Log in

Relevant bibliographies by topics / Ligand bis-pyridyl / Journal articles

To see the other types of publications on this topic, follow the link: Ligand bis-pyridyl.

Journal articles on the topic 'Ligand bis-pyridyl'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ligand bis-pyridyl.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Constable, Edwin C., Catherine E. Housecroft, Markus Neuburger, Sébastien Reymann, and Silvia Schaffner. "4-Substituted 3,6-Bis(2-pyridyl)pyridazines: Silver(I) Complexes of 4-Cyano- and 4-(4-Bromophenyl)-3,6-bis(2-pyridyl)pyridazine and Pseudopolymorphs of 1,3,5-Tris{3,6-bis(2-pyridyl)pyridazin-4-yl}benzene." Australian Journal of Chemistry 61, no. 11 (2008): 847. http://dx.doi.org/10.1071/ch08369.

Full text

Abstract:

Metal:ligand complexes are crystallized from reaction mixtures of equimolar amounts of 4-cyano-3,6-bis(2-pyridyl)pyridazine 2 or 4-(4-bromophenyl)-3,6-bis(2-pyridyl)pyridazine 3 and silver(i) triflate. In [Ag2(2)2]2+, the two ligands adopt a head-to-tail arrangement, while a head-to-head motif is confirmed for the solid state structure of [Ag2(3)2]2+. In solution, one ligand environment is observed in each case. Silver(i) reacts with 1,3,5-tris{3,6-bis(2-pyridyl)pyridazin-4-yl}benzene 4 to give highly insoluble powders. The single crystal structures of the pseudopolymorphs (4)·Et2O and 2(4)·2M

APA, Harvard, Vancouver, ISO, and other styles

2

Browne, Wesley R., Frances Weldon, Adrian Guckian, and Johannes G. Vos. "Modulation of Internuclear Communication in Multinuclear Ruthenium(II) Polypyridyl Complexes." Collection of Czechoslovak Chemical Communications 68, no. 8 (2003): 1467–87. http://dx.doi.org/10.1135/cccc20031467.

Full text

Abstract:

The syntheses and characterisation of a series of mononuclear and dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 1,4-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 2,5-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]thiophene, 2,5-bis-[5-pyrazinyl-1H-1,2,4-triazol-3-yl]thiophene are reported. Electrochemical studies indicate that in these systems, the ground state interaction is critically dependent on the nature of the bridging ligand and its protonation state, with strong and weak interactions being observed for thiop

APA, Harvard, Vancouver, ISO, and other styles

3

Zhou, Wen, and Jian Wang. "A one-dimensional zinc(II) coordination polymer incorporating [1,1′-biphenyl]-4,4′-dicarboxylate andN,N′-bis(pyridin-3-ylmethyl)-[1,1′-biphenyl]-4,4′-dicarboxamide ligands." Acta Crystallographica Section C Crystal Structure Communications 69, no. 5 (2013): 486–90. http://dx.doi.org/10.1107/s0108270113008111.

Full text

Abstract:

In the title compound,catena-poly[[[N,N′-bis(pyridin-3-ylmethyl)-[1,1′-biphenyl]-4,4′-dicarboxamide]chloridozinc(II)]-μ-[1,1′-biphenyl]-4,4′-dicarboxylato-[[N,N′-bis(pyridin-3-ylmethyl)-[1,1′-biphenyl]-4,4′-dicarboxamide]chloridozinc(II)]-μ-[N,N′-bis(pyridin-3-ylmethyl)-[1,1′-biphenyl]-4,4′-dicarboxamide]], [Zn2(C14H8O4)Cl2(C26H22N4O2)3]n, the ZnIIcentre is four-coordinate and approximately tetrahedral, bonding to one carboxylate O atom from a bidentate bridging dianionic [1,1′-biphenyl]-4,4′-dicarboxylate ligand, to two pyridine N atoms from twoN,N′-bis(pyridin-3-ylmethyl)-[1,1′-biphenyl]-4,4

APA, Harvard, Vancouver, ISO, and other styles

4

Kuang, Han-Mao, Xi-Rui Zeng, Yin-Qiu Liu, Qiu-Yan Luo, and Xiao-Niu Fang. "Bis[bis(1-oxo-2-pyridyl)aminato]nickel(II) methanol solvate." Acta Crystallographica Section E Structure Reports Online 62, no. 5 (2006): m1132—m1133. http://dx.doi.org/10.1107/s1600536806014383.

Full text

Abstract:

The title complex, [Ni(C10H8N3O2)2]·CH3OH, is a mononuclear nickel(II) compound containing two di-2-pyridylamine N,N′-dioxide (dpa dioxide) ligands that are nearly perpendicular to each other. The NiII ion of the complex has a distorted octahedral environment with the equatorial plane formed by an N atom from each amine group and two O atoms of one ligand, while the axial positions are occupied by two O atoms of the second ligand. In the solid state, hydrogen-bonding interactions are dominant, with solvent molecules also participating in hydrogen bonding.

APA, Harvard, Vancouver, ISO, and other styles

5

Chen, Chia-Jou, Wei-Te Lee, Ji-Hong Hu, Pradhumna Mahat Chhetri, and Jhy-Der Chen. "Structural diversity and modification in Ni(ii) coordination polymers: a peculiar phenomenon of reversible structural transformation between a 1D ladder and 2D layer." CrystEngComm 22, no. 44 (2020): 7565–74. http://dx.doi.org/10.1039/d0ce01170c.

Full text

Abstract:

The coordination of 5-tert-IPA<sup>2−</sup> ligands, the relaxation of the interdigitated 2D net and the breaking and connecting of the bis-pyridyl-bis-amide ligand demonstrate the peculiar reversible structural transformation between a 1D ladder and 2D layer.

APA, Harvard, Vancouver, ISO, and other styles

6

Mo, Juan, Heng-Yu Qian, Xiang-Dang Du та Wen Chen. "catena-Poly[[[μ-pyridine-2-carbaldehyde azine-κ4 N,N′:N′′,N′′′-bis[(triphenylphosphine-κP)copper(I)]]-μ-1,2-bis(4-pyridyl)ethene-κ2 N:N′] bis(tetrafluoroborate)]". Acta Crystallographica Section E Structure Reports Online 62, № 4 (2006): m726—m727. http://dx.doi.org/10.1107/s160053680600818x.

Full text

Abstract:

In the title complex, {[Cu2(C12H10N2)(C12H10N4)(C18H15P)2](BF4)2} n , the cations form a linear chain, and are bridged by 1,2-bis(4-pyridyl)ethene and pyridine-2-carbaldehyde azine. Each CuI atom is coordinated by one P atom of a PPh3 ligand, two N atoms of a pyridine-2-carbaldehyde azine bridging ligand and one N atom of a bridging 1,2-bis(4-pyridyl)ethene ligand. There is a crystallographic centre of symmetry at the mid-point of the N—N bond.

APA, Harvard, Vancouver, ISO, and other styles

7

Lin, Geng-Min, Chen-Yu Yeh, Gene-Hsiang Lee, and Shie-Ming Peng. "Modified Phenyl Groups on Pyrazin Groups to Synthesized Cobalt String Complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1011. http://dx.doi.org/10.1107/s2053273314089888.

Full text

Abstract:

In the literature, ligand such as oligo-α-pyridylamines and oligo-naphthyridylamine are usually used in the linear metal string complex. In addition to all of the above, another series of ligand is synthesized by mixing two types of ligands. In other words, the type of ligand contains pyridyl and naphthyridyl groups. Permuting the possible permutation, we can find that symmetrical and the shortest ligand is 2,7-bis(α-pyridylamino)-1,8-naphthyridine (H2bpyany). Complexes contain bpyany2-, hexa-nickel or hexa-cobalt, axial ligands such as chloride and thiocyanate, and anions such as hexafluoroph

APA, Harvard, Vancouver, ISO, and other styles

8

Baptayev, B., A. Rysbekova, D. Kalpakov, et al. "Control of Porphyrin Dye Aggregation Using Bis(4-pyridyl)Alkanes in Dye Sensitized Solar Cells." Eurasian Chemico-Technological Journal, no. 1 (February 20, 2019): 63. http://dx.doi.org/10.18321/ectj792.

Full text

Abstract:

The aggregation of sensitizer molecules on the surface of photoanode is a serious issue that can affect the photovoltaic performance of dye-sensitized solar cells. Prevention of dye agglomeration, therefore, is critical. Traditional methods of aggregation control are either synthetically challenging or technologically difficult and expensive. In this article, the use of bis(4-pyridyl)alkanes to control porphyrin dye aggregation is presented. Three bis(4-pyridyl)alkanes – bis(4-pyridyl)butane L4, bis(4-pyridyl)octane L8 and bis(4-pyridyl)decane L10 were synthesized. These bis(4-pyridyl)alkane l

APA, Harvard, Vancouver, ISO, and other styles

9

Lionetti, Davide, Victor W. Day, and James D. Blakemore. "Structural and chemical properties of half-sandwich rhodium complexes supported by the bis(2-pyridyl)methane ligand." Dalton Transactions 48, no. 33 (2019): 12396–406. http://dx.doi.org/10.1039/c9dt01821b.

Full text

Abstract:

The bis(2-pyridyl)methane ligand can support [Cp*Rh] complexes (Cp* = pentamethylcyclopentadienyl) in the Rh(iii) and Rh(ii) oxidation states. Structural and reactivity studies demonstrate significant differences between these complexes and notable analogues bearing the related dimethylbis(2-pyridyl)methane ligand.

APA, Harvard, Vancouver, ISO, and other styles

10

Haris, Nur Shuhaila Haryani, Nafisah Mansor, Mohd Sukeri Mohd Yusof, Christopher J. Sumby, and Maisara Abdul Kadir. "Investigating the Potential of Flexible and Pre-Organized Tetraamide Ligands to Encapsulate Anions in One-Dimensional Coordination Polymers: Synthesis, Spectroscopic Studies and Crystal Structures." Crystals 11, no. 1 (2021): 77. http://dx.doi.org/10.3390/cryst11010077.

Full text

Abstract:

The synthesis of amide-based molecules, possessing pre-organized structures, has received significant attention due to their potential applications as molecular receptors and as components of nanomaterials. In this study, four extended tetraamide ligands incorporating ethylene and propylene spacers, namely 1,2-bis[N,N′-6-(3-pyridylmethylamido)pyridyl-2-carboxyamido]ethane (L1), 1,2-bis[N,N′-6-(4-pyridylmethylamido)pyridyl-2-carboxyamido]ethane (L2), 1,2-bis[N,N′-6-(3-pyridylmethylamido)pyridyl-2-carboxyamido]propane (L3) and 1,2-bis[N,N′-6-(4-pyridylmethylamido)pyridyl-2-carboxyamido]propane (

APA, Harvard, Vancouver, ISO, and other styles

11

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Xiu-Li, Peng Liu, Jian Luan, Hong-Yan Lin, and Chuang Xu. "The Role of the Coordination Modes of a Flexible Bis(pyridylamide) Ligand in the Topology of 2D Copper(II) Complexes." Zeitschrift für Naturforschung B 67, no. 9 (2012): 877–86. http://dx.doi.org/10.5560/znb.2012-0179.

Full text

Abstract:

Two new two-dimensional copper(II) coordination polymers, [Cu(L)(BDC)]_H2O (1) and [Cu2(L)0:5(SIP)(OH)(H2O)] 2H2O (2) [L=N;N0-bis(3-pyridylamide)-1,6-hexane, H2BDC=1,3- benzenedicarboxylic acid, H3SIP=5-sulfoisophthalic acid (3,5-dicarboxybenzenesulfonic acid)], have been synthesized hydrothermally by self-assembly of the flexible bis-pyridyl-bis-amide ligand L and the aromatic polycarboxylate ligands H2BDC or H3SIP. X-Ray diffraction analysis reveals that complex 1 displays a metal-organic coordination layer with a binodal (3,5)-connected {42.67.8}{42.6} topology, in which the L ligands adopt

APA, Harvard, Vancouver, ISO, and other styles

13

Roxburgh, Matthew A. D., Samantha Zaiter, Xina I. B. Hudson, et al. "Structure and Magnetic Studies on a Series of Two-Dimensional Iron(II) Framework Materials with Varying Ligand Characteristics." Australian Journal of Chemistry 70, no. 5 (2017): 623. http://dx.doi.org/10.1071/ch16586.

Full text

Abstract:

Targeting the general (4,4)-grid structural motif, we have prepared seven new coordination polymers in the general family [Fe(NCX)2(L)2]·(guest) (L = bis-pyridyl-type bridging ligands; X = S, Se) as an extension of the well-established spin crossover framework (SCOF) family. In all cases, the (4,4)-grid topology is formed by the bridging of octahedral iron(ii) sites in the equatorial plane by bis-pyridyl ligands of varying length, flexibility, and intermolecular interaction capacity. In particular, the six ligands n-(4-pyridyl)-isonicotinamide (pin), trans-1,2-bis(4′-pyridyl)ethane (tvp), 1,2-

APA, Harvard, Vancouver, ISO, and other styles

14

Lee, Do Nam, та Youngmee Kim. "Structure of poly[diaqua[μ-1,2-bis(pyridin-4-yl)ethane-κ2N:N′]bis(μ3-cyclobutane-1,1-dicarboxylato-κ3O,O′:O′′:O′′′)dimanganese(II)]". Acta Crystallographica Section E Crystallographic Communications 71, № 8 (2015): m150—m151. http://dx.doi.org/10.1107/s2056989015013791.

Full text

Abstract:

In the title compound, [Mn(C6H6O4)(C12H12N2)(H2O)]n, the cyclobutane-1,1-dicarboxylate (cbdc) ligands bridge three MnIIions, forming layers parallel to theacplane. These layers are additionally connected by 1,2-bis(pyridin-4-yl)ethane ligands to form a three-dimensional polymeric framework. An inversion centre is located at the mid-point of the central C—C bond of the 1,2-bis(pyridin-4-yl)ethane ligand. The coordination geometry of the MnIIion is distorted octahedral and is built up by four carboxylate O atoms, one water O atom and a pyridyl N atom. The pyridine ligand and the coordinating wat

APA, Harvard, Vancouver, ISO, and other styles

15

D'Alessandro, Deanna M., F. Richard Keene, Peter J. Steel, and Christopher J. Sumby. "Ruthenium(II) Complexes of Multidentate Ligands Derived from Di(2-pyridyl)methane." Australian Journal of Chemistry 56, no. 7 (2003): 657. http://dx.doi.org/10.1071/ch03019.

Full text

Abstract:

Bis(2,2′-bipyridyl)ruthenium complexes of the model ligand di(2-pyridyl)methane (1) and its multidentate derivatives 1,1,2,2-tetra(2-pyridyl)ethane (2), tetra(2-pyridyl)ethene (3), and hexa(2-pyridyl)[3]radialene (4) have been prepared and characterized by NMR, visible absorption spectroscopy, electrochemical measurements, and, in two cases, by X-ray crystallography. Complexes of (2) and (3) exist as conformationally rigid species with lower than expected symmetry. Ligands (2) and (3) proved surprisingly resistant to forming dinuclear ruthenium complexes. The two diastereoisomeric dinuclear co

APA, Harvard, Vancouver, ISO, and other styles

16

Rood, Jeffrey A., Steven R. Reehl, Kaitlyn A. Jacoby, and Allen Oliver. "Crystal structures of a series of bis(acetylacetonato)oxovanadium(IV) complexes containing N-donor pyridyl ligands." Acta Crystallographica Section E Crystallographic Communications 76, no. 6 (2020): 826–30. http://dx.doi.org/10.1107/s2056989020006246.

Full text

Abstract:

Crystal structures for a series of bis(acetylacetonato)oxovanadium(IV) complexes containing N-donor pyridyl ligands are reported, namely, bis(acetylacetonato-κ2 O,O′)oxido(pyridine-κN)vanadium(IV), [V(C5H7O2)2O(C5H5N)], 1, bis(acetylacetonato-κ2 O,O′)oxido(pyridine-4-carbonitrile-κN)vanadium(IV), [V(C5H7O2)2O(C6H4N2)], 2, and bis(acetylacetonato-κ2 O,O′)(4-methoxypyridine-κN)oxidovanadium(IV), [V(C5H7O2)2O(C6H7NO)], 3, Compounds 1–3 have the formulae VO(C5H7O2)2 L, where L = pyridine (1), 4-cyano-pyridine (2), and 4-methoxypyridine (3). Compound 1 was previously reported [Meicheng et al. (1984

APA, Harvard, Vancouver, ISO, and other styles

17

Macartney, Donal Hugh, and Lauren Jean Warrack. "Ligand substitution reactions of pentacyanoferrate(II) complexes with N-heterocyclic cations in aqueous solution." Canadian Journal of Chemistry 67, no. 11 (1989): 1774–79. http://dx.doi.org/10.1139/v89-274.

Full text

Abstract:

Kinetic and spectroscopic studies have been carried out in aqueous solution on the formation (from Fe(CN)5OH23−) and dissociation of pentacyanoferrate(II) complexes containing 1-(4-pyridyl)pyridinium and the neutral, protonated, and N-methylated forms of 4,4′-bipyridine (BPY), 1,2-bis(4-pyridyl)ethane (BPA), and trans-1,2-bis(4-pyridyl)ethylene (BPE). The pH dependences of the formation kinetics have been analyzed in terms of the specific rate and acid dissociation constants for these ligands. The rate constants (25.0 °C, I = 0.10 M) for the formation of the dinuclear complexes (NC)5FeLFe(CN)5

APA, Harvard, Vancouver, ISO, and other styles

18

Prananto, Yuniar P., David R. Turner, Jinzhen Lu, and Stuart R. Batten. "Solvent-Induced Structural Changes in Complexes of 1,2-Bis(3-(3-pyridyl)pyrazolyl)ethane." Australian Journal of Chemistry 62, no. 2 (2009): 108. http://dx.doi.org/10.1071/ch08483.

Full text

Abstract:

A series of complexes have been obtained using the flexible ditopic ligand 1,2-bis(3-(3-pyridyl)pyrazolyl)ethane (LEt) with M(SCN)2 (M = Co, Fe) and ZnCl2. The ligand is observed to exist in a variety of conformations with rotations around the ethane spacer and around the pyridyl/pyrazole bond. The bridging length of the ligand (i.e., distance between pyridyl nitrogen atoms) varies by 3.5 Å depending on its geometry. Three different cobalt(ii) complexes of the general form [Co(LEt)2(SCN)2]·Solv (where Solv is a variable number/type of non-coordinated solvent) have been structurally characteriz

APA, Harvard, Vancouver, ISO, and other styles

19

Bentiss, Fouad, Moha Outirite, Michel Lagrenée, Mohamed Saadi та Lahcen El Ammari. "Aquabis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole-κ2N2,N3](trifluoromethanesulfonato-κO)copper(II) trifluoromethanesulfonate". Acta Crystallographica Section E Structure Reports Online 68, № 4 (2012): m360—m361. http://dx.doi.org/10.1107/s1600536812008732.

Full text

Abstract:

2,5-Bis(pyridin-2-yl)-1,3,4-thiadiazole (denotedL) has been found to act as a bidentate ligand in the monomeric title complex, [Cu(CF3O3S)(C12H8N4S)2(H2O)](CF3O3S). The complex shows a distorted octahedrally coordinated copper(II) cation which is linked to two thiadiazole ligands, one water molecule and one trifluoromethanesulfonate anion. The second trifluoromethanesulfonate anion does not coordinate the copper(II) cation. Each thiadiazole ligand uses one pyridyl and one thiadiazole N atom for the coordination of copper. The N atom of the second non-coordinating pyridyl substituent is found o

APA, Harvard, Vancouver, ISO, and other styles

20

Harriman, Katie L. M., Alicea A. Leitch, Sebastian A. Stoian, et al. "Ambivalent binding between a radical-based pincer ligand and iron." Dalton Transactions 44, no. 22 (2015): 10516–23. http://dx.doi.org/10.1039/c5dt01374g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Loiseau, Frédérique, Scolastica Serroni, and Sebastiano Campagna. "Electronic Absorption Spectrum and Reduction Behavior of a Multicomponent, Trinuclear Ru(II) Species Containing 2,3-Bis(2'-pyridyl)pyrazine Bridging Ligands and 2,2'-Biquinoline Peripheral Ligands." Collection of Czechoslovak Chemical Communications 68, no. 9 (2003): 1677–86. http://dx.doi.org/10.1135/cccc20031677.

Full text

Abstract:

Electronic absorption spectrum and reduction pattern of a trinuclear Ru(II) species containing 2,3-bis(2'-pyridyl)pyrazine bridging ligands and 2,2'-biquinoline peripheral ligands have been studied and compared with other multinuclear metal complexes of the same family of systems. The structural formula of the compound investigated is [RuCl2{Ru(biq)2(μ-2,3-dpp)}2]4+ (1; biq = 2,2'-biquinoline, 2,3-dpp = 2,3-bis(2'-pyridyl)pyrazine). The electronic absorption spectrum of 1 (in acetonitrile) is dominated by intense spin-allowed ligand-centred bands in the UV region and by moderately intense spin

APA, Harvard, Vancouver, ISO, and other styles

22

Yang, Xichuan, Mikael Kritikos, Björn Åkermark, and Licheng Sun. "Axial ligand exchange reaction on ruthenium phthalocyanines." Journal of Porphyrins and Phthalocyanines 09, no. 04 (2005): 248–55. http://dx.doi.org/10.1142/s1088424605000319.

Full text

Abstract:

Bis(4-methylpyridine)phthalocyaninato ruthenium(II) has been synthesized. It was proved by single-crystal X-ray diffraction that the central Ru(II) atom is bonded to six N atoms in an elongated octahedral configuration, and the axial ligands have a significantly longer Ru - N bond distance, 2.101(4) Å, than the independent pyrrol Ru - N bond, 1.99 Å. Therefore, the axial ligands can be exchanged by other ligands. The ligand exchange reactions with diethyl pyridyl-4-phosphonate and diethyl pyridylmethyl-4-phosphonate were studied in high boiling-point solvents at elevated temperatures, ca 160 °

APA, Harvard, Vancouver, ISO, and other styles

23

Ali, Mohammad Akbar, Paul V. Bernhardt, Chong Lee Kiem, and Aminul Huq Mirza. "Self-Assembly of a Charge-Neutral Molecular Square." Australian Journal of Chemistry 57, no. 5 (2004): 409. http://dx.doi.org/10.1071/ch03319.

Full text

Abstract:

Complexation of cadmium(II) by the ditopic (bis-tridentate) thiocarbazone ligand 1,5-bis(6-methyl-2-pyridyl- methylene)thiocarbonohydrazide, H2L1, results in the self-assembly of a charge-neutral 2 × 2 molecular grid, [Cd4(L1)4], comprising four metals and four ligands in an interlocked cyclic array. The solid-state structure of this tetramer has been established by X-ray crystallography and in solution by 1H NMR spectroscopy. The presence of lower molecular weight oligomers was identified by both NMR and ESI-MS.

APA, Harvard, Vancouver, ISO, and other styles

24

Rezaei Rad, Babak, Dirk Herrmann, Christophe Lescop, and Robert Wolf. "A tetradentate metalloligand: synthesis and coordination behaviour of a 2-pyridyl-substituted cyclobutadiene iron complex." Dalton Trans. 43, no. 11 (2014): 4247–50. http://dx.doi.org/10.1039/c3dt52699b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Nastasi, Francesco, Frédérique Loiseau, Sebastiano Campagna, Elaine A. Medlycott, Marie-Pierre Santoni, and Garry S. Hanan. "Synthesis and photophysical properties of naphthyl-, phenanthryl-, and pyrenyl-appended bis(pyridyl)triazine ligands and their Zn(II) and Ru(II) complexes1." Canadian Journal of Chemistry 87, no. 1 (2009): 254–63. http://dx.doi.org/10.1139/v08-134.

Full text

Abstract:

A family made of four bis(pyridyl)triazine ligands with appended aryl rings, including three fused aromatic rings, have been synthesized, and their corresponding homoleptic Ru(II) and Zn(II) complexes have been prepared and characterized by several means. The free ligands 2,4-di(2-pyridyl)-6-phenyl-1,3,5-triazine (L1); 2,4-di(2-pyridyl)-6-(1-naphthyl)-1,3,5-triazine (L2); 2,4-di(2-pyridyl)-6-(9-phenanthryl)-1,3,5-triazine (L3); and 2,4-di(2-pyridyl)-6-(1-pyrenyl)-1,3,5-triazine (L4) were formed in triazine ring-forming reactions from the reactions of the cyano-functionalized aromatic rings wit

APA, Harvard, Vancouver, ISO, and other styles

26

Haslinger, S., A. C. Lindhorst, J. W. Kück, M. Cokoja, A. Pöthig, and F. E. Kühn. "Isocyanide substitution reactions at the trans labile sites of an iron(ii) N-heterocyclic carbene complex." RSC Advances 5, no. 104 (2015): 85486–93. http://dx.doi.org/10.1039/c5ra18270k.

Full text

Abstract:

A variety of isocyanide-substituted Fe(ii) N-heterocyclic carbene (NHC) complexes has been synthesized, starting from an Fe(ii) NHC complex with an equatorial, tetradentate bis(pyridyl-NHC) ligand (NCCN).

APA, Harvard, Vancouver, ISO, and other styles

27

Plater, M. John, Mark R. St J. Foreman, and Alexandra M. Z. Slawin. "Coordination Networks with 1,3-Bis(4-pyridyl)propane. A Flexible Ligand Exhibiting Supramolecular Isomerism." Journal of Chemical Research 23, no. 2 (1999): 74–75. http://dx.doi.org/10.1177/174751989902300204.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Sedykh, Alexander E., Robin Bissert, Dirk G. Kurth, and Klaus Müller-Buschbaum. "Structural diversity of salts of terpyridine derivatives with europium(III) located in both, cation and anion, in comparison to molecular complexes." Zeitschrift für Kristallographie - Crystalline Materials 235, no. 8-9 (2020): 353–63. http://dx.doi.org/10.1515/zkri-2020-0053.

Full text

Abstract:

AbstractThree salts of the common composition [EuCl2(X-tpy)2][EuCl4(X-tpy)]·nMeCN were obtained from EuCl3·6H2O and the respective organic ligands (X-tpy = 4′-phenyl-2,2′:6′,2″-terpyridine ptpy, 4′-(pyridin-4-yl)-2,2′:6′,2″-terpyridine 4-pytpy, and 4′-(pyridin-3-yl)-2,2′:6′,2″-terpyridine 3-pytpy). These ionic complexes are examples of salts, in which both cation and anion contain Eu3+ with the same organic ligands and chlorine atoms coordinated. As side reaction, acetonitrile transforms into acetamide resulting in the crystallization of the complex [EuCl3(ptpy)(acetamide)] (4). Salts [EuCl2(p

APA, Harvard, Vancouver, ISO, and other styles

29

Titi, Hatem M., Anirban Karmakar, and Israel Goldberg. "Crystalline assemblies of porphyrins with mixed bromophenyl and pyridyl meso-substituents and manifestation of supramolecular chirality induced by inter-porphyrin Br⋯N halogen bonds." Journal of Porphyrins and Phthalocyanines 15, no. 11n12 (2011): 1250–57. http://dx.doi.org/10.1142/s1088424611004166.

Full text

Abstract:

Four new crystalline solids based on the zinc-5,15-bis(4′-bromophenyl)-10,20- bis(4′-pyridyl)porphyrin ( Zn –DBDPyP) and zinc/copper-5,10,15-tris(4′-bromophenyl)-20-(4′-pyridyl)-porphyrin ( Zn/Cu –TBMPyP) platforms as building blocks, have been prepared and structurally analyzed by X-ray diffraction in order to examine whether the Br⋯N halogen bond can be effective in directing the supramolecular assembly of this functionalized porphyrins, in a similar way observed earlier for their iodophenyl-substituted analogs. The zinc ion in the porphyrin core was protected by an external ligand (pyridyl

APA, Harvard, Vancouver, ISO, and other styles

30

Itokazu, Melina Kayoko, André Sarto Polo, and Neyde Yukie Murakami Iha. "Light driven isomerization of coordinated ligand and modulation offac-[Re(CO)3(phen)(trans-bpe)]PF6photoluminescence in rigid media." International Journal of Photoenergy 3, no. 3 (2001): 143–64. http://dx.doi.org/10.1155/s1110662x01000174.

Full text

Abstract:

The excited state reactivity and photophysical properties offac-[Re(CO)3(phen)(L)]PF6(phen = 1,10-phenanthroline, L =trans- orcis-1,2-bis(4-pyridyl)ethylene, bpe) in PMMA (poly(methyl methacrylate)) films have been investigated and compared with those in acetonitrile solution.313 or 365 nm irradiation of the rhenium complex in PMMA leads to UV-vis spectral changes due to thetrans→cisisomerization of the coordinated bpe ligand. Thefac-[Re(CO)3(phen)(cis-bpe)]+product presents a markedly enhanced luminescence due to a lower lying metal-to-ligand charge transfer (MLCT) excited state in thecisisom

APA, Harvard, Vancouver, ISO, and other styles

31

Ji, Baoming, Chunying Xu, Leilei Liu, Guojie Yin, and Chenxia Du. "Construction of Lanthanide–Organic Frameworks from the Flexible Bifunctional Ligand 1,3-Bis(2-cyano-4-pyridyl)propane." Australian Journal of Chemistry 67, no. 6 (2014): 895. http://dx.doi.org/10.1071/ch13630.

Full text

Abstract:

The solvothermal reactions of the bifunctional flexible ligand 1,3-bis(2-cyano-4-pyridyl)propane with lanthanide salts via an in situ ligand transformation reaction afforded four novel isostructural lanthanide metal–organic frameworks, formulated as {(NH4)[Ln(bcpp)2]·2H2O}n (Ln = Eu (1), Sm (2), Nd (3), and Pr (4), H2bcpp = 1,3-bis(2-carboxyl-4-pyridyl)propane). Polymers 1–4 were characterised by elemental analyses, IR spectroscopy, and single-crystal and powder X-ray diffraction. The results reveal that the four polymers are isostructural. In the molecular structures of 1–4, the bifunctional

APA, Harvard, Vancouver, ISO, and other styles

32

Fan, Liming, Weiliu Fan, Bin Li, Xinzheng Liu, Xian Zhao, and Xiutang Zhang. "Syntheses, structures, topologies, and luminescence properties of four coordination polymers based on bifunctional 6-(4-pyridyl)-terephthalic acid and bis(imidazole) bridging linkers." RSC Advances 5, no. 19 (2015): 14897–905. http://dx.doi.org/10.1039/c4ra13501f.

Full text

Abstract:

Four CPs, with the structure ranged from 2D sheet to 3D 3-fold penetrated net, have been designed with the mixed-ligand strategy of bifunctional 6-(4-pyridyl)-terephthalic acid and bis(imidazole) bridging linkers.

APA, Harvard, Vancouver, ISO, and other styles

33

Mahoro, Gilbert Umuhire, Elisa Fresta, Margaux Elie, et al. "Towards rainbow photo/electro-luminescence in copper(i) complexes with the versatile bridged bis-pyridyl ancillary ligand." Dalton Transactions 50, no. 32 (2021): 11049–60. http://dx.doi.org/10.1039/d1dt01689j.

Full text

Abstract:

The synthesis and characterization of a family of copper(i) complexes bearing a bridged bis-pyridyl ancillary ligand is reported, highlighting how the bridge nature impacts the photo- and electro-luminescent behaviours within the family.

APA, Harvard, Vancouver, ISO, and other styles

34

Drazic, Branka, Gordana Popovic, Ratomir Jelic, et al. "Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid." Journal of the Serbian Chemical Society 74, no. 3 (2009): 269–77. http://dx.doi.org/10.2298/jsc0903269d.

Full text

Abstract:

Acid-base equilibria of Zn(II) and Fe(III) complexes with N',N'2-bis- [(1E)-1-(2-pyridyl)ethylidene]ethanedihydrazide (ligand L1) and N',N'2-bis[(1E)- -1-(2-pyridyl)ethylidene]propanedihydrazide (ligand L2), i.e., [Fe(L1)Cl2(H2O)], [Fe(L2)Cl(H2O)]2+, [Zn(L1)(H2O)3]+ and [Zn(L2)(H2O)2]2+, which expressed cytotoxic activity, were investigated in aqueous media. The equilibrium constants were determined potentiometrically at 25?C at a constant ionic strength of 0.10 mol/dm3 (Na2SO4). The results showed that at pH < 8 both the Fe(III) complexes studied here have three, while [Zn(L1)(H2O)3]+ and

APA, Harvard, Vancouver, ISO, and other styles

35

Xin, Ling-Yun, Guang-Zhen Liu, Lu-Fang Ma, Xue Zhang, and Li-Ya Wang. "Structural Diversity and Fluorescence Regulation of Three ZnII Coordination Polymers Assembled from Mixed Ligands Tectons." Australian Journal of Chemistry 68, no. 5 (2015): 758. http://dx.doi.org/10.1071/ch14347.

Full text

Abstract:

By adopting a mixed-ligand strategy, three ZnII coordination polymers were prepared by hydrothermal reactions of zinc(ii) acetate with flexible 1,2-phenylenediacetic acid (H2phda) combining with three nitrogen-rich tectons namely, [Zn2(phda)2(bpo)2]n·2H2O (1), [Zn(phda)(pytz)]n (2), and [Zn(phda)(bib)]n·H2O (3) (where bpo = 2,5-bis(4-pyridyl)-1,3,4-oxadiazole, pytz = 3,5-di(4-pyridyl)-1,2,4-triazole, and bib = 1,4-bis(imidazol-1-yl)benzene). The single-crystal X-ray diffraction patterns reveal that the three compounds contain metal(ii)-carboxylate chains further extended by such nitrogen-rich

APA, Harvard, Vancouver, ISO, and other styles

36

Melle, Philipp, Nathalie Ségaud, and Martin Albrecht. "Ambidentate bonding and electrochemical implications of pincer-type pyridylidene amide ligands in complexes of nickel, cobalt and zinc." Dalton Transactions 49, no. 36 (2020): 12662–73. http://dx.doi.org/10.1039/d0dt02482a.

Full text

Abstract:

Pincer-type tridentate pyridyl bis(pyridylidene amide) (pyPYA<sub>2</sub>) ligand systems were coordinated to the Earth-abundant first row transition metals nickel, cobalt and zinc, revealing ambidentate N,N,N and O,N,O coordination behavior.

APA, Harvard, Vancouver, ISO, and other styles

37

Zappe, Lisa, Sophie Schönfeld, Gerald Hörner, et al. "Spin crossover modulation in a coordination polymer with the redox-active bis-pyridyltetrathiafulvalene (py2TTF) ligand." Chemical Communications 56, no. 72 (2020): 10469–72. http://dx.doi.org/10.1039/d0cc03788e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Hafeli, TA, та FR Keene. "Stabilization of Cobalt(I) by Tripodal π-Acceptor Ligands Py3X (Py=2-Pyridyl; X=N, Ch, COH, P, P=O), and Preliminary Studies on the Reaction of Water and Carbon Dioxide With the Bis(ligand)cobalt(I) Complexes". Australian Journal of Chemistry 41, № 9 (1988): 1379. http://dx.doi.org/10.1071/ch9881379.

Full text

Abstract:

Bis ( ligand )cobalt(III/II) complexes of the tripodal π-acceptor ligands Py3X ( Py = 2-pyridyl; X = N, CH, COH, P, P=O) have been synthesized and characterized. Electrochemical studies in acetonitrile (or propylene carbonate) solution reveal the CoIII/CoII and CoII/CoI redox couples for all complexes on the cyclic voltammetric time scale; coulometry studies show the CoI species for X = CH, P, P=O have long-term stability, while for X = N, COH the analogous complexes may be observed but are not sustained for such long periods (i.e. minutes or hours in the last two cases). Aspects relating to t

APA, Harvard, Vancouver, ISO, and other styles

39

Zhai, Quan-Guo, Shu-Ni Li, Man-Cheng Hu, and Yu-Cheng Jiang. "A three-dimensional hybrid framework based on novel [Co4Mo4] bimetallic oxide clusters with 3,5-bis(3-pyridyl)-1,2,4-triazole ligands." Acta Crystallographica Section C Crystal Structure Communications 65, no. 3 (2009): m128—m130. http://dx.doi.org/10.1107/s0108270109003813.

Full text

Abstract:

In the title organic–inorganic hybrid complex, poly[[[μ-3,5-bis(3-pyridyl)-1,2,4-triazole]tri-μ3-oxido-tetra-μ2-oxido-oxidodicobalt(II)dimolybdenum(VI)] monohydrate], {[Co2Mo2O8(C12H9N5)]·H2O}n, the asymmetric unit is composed of two CoIIcenters, two [MoVIO4] tetrahedral units, one neutral 3,5-bis(3-pyridyl)-1,2,4-triazole (BPT) ligand and one solvent water molecule. The cobalt centers both exhibit octahedral [CoO5N] coordination environments. Four CoIIand four MoVIcenters are linked by μ2-oxide and/or μ3-oxide bridges to give an unprecedented bimetallic octanuclear [Co4Mo4O22N4] cluster, whic

APA, Harvard, Vancouver, ISO, and other styles

40

Barrios, Leoní A., David Aguilà, Olivier Roubeau, Keith S. Murray, and Guillem Aromí. "A Molecular Chain of Four CoII Ions Stabilized by a Tris-Pyridyl/Bis-?-Diketonate Ligand." Australian Journal of Chemistry 62, no. 9 (2009): 1130. http://dx.doi.org/10.1071/ch09183.

Full text

Abstract:

The synthesis and characterization of a tris-pyridyl/bis-β-diketone molecule (H2L) is reported. This compound acts as a hexadentate ligand towards CoII to facilitate the assembly of a tetranuclear molecular chain of closely spaced metals with formula [Co4L2(MeOH)8](NO3)4 (1), which exhibits a very flat [Co4L2]4+ platform, as determined by single-crystal X-ray diffraction crystallography. Complex 1 readily exchanges axial methanol ligands with water molecules. The bulk magnetization of the resulting hydrate, 1a, shows that the metals in the [Co4L2]4+ moiety exhibit spin-orbit coupling and antif

APA, Harvard, Vancouver, ISO, and other styles

41

Irmak, Mustafa, Tobias Lehnert, and Mike M. K. Boysen. "First synthesis of a carbohydrate-derived pyridyl bis(thiazoline) ligand." Tetrahedron Letters 48, no. 44 (2007): 7890–93. http://dx.doi.org/10.1016/j.tetlet.2007.08.101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

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.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

43

Lin, Hong-Yan, Peng Liu, Xiu-Li Wang, Chuang Xu, and Guo-Cheng Liu. "Syntheses, Structures and Electrochemical Properties of Two New Copper(II) Complexes Based on Isomeric Bis(pyridylformyl)piperazine Ligands and Rigid=Flexible Organic Dicarboxylates." Zeitschrift für Naturforschung B 68, no. 2 (2013): 138–46. http://dx.doi.org/10.5560/znb.2013-2291.

Full text

Abstract:

Two new copper(II) complexes, [Cu2(3-bpfp)(2,6-PDA)2(H2O)2] (1) and [Cu(4-bpfp)0:5 (glu)]·H2O (2), have been hydrothermally synthesized by self-assembly of isomeric bis(pyridylformyl)piperazine ligands [3-bpfp=bis(3-pyridylformyl)piperazine, 4-bpfp=bis(4- pyridylformyl)piperazine], rigid pyridine-2,6-dicarboxylic acid (2,6-H2PDA) or flexible glutaric acid (H2glu), and copper(II) chloride. Single-crystal X-ray diffraction analysis reveals that two adjacent CuII ions are connected by the 3-bpfp ligand to build a dinuclear unit in complex 1, in which 2,6-PDA serves as a terminal chelating ligand.

APA, Harvard, Vancouver, ISO, and other styles

44

Zhang, Xiao-Yu, Shu-Man Zhao, Ran Li, et al. "A single-crystal to single-crystal transition from a 7-fold interpenetrated coordination polymer to a non-interpenetrated one by photochemical [2 + 2] polymerization and their sensing properties." Dalton Transactions 50, no. 12 (2021): 4408–14. http://dx.doi.org/10.1039/d0dt04428h.

Full text

Abstract:

Two complexes, namely [Zn(bpeb)(sda)] (1), [Zn(poly-bpeb)<sub>0.5</sub>(sda)] (2), were synthesized by an ligand with an extensively conjugated system, bpeb = 1,4-bis[2-(3-pyridyl) vinyl]-benzene, H<sub>2</sub>sda = sulfonyldibenzoic acid and Zn<sup>2+</sup>.

APA, Harvard, Vancouver, ISO, and other styles

45

Jin, Guoxia, Yuqi Ji, Teng Wang, et al. "Syntheses and characterization of dinuclear and tetranuclear AgI supramolecular complexes generated from symmetric and asymmetric molecular clips containing oxadiazole rings." Acta Crystallographica Section C Structural Chemistry 75, no. 10 (2019): 1327–35. http://dx.doi.org/10.1107/s2053229619011744.

Full text

Abstract:

A new asymmetric ligand, 5-{3-[5-(4-methylphenyl)-1,3,4-oxadiazol-2-yl]phenyl}-2-(pyridin-3-yl)-1,3,4-oxadiazole (L5), which contains two oxadiazole rings, was synthesized and characterized. The assembly of symmetric 2,5-bis(pyridin-3-yl)-1,3,4-oxadiazole (L1) and asymmetric L5 with AgCO2CF3 in solution yielded two novel AgI complexes, namely catena-poly[[di-μ-trifluoroacetato-disilver(I)]-bis[μ-2,5-bis(pyridin-3-yl)-1,3,4-oxadiazole]], [Ag2(C2F3O2)2(C12H8N4O)2] n or [Ag2(μ2-O2CCF3)2(L1)2] n (1), and bis(μ3-5-{3-[5-(4-methylphenyl)-1,3,4-oxadiazol-2-yl]phenyl}-2-(pyridin-3-yl)-1,3,4-oxadiazole

APA, Harvard, Vancouver, ISO, and other styles

46

Balakrishna, Maravanji S., Ramalingam Venkateswaran, and Shaikh M. Mobin. "Mixed-ligand silver(I) complexes containing bis[2-(diphenylphosphino)phenyl]ether and pyridyl ligands." Inorganica Chimica Acta 362, no. 1 (2009): 271–76. http://dx.doi.org/10.1016/j.ica.2008.02.037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Kafentzi, Maria-Chrysanthi, Maylis Orio, Marius Réglier та ін. "Changing the chemical and physical properties of high valent heterobimetallic bis-(μ-oxido) Cu–Ni complexes by ligand effects". Dalton Transactions 45, № 40 (2016): 15994–6000. http://dx.doi.org/10.1039/c6dt02391f.

Full text

Abstract:

Two new heterobimetallic [LNiO<sub>2</sub>Cu(RPY2)]<sup>+</sup> (RPY2 = N-substituted bis 2-pyridyl(ethylamine) ligands with R = indane, 3a or R = Me, 3b) complexes have been spectroscopically trapped at low temperatures.

APA, Harvard, Vancouver, ISO, and other styles

48

Zhong, Yi-Qing, Hui-Qiong Xiao, and Xiao-Yi Yi. "Synthesis, structural characterization and catalysis of ruthenium(ii) complexes based on 2,5-bis(2′-pyridyl)pyrrole ligand." Dalton Transactions 45, no. 45 (2016): 18113–19. http://dx.doi.org/10.1039/c6dt03464k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Clifford, Sarah E., Geoffrey A. Lawrance, Yorck-Michael Neuhold, and Marcel Maeder. "Conjoint Analysis of Kinetic and Equilibrium Data for Mechanistic Elucidation in Polynuclear Complexation Reactions, Exemplified by Metal(II) Helicate Complex Formation." Australian Journal of Chemistry 63, no. 1 (2010): 141. http://dx.doi.org/10.1071/ch09316.

Full text

Abstract:

Combined kinetic and equilibrium studies of the complexation of the ligand N,N′-bis[2-(2-pyridyl)methyl]pyridine-2,6-dicarboxamide with copper(ii) and nickel(ii), examined conjointly employing advanced chemometric methods, provides elucidation of speciation and formation pathways in solution for complexes such as M2L2 and M2L3 helicates, respectively.

APA, Harvard, Vancouver, ISO, and other styles

50

Twaróg, Kamil, Małgorzata Hołyńska, and Andrzej Kochel. "A new photoluminescent coordination polymer constructed with an N-donor ligand having extended coordination capabilities derived from quinoline and pyridine." Acta Crystallographica Section C Structural Chemistry 76, no. 5 (2020): 500–506. http://dx.doi.org/10.1107/s2053229620004593.

Full text

Abstract:

Employment of the organic 2-(pyridin-4-yl)quinoline-4-carboxylic acid ligand with extended coordination capabilities leads to the formation of the one-dimensional copper(II) coordination polymer catena-poly[[diaquacopper(II)]-bis[μ-2-(pyridin-4-yl)quinoline-4-carboxylato]-κ2 N 2:O;κ2 O:N], {[Cu(C15H9N2O2)2(H2O)2]·2H2O} n , under hydrothermal conditions. The ligand, isolated as its hydrochloride salt, namely, 4-(4-carboxyquinolin-2-yl)pyridinium chloride monohydrate, C15H11N2O2 +·Cl−·H2O, reveals a pseudosymmetry element (translation a/2) in its crystal structure. The additional pyridyl N atom,

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!