Academic literature on the topic 'Monodentate and bidentate nitrogen'

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Journal articles on the topic "Monodentate and bidentate nitrogen"

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Kozlevčar, Bojan, Polonca Baškovič, Aleksej Arko, Amalija Golobič, Nives Kitanovski, and Primož Šegedin. "Copper Fixation to Guaiacyl Lignin Units by Nitrogen Donor Ligands." Zeitschrift für Naturforschung B 63, no. 5 (2008): 481–88. http://dx.doi.org/10.1515/znb-2008-0501.

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Several new copper(II) complexes with guaiacyl lignin models vanillin (HL1) [Cu(L1)2(nia)2] (1) (nia = nicotinamide) or vanillic acid (HL2) [Cu(L2)2(nia)2] (2) [Cu2(μ-L2)4(nia)2] (3), and [Cu(L2)2(Hetam)2] (4) (Hetam = ethanolamine) were isolated and characterized. The molecular structure of complex 1 reveals bidentate vanillin (HL1) coordination via the methoxy and the deprotonated hydroxy groups. On the other hand, the vanillic acid (HL2) complexes 2 - 4 show a deprotonated carboxylate group with chelating coordination mode in 2, bridging in 3 and monodentate coordination in 4. The mononucle
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Czylkowska, Agnieszka, Małgorzata Szczesio, Anna Pietrzak, Anita Raducka, and Bartłomiej Rogalewicz. "Novel Coordination Polymer of Cadmium (II) with L-Tryptophan." Materials 13, no. 10 (2020): 2266. http://dx.doi.org/10.3390/ma13102266.

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A new cadmium (II) polymeric coordination compound with tryptophan (Trp) of general formula {[Cd(L-Trp)2(H2O)Cl]∙(Trp)∙(H2O)}n was synthesized. The monocrystals of the investigated complex were obtained using the method of slow evaporation. The crystal and molecular structure was determined. The compound was crystallized in the orthorhombic P212121 space group. The cadmium atom was seven coordinates by two oxygen atoms from one bidentate-chelating carboxylate group of bridging Trp, two oxygen atoms from one bidentate-chelating carboxylate group from a monodentate organic ligand, one oxygen ato
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Maroszová, Jaroslava, Jan Moncol, Zdeňka Padělková, Reijo Sillanpää, Tadeusz Lis, and Marian Koman. "Self-assembled hydrogen-bonded coordination networks in two copper(II) carboxylates with 4-pyridylmethanol." Open Chemistry 9, no. 3 (2011): 453–59. http://dx.doi.org/10.2478/s11532-011-0023-9.

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AbstractThe crystal and molecular structure of [Cu(nif)2(4-PM)2]·CH3OH (1) and [Cu(2-Clbz)2(4-PM)2(H2O)] (2), (where nif = niflumate anion, 2-Clbz = 2-chlorobenzoate anion and 4-PM is the 4-pyridylmethanol), have been determinated by X-ray crystallography. The Cu2+ cation in (1), is coordinated by two pairs of oxygen atoms from asymmetric bidentate niflumate anions and by a pair of pyridine nitrogen atoms from monodentate 4-pyridylmethanol ligands in trans position forming an extremely elongated bipyramid. The Cu2+ cation in (2), is coordinated by a pair of oxygen atoms from monodentate 2-chlo
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Cámpora, Juan, Pilar Palma, Carmen M. Pérez, Antonio Rodríguez-Delgado, Eleuterio Álvarez, and Enrique Gutiérrez-Puebla. "Synthesis and Reactions of Manganese(II) Dialkyl Complexes Containing Monodentate and Bidentate Nitrogen Ligands." Organometallics 29, no. 13 (2010): 2960–70. http://dx.doi.org/10.1021/om100190g.

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Ienco, Andrea, Stefano Midollini, Annabella Orlandini, and Ferdinando Costantino. "Synthesis and Structural Characterization of a Tetranuclear Zinc(II) Complex with P,P'-Diphenylmethylenediphosphinate (pcp) and 2,2'-Bipyridine (2,2'-bipy) Ligands." Zeitschrift für Naturforschung B 62, no. 12 (2007): 1476–80. http://dx.doi.org/10.1515/znb-2007-1202.

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A new tetranuclear complex of zinc(II) with P,P′-diphenylmethylenediphosphinate and 2,2′- bipyridine ligands was synthesized. [(pcp)(2,2′-bipy)Zn (μ3-pcp)Zn (2,2′-bipy)]2 · 6H2O was characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis and X-ray diffractometry. The structure consists of tetranuclear complexes connected through water hydrogen-bonding interactions in corrugated 2D layers. Two crystallographically independent zinc ions are in a distorted five-coordinate environment, being surrounded by three oxygen atoms of phosphinate groups (from two pcp ligands) and
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Dianu, M. L., A. Kriza, N. Stanica, and A. M. Musuc. "Transition metal M(II) complexes with isonicotinoylhydrazone-9-anthraldehyde." Journal of the Serbian Chemical Society 75, no. 11 (2010): 1515–31. http://dx.doi.org/10.2298/jsc091113121d.

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New complexes of isonicotinoylhydrazone-9-anthraldehyde with Cu(II), Co(II) and Ni(II) have been prepared and characterized by analytical and physico-chemical techniques, such as elemental and thermal analyses, magnetic susceptibility and conductivity measurements, and electronic, EPR and IR spectral studies. The infrared spectral studies revealed the bidentate or monodentate nature of the Schiff base in the complexes; the pyridine nitrogen does not participate in the coordination. A tetrahedral geometry is suggested for the nitrate-complexes and an octahedral geometry for the others. Thermal
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Marino, Nadia, María Luisa Calatayud, Marta Orts-Arroyo, et al. "Magnetic Switching in Vapochromic Oxalato-Bridged 2D Copper(II)-Pyrazole Compounds for Biogenic Amine Sensing." Magnetochemistry 7, no. 5 (2021): 65. http://dx.doi.org/10.3390/magnetochemistry7050065.

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A new two-dimensional (2D) coordination polymer of the formula {Cu(ox)(4-Hmpz)·1/3H2O}n (1) (ox = oxalate and 4-Hmpz = 4-methyl-1H-pyrazole) has been prepared, and its structure has been determined by single-crystal X-ray diffraction. It consists of corrugated oxalato-bridged copper(II) neutral layers featuring two alternating bridging modes of the oxalate group within each layer, the symmetric bis-bidentate (μ-κ2O1,O2:κ2O2′,O1′) and the asymmetric bis(bidentate/monodentate) (μ4-κO1:κ2O1,O2:κO2′:κ2O2′,O1′) coordination modes. The three crystallographically independent six-coordinate copper(II)
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Ban, Buu, L. Arnaudet, and R. Bougon. "NMR Investigation of the interaction between monodentate and bidentate nitrogen bases and tungsten(VI) fluoride and oxide fluorides." Journal of Fluorine Chemistry 58, no. 2-3 (1992): 294. http://dx.doi.org/10.1016/s0022-1139(00)80751-4.

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Albrecht, Markus, Klaus Hiibler, and Wolfgang Kaim. "Coordination of the Hetero(N,S)- bidentate Ligand 1-Methyl-2- (methylthiomethyl)-1H-benzimidazole to [(Ph3P)Au)]+ Exclusively through the Imine Nitrogen Donor." Zeitschrift für Naturforschung B 54, no. 12 (1999): 1606–8. http://dx.doi.org/10.1515/znb-1999-1221.

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1-Methyl-2-(methylthiomethyl)-1H- benzimidazole (mmb, N^S) was reacted with Ph3PAuCl/AgPF6 in THF to yield [(Ph3P)Au(mmb)](PF6) which could be crystallographically characterized. The Au+ ion is almost linearly coordinated by the triphenylphosphine P and the imine N atom of a monodentate N^S ligand. There is no gold(I)-sulfur bonding as the distance of ca. 3.02 Å indicates. Similarly, close intermetallic contacts between the gold centers are absent. Both effects are attributed to the positive charge on the metal.
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Durrant, Marcus C., Amanda Francis, David J. Lowe, William E. Newton та Karl Fisher. "Evidence for a dynamic role for homocitrate during nitrogen fixation: the effect of substitution at the α-Lys426 position in MoFe-protein of Azotobacter vinelandii". Biochemical Journal 397, № 2 (2006): 261–70. http://dx.doi.org/10.1042/bj20060102.

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Although it is generally accepted that the active site of nitrogenase is located on the FeMo-cofactor, the exact site(s) of N2 binding and reduction remain the subject of continuing debate, with both molybdenum and iron atoms being suggested as key players. The current consensus favours binding of acetylene and some other non-biologically relevant substrates to the central iron atoms of the FeMo-cofactor [Dos Santos, Igarashi, Lee, Hoffman, Seefeldt and Dean (2005) Acc. Chem. Res. 38, 208–214]. The reduction of N2 is, however, a more demanding process than reduction of these alternative substr
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Dissertations / Theses on the topic "Monodentate and bidentate nitrogen"

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Woods, Rebecca J. "Bidentate nitrogen ligands for olefin polymerisation." Thesis, University of Manchester, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.488051.

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Sutcliffe, V. F. "Synthesis and mechanistic studies on organoplatinum complexes with bidentate heteroaromatic nitrogen-donor ligands." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37869.

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Harding, Michael. "New concepts in asymmetric catalysis." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284768.

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Agbossou, Sénamé. "Ligands aminophosphonites et complexes de metaux des groupes 9 et 10 : syntheses et applications en oligomerisation, telomerisation et carbonatation." Toulouse 3, 1988. http://www.theses.fr/1988TOU30110.

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Preparation et caracterisation d'une serie de comples de palladium, de platine et de rhodium renfermant les ligands dioxa-1,3-phospha-2-aza-6 r-6 phenyl-2-cyclooctane (r=h,phn; r=me,pnme; r=methyl-2allyle, pnallyle)
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Brennan, Nicholas Frederick. "Synthesis and structural studies of N- and P-donor ligands in Chromium(III) complexes." Thesis, 2010. http://hdl.handle.net/2263/28960.

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The fundamental knowledge of Cr(III) chemistry has been enhanced via detailed structural and spectroscopic studies of largely novel compounds that may potentially be active tri- and tetramerisation precursors. The compounds are based on various monodentate and bidentate nitrogen and phosphorus ligands which have been coordinated to [CrCl3 (thf) 3]. The few compounds that have been synthesised previously have in this study been made via novel synthetic routes and incorporate a combination of new and more detailed analysis than was carried out previously. The eight structures determined, in addi
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Chou, Chia-Yin, and 周佳穎. "Effects of Monodentate and Bidentate Ligands on Adsorption Characteristics of Cu-Ion-Imprinted Polymers." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/26vmw4.

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碩士<br>國立交通大學<br>環境工程系所<br>107<br>3-(2-aminoethylamino)propyl]trimethoxysilane (AATPS) and 3-aminopropyltriethoxysilane (APTES) were used as functional monomers to prepare Cu-imprinted-organic-inorganic polymers (IIP) while MEMO and TEOS were used as the organic and inorganic cross-linkers, respectively. Adsorption behaviors of the IIPs at different Cu(II)/amino-groups ratios were examined to investigate the complexation between the bidentate/monodentate ligands and the Cu(II) ions and the resulting imprinting extents in the IIPS. In addition, the keys controlling the selectivity of the IIPs we
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Lin, Chih-Wei, and 林志威. "Synthesis of the Monodentate and Bidentate Alkyl-S-chelating {Fe(NO)2}10 DNICs and their Properties." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/56426051616841394429.

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ZHOU, ZHANG-GUAN, and 周張銓. "Molybdenum carbonyl derivatives of pyrazol-and phenyl-derived nitrogen bidentate." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/00914072666519570427.

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Chiou, Yen-Tsai, and 邱雲才. "Synthesis and Reactions of Copper(Ⅰ) Complexes Containing Nitrogen Bidentate Ligands." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/75447630872106005333.

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Shih, Hsien Chao, and 師憲超. "Syntheses and Reactions of Copper (II) Complexes Containing Nitrogen Bidentate Ligands." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/61615994568587335026.

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Conference papers on the topic "Monodentate and bidentate nitrogen"

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Hennig, C., K. Schmeide, V. Brendler, H. Moll, S. Tsushima, and A. C. Scheinost. "The Structure of Uranyl Sulfate in Aqueous Solution — Monodentate Versus Bidentate Coordination." In X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference. AIP, 2007. http://dx.doi.org/10.1063/1.2644495.

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