 71, no. 9 (2015): o692—o693. http://dx.doi.org/10.1107/s2056989015015753.

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In the title molecular salt, C12H14N3+·NH4+·2Cl−, the central, secondary-amine, N atom is protonated. The bis[(pyridin-2-yl)methyl]ammonium and ammonium cations both lie across a twofold rotation axis. The dihedral angles between the planes of the pyridine rings is 68.43 (8)°. In the crystal, N—H...N and N—H...Cl hydrogen bonds link the components of the structure, forming a two-dimensional network parallel to (010). In addition, weak C—H...Cl hydrogen bonds exist within the two-dimensional network.

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12

Feng, Tao, Li-Li Li, Ya-Juan Li, and Wen-Kui Dong. "A half-salamo-based pyridine-containing ligand and its novel NiII complexes including different auxiliary ligands: syntheses, structures, fluorescence properties, DFT calculations and Hirshfeld surface analysis." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 77, no. 1 (2021): 168–81. http://dx.doi.org/10.1107/s2052520620016157.

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Three novel multinuclear NiII complexes, namely, bis{μ-2-methoxy-6-[8-(pyridin-2-yl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl]phenolato}bis[thiocyanatonickel(II)], [Ni2(L)2(NCS)2], 1, bis{μ-2-methoxy-6-[8-(pyridin-2-yl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl]phenolato}bis[azidonickel(II)], [Ni2(L)2(N3)2], 2, and catena-poly[[{2-methoxy-6-[8-(pyridin-2-yl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl]phenolato}nickel(II)]-μ-dicyanamidato], [Ni(L)(dca)] n , 3 {dca is dicyanamide, C2N3, and HL is 2-methoxy-6-[8-(pyridin-2-yl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl]phenol, C16H17N3O4}, with a half-salamo-base

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13

Rowland, John M., Marilyn M. Olmstead, and Pradip K. Mascharak. "Synthesis, structure and properties of bis[N,N-bis(2-pyridylmethyl)amine-N-ethyl-2-pyridine-2-carboxamidecopper(II)] perchlorate." Inorganica Chimica Acta 332, no. 1 (2002): 37–40. http://dx.doi.org/10.1016/s0020-1693(01)00798-8.

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14

Bruno, Giuseppe, Francesco Nicolò, Giuseppe Tresoldi, Dario Drommi та Viviana Mollica Nardo. "{2,6-Bis[(pyridin-2-yl)sulfanylmethyl]pyridine-κ2N,N′}(η3-prop-2-enyl)palladium(II) hexafluorophosphate". Acta Crystallographica Section E Structure Reports Online 70, № 4 (2014): m134—m135. http://dx.doi.org/10.1107/s1600536814003961.

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The title compound, [Pd(C3H5)(C17H15N3S2)]PF6, is built up by a [(η3-allyl)Pd]2+fragment coordinated by a 2,6-bis[(pyridin-2-yl)sulfanylmethyl]pyridine ligand coordinated through the N atoms. One of the S atoms is at a close distance to the metal centeratom [3.2930 (8) Å]. The PdIIatom is tetracoordinated in a strongly distorted square-planar environment mainly determined by the η3-allyl anion in which the central C atom is disordered over two equally occupied positions. The crystal packing is very compact and is characterized by a three-dimensional network of C—H...F interactions between the

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15

Sertçelik, Mustafa, Nagihan Çaylak Delibaş, Hacali Necefoğlu та Tuncer Hökelek. "Diaquabis(N,N-diethylnicotinamide-κN1)bis(4-formylbenzoato-κO1)zinc". Acta Crystallographica Section E Structure Reports Online 68, № 8 (2012): m1067—m1068. http://dx.doi.org/10.1107/s1600536812031200.

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In the title complex, [Zn(C8H5O3)2(C10H14N2O)2(H2O)2], the ZnIIcation is located on an inversion center and is coordinated by two 4-formylbenzoate anions, twoN,N-diethylnicotinamide (DENA) ligands and two water molecules. The four O atoms in the equatorial plane around the ZnIIcation form a slightly distorted square-planar arrangement, while the slightly distorted octahedral coordination is completed by the two N atoms of the DENA ligands in the axial positions. The dihedral angle between the carboxylate group and the adjacent benzene ring is 2.96 (11)°, while the pyridine ring and the benzene

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16

Cati, Dilovan S., and Helen Stoeckli-Evans. "The crystal structures of three pyrazine-2,5-dicarboxamides: three-dimensional supramolecular structures." Acta Crystallographica Section E Crystallographic Communications 73, no. 5 (2017): 729–34. http://dx.doi.org/10.1107/s2056989017005898.

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The complete molecules of the title compounds,N2,N5-bis(pyridin-2-ylmethyl)pyrazine-2,5-dicarboxamide, C18H16N6O2(I), 3,6-dimethyl-N2,N5-bis(pyridin-2-ylmethyl)pyrazine-2,5-dicarboxamide, C20H20N6O2(II), andN2,N5-bis(pyridin-4-ylmethyl)pyrazine-2,5-dicarboxamide, C18H16N6O2(III), are generated by inversion symmetry, with the pyrazine rings being located about centres of inversion. Each molecule has an extended conformation with the pyridine rings inclined to the pyrazine ring by 89.17 (7)° in (I), 75.83 (8)° in (II) and by 82.71 (6)° in (III). In the crystal of (I), molecules are linked by N—H

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17

Syed Abuthahir, S., M. NizamMohideen, V. Viswanathan, Tamilselvan Abiraman, and Sengottuvelan Balasubramanian. "The crystal structures and Hirshfeld surface analysis of N′,N′′′-((1E,1′E)-{[methylenebis(oxy)]bis(6-bromo-3,1-phenylene)}bis(methanylylidene))bis(isonicotinohydrazide) dihydrate and N′,N′′′-((1E,1′E)-{[butane-1,4-diylbis(oxy)]bis(2,1-phenylene)}bis(methanylylidene))bis(isonicotinohydrazide) [+ solvent]." Acta Crystallographica Section E Crystallographic Communications 75, no. 5 (2019): 655–61. http://dx.doi.org/10.1107/s2056989019005048.

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The title compounds, C27H20Br2N6O4·2H2O, (I), and C30H28N6O4·[+ solvent], (II), both crystallize with one half-molecule in the asymmetric unit. The whole molecule of (I) is generated by twofold rotation symmetry, with the twofold rotation axis bisecting the C atom of the –O—CH2—O– bridge. This results in a folded or U-shaped conformation of the molecule. The whole molecule of (II) is generated by inversion symmetry, with the central CH2—CH2 bond of the –O—(CH2)4—O– bridge being located about a center of inversion. This results in a step-like conformation of the molecule. The central C(=O)N—N=C

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18

McKee, Vickie, and Muhammet Kose. "Manganese(II) complexes derived from acyclic ligands having flexible alcohol arms: structural chracterization and SOD and catalase mimetic studies." Acta Crystallographica Section C Structural Chemistry 77, no. 2 (2021): 100–110. http://dx.doi.org/10.1107/s2053229621000395.

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In this work, a series of seven MnII complexes of noncyclic flexible ligands derived from 2,6-diformylpyridine and ethanolamine or alkyl-substituted ethanolamines were prepared and characterized, six structurally by single-crystal X-ray diffraction studies. The complexes are dichlorido{2,2′-[(pyridine-2,6-diyl)bis(nitrilomethanylylidene)]diethanol}manganese(II), [MnCl2(C11H15N3O2)] or [MnCl2(L1)], (2), bis{μ-2,2′-[(pyridine-2,6-diyl)bis(nitrilomethanylylidene)]diethanol}bis[dithiocyanatomanganese(II)], [Mn2(NCS)4(C11H15N3O2)2] or [Mn2(NCS)4(L1)2], (3), chlorido{1,1′-[(pyridine-2,6-diyl)bis(nit

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19

Faizi, Md Serajul Haque, Necmi Dege та Kateryna Goleva. "Crystal structure of di-μ-chlorido-bis(chlorido{N1,N1-diethyl-N4-[(pyridin-2-yl-κN)methylidene]benzene-1,4-diamine-κN4}mercury(II))". Acta Crystallographica Section E Crystallographic Communications 73, № 6 (2017): 809–12. http://dx.doi.org/10.1107/s2056989017005874.

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The title dinuclear mercury(II) complex, [Hg2Cl4(C16H19N3)2], synthesized from the pyridine-derived Schiff base (E)-N1,N1-diethyl-N4-[(pyridin-2-yl)methylidene]benzene-1,4-diamine (DPMBD), has inversion symmetry. The five-coordinated HgIIatoms have distorted square-pyramidal stereochemistry comprising two N-atom donors from bidentate chelate BPMBD ligands and three Cl-atom donors, two bridging and one monodentate. The dihedral angle between the benzene and the pyridine rings in the BPMBD ligand is 7.55 (4)°. In the crystal, the dinuclear molecules are linked by weak C—H...Cl hydrogen bonds, fo

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20

Boyle, Jenna, Catherine Breakfield, Leah Buck, Catherine McMahon, and Dominic C. Babbini. "Crystal structure of (1E,1′E)-1,1′-(pyridine-2,6-diyl)bis[N-(2,3,4,5,6-pentafluorophenyl)ethan-1-imine]." Acta Crystallographica Section E Crystallographic Communications 73, no. 7 (2017): 954–56. http://dx.doi.org/10.1107/s2056989017008040.

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The title compound, C21H9F10N3, represents a potential redox non-innocent pyridine diimine ligand system. It consists of a central pyridine ring with two pentafluorophenyl substituted imine groups in positions 2 and 6. The whole molecule is generated by mirror symmetry, the mirror bisecting the N andpara-C atom of the pyridine ring. The perfluorophenyl ring is inclined to the pyridine ring by 73.67 (8)°. In the crystal, molecules stack along theaaxis, but there are no significant intermolecular interactions present.

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21

Mirzaei, M., H. Eshtiagh-Hosseini, E. Eydizadeh, Z. Yousefi, and K. Molčanov. "Bis(9-aminoacridinium) bis(pyridine-2,6-dicarboxylato)zincate(II) trihydrate." Acta Crystallographica Section E Structure Reports Online 68, no. 4 (2012): m355—m356. http://dx.doi.org/10.1107/s1600536812005764.

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In the title compound, (C13H11N2)2[Zn(C7H3NO4)2]·3H2O, the ZnIIion is six-coordinated with the N4O2donor set being a distorted octahedron through two almost perpendicular (r.m.s. deviation of ligand atoms from the mean plane is 0.057 Å) tridentate pyridine-2,6-dicarboxylate ligands [dihedral angle between the ligands = 86.06 (4)°]. The charge is compensated by two 9-aminoacridinium cations protonated on the ring N atom. A variety of intermolecular contacts, such as ion–ion, N—H...O and O—H...O hydrogen bonds, and π–π stacking [centroid–centroid distances = 3.4907 (9)–4.1128 (8) Å], between cat

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22

Sedykh, Alexander E., Dirk G. Kurth, and Klaus Müller-Buschbaum. "The crystal structure of the triclinic polymorph of 1,4-bis([2,2′:6′,2′′-terpyridin]-4′-yl)benzene." Acta Crystallographica Section E Crystallographic Communications 75, no. 12 (2019): 1947–51. http://dx.doi.org/10.1107/s2056989019015810.

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The title triclinic polymorph (Form I) of 1,4-bis([2,2′:6′,2′′-terpyridin]-4′-yl)benzene, C36H24N6, was formed in the presence of the Lewis acid yttrium trichloride in an attempt to obtain a coordination compound. The crystal structure of the orthorhombic polymorph (Form II), has been described previously [Fernandes et al. (2010). Acta Cryst. E66, o3241–o3242]. The asymmetric unit of Form I consists of half a molecule, the whole molecule being generated by inversion symmetry with the central benzene ring being located about a crystallographic centre of symmetry. The side pyridine rings of the

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23

Black, DS, GB Deacon, GL Edwards, and BM Gatehouse. "Organomercury Compounds. XXXI. Preparations and 199Hg N.M.R. Spectra of Organomercury Derivatives of 2-Phenylpyridine, Benzo[h]quinoline, 1-Phenylpyrazole and 3,4,5-Trimethyl-1-phenylpyrazole, and the X-Ray Crystal Structure of Bis[2-(pyridin-2'-yl)phenyl]mercury." Australian Journal of Chemistry 46, no. 9 (1993): 1323. http://dx.doi.org/10.1071/ch9931323.

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2-(Pyridin-2'-yl) phenylmercuric acetate has been prepared by mercuration of 2-phenylpyridine. Symmetrization of the corresponding chloride by alkaline sodium stannite gave bis [2-(pyridin-2'-yl)phenyl]mercury, which was also prepared from 2-(2'-aminophenyl)pyridine by the diazo method and treatment of the initial product with copper powder and aqueous ammonia. Mercuration of benzo [h] quinoline and 3,4,5-trimethyl-1-phenylpyrazole with mercuric acetate followed by treatment with lithium chloride yielded benzo [h]quinolin-10-ylmercuric chloride and 2-(3',4',5'-trimethylpyrazol-1'-yl) phenylmer

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24

Yoshida, Masaki, Mio Kondo, Masaya Okamura, et al. "Fe, Ru, and Os complexes with the same molecular framework: comparison of structures, properties and catalytic activities." Faraday Discussions 198 (2017): 181–96. http://dx.doi.org/10.1039/c6fd00227g.

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A series of group 8 metal complexes with the same molecular framework, [M(PY5Me2)L]n+ (M = Fe, Ru, and Os; PY5Me<sub>2</sub> = 2,6-bis[1,1-bis(2-pyridyl)ethyl]pyridine; L = monodentate ligand), were successfully synthesized and structurally characterized. The spectroscopic and electrochemical properties as well as the catalytic activity for water oxidation of these complexes were investigated.

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25

Perdih, Franc. "Copper(II) bis(4,4,4-trifluoro-1-phenylbutane-1,3-dionate) complexes with pyridin-2-one, 3-hydroxypyridine and 3-hydroxypyridin-2-one ligands: molecular structures and hydrogen-bonded networks." Acta Crystallographica Section C Structural Chemistry 73, no. 11 (2017): 960–67. http://dx.doi.org/10.1107/s2053229617014875.

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Copper(II) bis(4,4,4-trifluoro-1-phenylbutane-1,3-dionate) complexes with pyridin-2-one (pyon), 3-hydroxypyridine (hpy) and 3-hydroxypyridin-2-one (hpyon) were prepared and the solid-state structures of (pyridin-2-one-κO)bis(4,4,4-trifluoro-3-oxo-1-phenylbutan-1-olato-κ2 O,O′)copper(II), [Cu(C10H6F3O2)2(C5H5NO)] or [Cu(tfpb-κ2 O,O′)2(pyon-κO)], (I), bis(pyridin-3-ol-κO)bis(4,4,4-trifluoro-3-oxo-1-phenylbutan-1-olato-κ2 O,O′)copper(II), [Cu(C10H6F3O2)2(C5H5NO)2] or [Cu(tfpb-κ2 O,O′)2(hpy-κO)2], (II), and bis(3-hydroxypyridin-2-one-κO)bis(4,4,4-trifluoro-3-oxo-1-phenylbutan-1-olato-κ2 O,O′)coppe

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26

Warad, Ismail, Afaf Alruwaili, Saud I. Al-Resayes, M. Iqbal Choudhary, and Sammer Yousuf. "5,5-Dimethyl-2,2-bis(pyridin-2-yl)-1,3-diazinane." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1786. http://dx.doi.org/10.1107/s1600536812021629.

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In the molecule of the title compound, C16H20N4, the 1,3-diazinane ring adopts a chair conformation and the dihedral angle formed by the pyridine rings is 78.64 (8)°. The molecular conformation is stabilized by an intramolecular C—H...N hydrogen bond, forming an S(6) ring motif. In the crystal, centrosymmetrically related molecules are linked into dimers by pairs of N—H...N hydrogen bonds, generating rings of R 2 2(10) graph-set motif.

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27

Marlin, Dana S., Marilyn M. Olmstead, and Pradip K. Mascharak. "Bis-(N,N′-bis[2-(2-pyridyl)methyl]pyridine-2,6-dicarboxamido)dicopper(II): spontaneous formation of a short double stranded helicate." Inorganica Chimica Acta 323, no. 1-2 (2001): 1–4. http://dx.doi.org/10.1016/s0020-1693(01)00558-8.

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28

Kashiwagi, Yukiyasu, Koji Kubono, and Toshiyuki Tamai. "Crystal structure of 7,7′-[(pyridin-2-yl)methylene]bis(5-chloroquinolin-8-ol)." Acta Crystallographica Section E Crystallographic Communications 76, no. 8 (2020): 1271–74. http://dx.doi.org/10.1107/s2056989020009317.

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In the title compound, C24H15Cl2N3O2, one quinoline ring system is essentially planar and the other is slightly bent. An intramolecular O—H...N hydrogen bond involving the hydroxy group and a pyridine N atom forms an S(5) ring motif. In the crystal, two molecules are associated into an inversion dimer with two R 2 2(7) ring motifs through intermolecular O—H...N and O—H...O hydrogen bonds. The dimers are further linked by an intermolecular C—H...O hydrogen bond and four C—H...π interactions, forming a two-dimensional network parallel to (001).

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29

Kubono, Koji, Kimiko Kado, Yukiyasu Kashiwagi, Keita Tani, and Kunihiko Yokoi. "Crystal structure of 7-{[bis(pyridin-2-ylmethyl)amino]methyl}-5-chloroquinolin-8-ol." Acta Crystallographica Section E Crystallographic Communications 71, no. 12 (2015): 1545–47. http://dx.doi.org/10.1107/s2056989015022410.

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In the title compound, C22H19ClN4O, the quinolinol moiety is almost planar [r.m.s. deviation = 0.012 Å]. There is an intramolecular O—H...N hydrogen bond involving the hydroxy group and a pyridine N atom forming anS(9) ring motif. The dihedral angles between the planes of the quinolinol moiety and the pyridine rings are 44.15 (9) and 36.85 (9)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds forming inversion dimers with anR44(10) ring motif. The dimers are linked by C—H...N hydrogen bonds, forming ribbons along [01-1]. The ribbons are linked by C—H...π and π–π interactions [int

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30

Amr, Abd El-Galil E., Ashraf M. Mohamed, and Alhussein A. Ibrahim. "Synthesis of Some New Chiral Tricyclic and Macrocyclic Pyridine Derivatives as Antimicrobial Agents." Zeitschrift für Naturforschung B 58, no. 9 (2003): 861–68. http://dx.doi.org/10.1515/znb-2003-0908.

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A series of chiral macrocyclic pyridines has been prepared starting from N2,N2-(pyridine- 2,6-dicarbonyl)diamino acid hydrazides (2a-c) and N,N-bis-(1-carboxy-2-substituted)-2,6- diaminocarbonyl)pyridines (3a,b). The coupling of (2a-c) with 2,6-pyridine dicarbonyldichloride (4) gave the compounds (5a-c). Compounds 2a-c were coupled with 2,6-diacetylpyridine (6) to yield compounds (7a-c) and with heterocyclic aldehydes (8) or (10) to give the compounds (9a-c) or (11a-c). In addition, the hydrazides (2a-c) were reacted with diformylcalix[4]arene 12 to afford the macrocyclic calix[4]arene hydrazo

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31

Hosseini, Hajar, and Mohammad Bayat. "Synthesis of 5-amino-N′-(9H-fluoren-9-ylidene)-8-nitro-7-aryl-1,2,3,7-tetrahydroimidazo[1,2-a]pyridine-6-carbohydrazide derivatives based on heterocyclic ketene aminals." RSC Advances 8, no. 72 (2018): 41218–25. http://dx.doi.org/10.1039/c8ra09308c.

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A new class of tetrahydroimidazo[1,2-a]pyridine derivatives has been successfully prepared via a five-component domino reaction using cyanoacetohydrazide, 9-fluorenone, aromatic aldehydes, 1,1-bis(methylthio)-2-nitroethene and ethylenediamine in ethanol at reflux.

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32

Faizi, Md Serajul Haque, and Yuliia Parashchenko. "Crystal structure of 2-amino-1,3-dibromo-6-oxo-5,6-dihydropyrido[1,2-a]quinoxalin-11-ium bromide monohydrate." Acta Crystallographica Section E Crystallographic Communications 71, no. 11 (2015): 1332–35. http://dx.doi.org/10.1107/s2056989015018253.

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In the title hydrated salt, C12H8Br2N3O+·Br−·H2O, which was synthesized by the reaction of the pyridine derivative Schiff baseN1,N4-bis(pyridine-2-ylmethylene)benzene-1,4-diamine with bromine, the asymmetric unit contains a 2-amino-1,3-dibromo-6-oxo-5,6-dihydropyrido[1,2-a]quinoxalin-11-ium cation, with a protonated pyridine moiety, a bromide anion and a water molecule of solvation. The cation is non-planar with the dibromo-substituted benzene ring, forming dihedral angles of 24.3 (4) and 11.5 (4)° with the fused pyridine and pyrazine ring moieties, respectively. In the crystal, the cations ar

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33

Olmstead, Marilyn M. "Bond length of perchlorate at different temperatures: X-ray and neutron comparison." Acta Crystallographica Section C Structural Chemistry 76, no. 2 (2020): 159–63. http://dx.doi.org/10.1107/s2053229620000388.

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The averages (average deviations from the mean are given in square brackets) of uncorrected Cl—O bond distances in a perchlorate anion from an X-ray diffraction analysis of (N-{2-[bis(pyridin-2-ylmethyl)amino]ethyl}pyridine-2-carboxamidato)(nitric oxide)manganese perchlorate acetonitrile disolvate, [Mn(C20H20N5O)(NO)]ClO4·2CH3CN or [Mn(PaPy3)(NO)]ClO4·2CH3CN, decrease from 1.447 [4] Å at 10 K to 1.428 [4] Å at 170 K. The 10 K value is close to the neutron value (1.441 [1] Å) at 18 K. Comparisons are made with a second X-ray study at 30 K [1.444 (8) Å] and to libration-corrected, density functi

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34

Moon, Dohyun, Keon Sang Ryoo та Jong-Ha Choi. "Bis[trans-difluoridotetrakis(pyridine-κN)chromium(III)] sodium tetrachloridozincate perchlorate from synchrotron data". Acta Crystallographica Section E Structure Reports Online 70, № 7 (2014): m280. http://dx.doi.org/10.1107/s1600536814014408.

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The title salt, Na[CrF2(C5H5N)4]2[ZnCl4]ClO4, consists of two cationic CrIIIcomplexes, an Na+cation, one [ZnCl4]2−anion and one ClO4−anion. The CrIIIatoms are coordinated by four pyridine (py) N atoms and two F atoms in atransarrangement, displaying a distorted octahedral geometry. The mean Cr—N(py) and Cr—F bond lengths are 2.086 (8) and 1.864 (14) Å, respectively. The [ZnCl4]2−anion has a distorted tetrahedral geometry. The most notable feature of the crystal packing is the formation of weak pyridine–perchlorate C—H...O hydrogen bonds, resulting in supramolecular chains along theb-axis direc

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35

Lyčka, Antonín, Jaroslav Holeček, and Karel Handlíř. "119Sn, 13C and 1H NMR studies of aryloxy- and arylthio(1-butyl)stannanes." Collection of Czechoslovak Chemical Communications 54, no. 9 (1989): 2386–98. http://dx.doi.org/10.1135/cccc19892386.

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Two series of compounds have been prepared and studied by means of 119Sn, 13C, and 1H NMR spectroscopy, viz. aryloxy- and N-heteroaryloxytris(1-butyl)stannanes and their thio analogues Bu3SnER, and diaryloxy- and di(N-heteroaryloxy)bis(1-butyl)stannanes and their thio analogues Bu2Sn(ER)2, where E means oxygen or sulfur, Bu is 1-butyl, R = phenyl, 1-naphthyl, or 8-quinolyl. On the basis of mutual comparison of NMR spectral parameters of both series of organotin compounds and their comparison with NMR spectral parameters of analogous, purely organic compounds CH3ER it is possible to discuss the

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36

Aşkın, Gülçin Şefiye, Hacali Necefoğlu, Safiye Özkaya, Nefise Dilek та Tuncer Hökelek. "Crystal structure of tetrakis(μ-2,4,6-trimethylbenzoato-κ2O:O′)bis[(nicotinamide-κN1)copper(II)]". Acta Crystallographica Section E Crystallographic Communications 71, № 8 (2015): 989–92. http://dx.doi.org/10.1107/s2056989015013882.

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In the title binuclear CuIIcomplex, [Cu2(C10H11O2)4(C6H6N2O)2], the two CuIIcations [Cu...Cu = 2.5990 (5) Å] are bridged by four 2,4,6-trimethylbenzoate (TMB) anions. The four nearest O atoms around each CuIIcation form distorted square-planar arrangements and the distorted square-pyramidal coordinations are completed by the pyridine N atoms of nicotinamide molecules at distances of 2.164 (2) and 2.165 (2) Å, respectively. The CuIIcations are displaced by −0.2045 (3) and 0.2029 (3) Å from the corresponding planes formed by the nearest four O atoms. In the molecule, the dihedral angles between

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37

Kang, Soo Kyung, Jeongkyu Woo, Ju Hee Han, et al. "Platinum (II) Complexes Based on Tetradentate Pyridine-Containing Ligands for Phosphorescent Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6683–87. http://dx.doi.org/10.1166/jnn.2020.18774.

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In this study, we designed and synthesized two phosphorescent emitting materials based on tetradentate pyridine-containing ligands. Their photophysical properties were examined for OLEDs and multilayer devices using these materials were fabricated in the following sequence; ITO (180 nm)/4,4′,4″-Tris[2-naphthyl(phenyl)amino]triphenylamine (2-TNATA) (30 nm)/N,N′-di(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl)4,4′-diamine (NPB) (20 nm)/Tris(4-carbazoyl-9-ylphenyl)amine (TCTA) (10 nm)/4,4′-Bis(N-carbazolyl)-1,1′-biphenyl(CBP): 5, 8, 15% Platinum (II) complexes (20 nm)/1,3,5-Tris(1-Phenyl-1H-benzimidaz

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38

Sugiyarto, KH, DC Craig, AD Rae, and HA Goodwin. "Structural and Electronic Properties of Iron(II) Complexes of 2-(1,2,4-Triazol-3-yl)pyridine and Substituted Derivatives." Australian Journal of Chemistry 48, no. 1 (1995): 35. http://dx.doi.org/10.1071/ch9950035.

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Iron(II) and nickel(II) tris(ligand) complexes of 2-(triazol-3-yl)pyridine and the substituted derivatives 2-(1(N)-methyltriazol-3-yl)pyridine and -(1,5-dimethyltriazol-3-yl)pyridine have been prepared. Coordination of the dimethyl -substituted ligand via N(4) of the triazolyl moieties is confirmed by structure determination of [FeL3] [BF4]2, which has the mer configuration. Tris (2-(1,5-dimethyltriazol-3-yl)pyridine)iron(II) bis ( tetrafluoroborate ): orthorhombic, space group Pbca, a 11.568(3), b 19.442(4), c 30.551(8) Ǻ, Z 8. The methyl substituents appear to have only a minor influence on

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39

Sugiyarto, KH, DC Craig, AD Rae, and HA Goodwin. "Structural, Magnetic and Mössbauer Spectral Studies of Salts of Bis[2,6-bis(pyrazol-3-yl)pyridine]iron(II)—a Spin Crossover System." Australian Journal of Chemistry 47, no. 5 (1994): 869. http://dx.doi.org/10.1071/ch9940869.

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The magnetic and Mossbauer spectral properties of hydrated and anhydrous complex salts [Fe( bpp )2] X2, where bpp = [2,6-bis(pyrazol-3-yl)pyridine] and X = PF6, BF4, Br, I, NO3, are indicative of a temperature-induced singlet (1A1) ↔ quintet (5T2) transition in the complex cation. The nature of the transition depends on the anion and the degree of hydration. The transition is displaced to lower temperatures in the anhydrous species and for the hydrated is only partial above room temperature. The transition in the hydrated hexafluorophosphate salt occurs in two steps, and that in the anhydrous

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40

Chatturgoon, Teshica, та Matthew P. Akerman. "X-ray and DFT-calculated structures of bis[N-(quinolin-8-yl)benzamidato-κ2N,N′]copper(II)". Acta Crystallographica Section C Structural Chemistry 72, № 3 (2016): 234–38. http://dx.doi.org/10.1107/s2053229616003120.

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The application of transition metal chelates as chemotherapeutic agents has the advantage that they can be used as a scaffold around which ligands with DNA recognition elements can be anchored. The facile substitution of these components allows for the DNA recognition and binding properties of the metal chelates to be tuned. Copper is a particularly interesting choice for the development of novel metallodrugs as it is an endogenous metal and is therefore less toxic than other transition metals. The title compound, [Cu(C16H11N2O)2], was synthesized by reactingN-(quinolin-8-yl)benzamide and the

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41

Inah, Bassey Enyi, Ayi Anyama Ayi та Amit Adhikary. "Crystal structure of a chloride-bridged copper(II) dimer: piperazine-1,4-dium bis(di-μ-chlorido-bis[(4-carboxypyridine-2-carboxylato-κ2N,O2)chloridocuprate(II)]". Acta Crystallographica Section E Crystallographic Communications 73, № 2 (2017): 246–49. http://dx.doi.org/10.1107/s2056989017001013.

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Crystals of a new dimeric chloride-bridged cuprate(II) derived from pyridine-2,4-dicarboxylic acid were obtained solvothermally in the presence of piperazine and hydrochloric acid. The crystal structure determination of the title salt, (C4H12N2)[Cu2(C7H4NO4)2Cl4], revealed one of the carboxyl groups of the original pyridine-2,4-dicarboxylic acid ligand to be protonated, whereas the other is deprotonated and binds together with the pyridine N atom to the CuIIatom. The coordination environment of the CuIIatom is distorted square-pyramidal. One of the chloride ligands bridges two metal cations to

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42

Chakrabarty, Mithun, Aziz Ahmed, and R. A. Lal. "Synthesis, Characterization, and Structural Assessment of Ni(II) Complexes Derived from Bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone." International Journal of Inorganic Chemistry 2015 (December 31, 2015): 1–11. http://dx.doi.org/10.1155/2015/121895.

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The monometallic nickel(II) complexes [Ni(H2nsh)(A)2]·nH2O (where A = water (H2O), n=0 (1); pyridine (py), n=2 (2); 2-picoline(2-pic), n=0 (3); 3-picoline(3-pic), n=2 (4); and 4-picoline(4-pic), n=0 (5)) and homobimetallic nickel(II) complexes [Ni2(nsh)(A)4]·nH2O (where A = water (H2O), n=1 (6); pyridine (py), n=4 (7); 2-picoline(2-pic), n=4 (8); 3-picoline(3-pic), n=4 (9); and 4-picoline(4-pic), n=4 (10), resp.) have been synthesized in methanol from bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone (H4nsh). The complexes have been characterized by elemental analyses, molar conductance, mag

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43

Fun, Hoong-Kun, Chin Wei Ooi, S. Samshuddin, B. Narayana, and B. K. Sarojini. "[2,6-Bis(biphenyl-4-yl)-4-hydroxy-4-(pyridin-2-yl)cyclohexane-1,3-diyl]bis[(pyridin-2-yl)methanone]–butan-2-one (1/1)." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1633—o1634. http://dx.doi.org/10.1107/s1600536812019241.

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In the title solvate, C47H37N3O3·C4H8O, the cyclohexane ring adopts a chair conformation and the plane through its near coplanar atoms forms dihedral angles of 82.58 (7), 89.27 (7), 60.30 (8), 54.54 (7) and 72.03 (7)°, respectively, with the three pyridine rings and the two attached benzene rings. The rings of the biphenyl units are twisted from each other, making dihedral angles of 35.27 (7) and 45.41 (7)°. All the rings are in equatorial orientations in the cyclohexane ring, except for the C=O-bonded pyridine ring in position 1, which is axial. Intramolecular O—H...N and C—H...O hydrogen bon

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44

Pandey, Deepanjali, Shahid S. Narvi, Gopal K. Mehrotra та Raymond J. Butcher. "Diaquabis(nicotinamide-κN1)bis(thiocyanato-κN)nickel(II)". Acta Crystallographica Section E Structure Reports Online 70, № 5 (2014): m183. http://dx.doi.org/10.1107/s1600536814006771.

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In the title complex, [Ni(NCS)2(C6H6N2O)2(H2O)2], the NiIIion is located on an inversion center and is coordinated in a distorted octahedral environment by two N atoms from two nicotinamide ligands and two water molecules in the equatorial plane, and two N atoms from two thiocyanate anions in the axial positions, all acting as monodentate ligands. In the crystal, weak N—H...S hydrogen bonds between the amino groups and the thiocyanate anions form anR42(8) motif. The complex molecules are linked by O—H...O, O—H...S, and N—H...S hydrogen bonds into a three-dimensional supramolecular structure. W

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45

Maringgele, Walter, Anton Meller, Sven Dielkus, and Regine Herbst-Irmer. "Reaktionen von Pyridin-Basen mit Na/K-Legierung und Diorganylaminodifluorboranen / Reactions of Pyridine-Bases with Na/K-Alloy and Diorganylaminodifluoroboranes." Zeitschrift für Naturforschung B 48, no. 5 (1993): 561–70. http://dx.doi.org/10.1515/znb-1993-0504.

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Lutidines react with Na/K alloy and diorganylaminodifluoroboranes in n-hexane. The products formed depend upon the position of the methyl groups. While from 3,4-lutidine (C) the bis(lutidinyl)aminoboranes 2 - 5 are obtained, the 2,4-, 2,5-, and 3,5-lutidines (F, G, H) give the 11 a, 1 lb-dihydro-[1,3,2]-diazoborolo-[5,l-b;3,4-b']-dilutidines 11-17. 4-Picoline reacts analogously to give 10. Pyridine (A) and collidine (B) give adducts with borane. From 2,3-lutidine (D), the 1,4-dihydro-l,4-bis(fluoraminoboryl)-2,3-lutidine 8 is obtained. 1H, 11B, 13C, 19F, 29Si, 15N NMR and MS data are given. Fo

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46

Lai, Pui-Mun, and Sie-Tiong Ha. "Synthesis of Heterocyclic Pyridine-Based Chalcones with Dimeric Structure." Chemistry & Chemical Technology 16, no. 1 (2022): 1–6. http://dx.doi.org/10.23939/chcht16.01.001.

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Three new heterocyclic chalcones containing pyridine moiety were synthesized and their chemical structures were determined via IR, 1H NMR and 13C NMR spectroscopy. General name of these compounds are α,ω-bis{3-(pyridin-3-yl)-1-(phenyl-4-oxy)prop-2-en-1-one}alkanes. The chalcones are dimers having a symmetrical structure and they can be differed by the alkyl spacer length (CnH2n, where n = 8, 10 or 12). Differential scanning calorimetry (DSC) technique was employed to study their phase transition behaviors. DSC thermograms displayed direct isotropization and recrystallization during heating and

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47

Hökelek, Tuncer, Safiye Özkaya та Hacali Necefoğlu. "Crystal structure and Hirshfeld surface analysis of diaquabis(N,N-diethylnicotinamide-κN 1)bis(2,4,6-trimethylbenzoato-κO)manganese(II)". Acta Crystallographica Section E Crystallographic Communications 74, № 4 (2018): 422–27. http://dx.doi.org/10.1107/s2056989018003377.

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In the title centrosymmetric complex, [Mn(C10H11O2)2(C10H14N2O)2(H2O)2], the MnII cation is located on an inversion centre. The four O atoms form a slightly distorted square-planar arrangement around the MnII cation, and the distorted octahedral coordination is completed by two pyridine N atoms at distances of 2.3289 (15) Å. The dihedral angle between the planar carboxylate group and the adjacent benzene ring is 87.73 (16)°, while the benzene and pyridine rings are oriented at a dihedral angle of 43.03 (8)°. In the crystal, the water molecules are involved in both intramolecular (to the non-co

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48

You, Qi, Yu Cui, Guo Xin Sun та Yu Lan Yang. "Synthesis and Crystal Structure of Bis(L-α-N-(2-Pyridylmethy)phenylalaninato-N, N', O)-Zinc(II) Trihydrate". Advanced Materials Research 233-235 (травень 2011): 2460–63. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.2460.

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N-(2-pyridylmethyl)-L-phenylalanine methyl ester was synthesized in our laboratory，and the title compound was synthesized by the reaction of N-(2-pyridylmethyl)-L-phenylalanine methyl ester and Zinc acetate dehydrate. Bis(L-α-N-(2-pyridylmethy)phenylalaninato-N, N', O)-Zinc(II) trihydrate was prepared and structurally characterized by X-ray diffraction. It crystallizes in orthorhombic, space group P21212 with a= 15.0928 (8), b = 16.4209 (6), c = 5.9930 (3) Å, V = 1485.29 (12) Å3, Z = 2, Mr= 630.00, Dx = 1.409 g/cm3, μ = 0.88 mm-1, F(000) = 660, Rint = 0.0205, R = 0.028 and wR = 0.059 for 2943

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49

Feng, Rui, Yan Yang, Zheng Lu, Fan-Yi Lu та Feng-Mei Nie. "Crystal structure of (2,6-pyridinedicarboxylato-κ3O,N,O')[2,6-bis(benzimidazol- 2-yl)pyridine-κ3N,N',N'']copper(II)— methanol (1:1), C27H20CuN6O5". Zeitschrift für Kristallographie - New Crystal Structures 230, № 3 (2015): 201–2. http://dx.doi.org/10.1515/ncrs-2014-9093.

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Abstract C27H20CuN6O5, triclinic, P 1̅ (no. 2), a = 10.4231(9) Å, b = 11.8744(11) Å, c = 13.5630(8) Å, ɑ = 96.829(6)°, β = 110.187(7)°, γ = 106.805(8)°, V = 1463.0 Å3, Z = 2, Rgt(F) = 0.0507, wRref(F2) = 0.1312, T = 105 K.

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50

Peloquin, Andrew J., Cynthia A. Corley, Sonya K. Adas, Gary J. Balaich, and Scott T. Iacono. "Crystal structures and Hirshfeld surface analysis of a series of 4-O-arylperfluoropyridines." Acta Crystallographica Section E Crystallographic Communications 75, no. 8 (2019): 1102–7. http://dx.doi.org/10.1107/s2056989019009344.

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Five new crystal structures of perfluoropyridine substituted in the 4-position with phenoxy, 4-bromophenoxy, naphthalen-2-yloxy, 6-bromonaphthalen-2-yloxy, and 4,4′-biphenoxy are reported, viz. 2,3,5,6-tetrafluoro-4-phenoxypyridine, C11H5F4NO (I), 4-(4-bromophenoxy)-2,3,5,6-tetrafluoropyridine, C11H4BrF4NO (II), 2,3,5,6-tetrafluoro-4-[(naphthalen-2-yl)oxy]pyridine, C15H7F4NO (III), 4-[(6-bromonaphthalen-2-yl)oxy]-2,3,5,6-tetrafluoropyridine, C15H6BrF4NO (IV), and 2,2′-bis[(perfluoropyridin-4-yl)oxy]-1,1′-biphenyl, C22H8F8N2O2 (V). The dihedral angles between the aromatic ring systems in I–IV a

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