scholarly journals Di-μ-iodido-bis[(dimethyl 2,2′-biquinoline-4,4′-dicarboxylate-κ2 N,N′)copper(I)]

2012 ◽  
Vol 68 (6) ◽  
pp. m756-m757
Author(s):  
Radosław Starosta ◽  
Urszula K. Komarnicka ◽  
Justyna Nagaj ◽  
Kamila Stokowa-Sołtys ◽  
Aleksandra Bykowska

In the centrosymmetric dinuclear title complex, [Cu2I2(C22H16N2O4)2], the CuI atom is coordinated in a distorted tetrahedral geometry by an N,N′-bidentate dimethyl 2,2′-biquinoline-4,4′-dicarboxylate ligand and two symmetry-related I atoms, which act as bridges to a symmetry-related CuI atom. The distance between the CuI atoms within the dinuclear unit is 2.6723 (11) Å.

2014 ◽  
Vol 70 (3) ◽  
pp. m96-m97 ◽  
Author(s):  
Yuya Tsunezumi ◽  
Kouzou Matsumoto ◽  
Shinya Hayami ◽  
Akira Fuyuhiro ◽  
Satoshi Kawata

The title complex, [Co(C21H16N4)2][Co(NCS)4]·CH3OH, consists of one [Co{C(py)4}2]2+complex cation [C(py)4= tetrakis(pyridin-2-yl)methane], one [Co(NCS)4]2−complex anion and a methanol solvent molecule. In the cation, the CoIIatom is coordinated by six N atoms of two C(py)4ligands in a distorted octahedral geometry. In the anion, the CoIIatom is coordinated by the N atoms of four NCS−ligands in a distorted tetrahedral geometry. The methanol molecule is disordered and was modelled over three orientations (occupancies 0.8:0.1:0.1). There are two weak hydrogen-bond-like interactions between the methanol solvent molecule and NCS−ligands of the anion [O...S = 3.283 (3) and 3.170 (2) Å].


IUCrData ◽  
2017 ◽  
Vol 2 (6) ◽  
Author(s):  
C.Vidya Rani ◽  
L. Mitu ◽  
G. Chakkaravarthi ◽  
G. Rajagopal

In the title complex, [Co(C25H35N2O)2], the cobalt(II) atom has a distorted tetrahedral geometry provided by pairs of O and N atoms. The dihedral angles between the benzene rings of the same ligand are 52.39 (9) and 34.96 (9)°. The molecular structure is stabilized by weak intramolecular C—H...O hydrogen bonds. The crystal packing is stabilized mainly by van der Waals forces. The structure contains a solvent-accessible void of 276 Å3which was treated using the SQUEEZE routine fromPLATON[Spek (2015).Acta Cryst.C71, 9–18]. The methyl C atoms of thetert-butyl groups are rotationally disordered, with site occupancies of 0.802 (3) and 0.548 (9) for the major components and 0.198 (3) and 0.452 (9) for the minor components.


2006 ◽  
Vol 62 (4) ◽  
pp. m907-m909
Author(s):  
Wen-Jiang Ao ◽  
Zhao-Hui Li ◽  
Xu-Xu Wang ◽  
Xian-Zhi Fu

In the title complex, [Zn(C8H4O4)(C18H12N2)] n , isophthalate (ipa) acts as a bis-monodentate ligand, forming a one-dimensional helical chain. A significant π–π stacking interaction helps to pack adjacent chains into a molecular zipper. The Zn atom is coordinated by two N and two O atoms in a distorted tetrahedral geometry.


2012 ◽  
Vol 68 (4) ◽  
pp. m520-m520
Author(s):  
Chen-Guang Sun ◽  
Ji-Rong Song

In the title complex, [Zn(C10H8N5)Cl]n, the ZnIIion is four-coordinated by one Cl atom and three N atoms from twoin situ-generated deprotonated 5-(1-methyl-1H-benzimidazol-2-yl-κN3)-1,2,3-triazol-1-ide ligands in a slightly distorted tetrahedral geometry. The ZnIIions are bridged by the ligands, forming a helical chain along [001]. C—H...N and C—H...Cl hydrogen bonds and π–π interactions between the imidazole rings [centroid–centroid distance = 3.4244 (10) Å] assemble the chains into a three-dimensional supramolecular network.


2014 ◽  
Vol 70 (2) ◽  
pp. m269-m269
Author(s):  
Qing-Xuan Meng

In the title complex, [CuCl(C8H8N2OS)(C18H15P)2]·2CH3OH, the CuIion is coordinated by one chloride anion, one S atom from the 5-methoxy-1H-benzimidazole-2(3H)-thione ligand and two P atoms from two triphenylphosphine ligands in a distorted tetrahedral geometry. One of the N-bound H atoms is involved in an intramolecular N—H...Cl hydrogen bond, while another one interacts with the solvent methanol moleculeviaan N—H...O hydrogen bond. Intermolecular O—H...Cl and O—H...O hydrogen bonds link two further complex molecules and four solvent molecules into a centrosymmetric structural unit. The short distance of 3.624 (4) Å between the centroids of the five- and the six-membered rings of two benzimidazole fragments indicates the presence of π–π interactions.


2012 ◽  
Vol 68 (4) ◽  
pp. m367-m367 ◽  
Author(s):  
Teng Ma ◽  
Yuanlu Wang ◽  
Fengliang Wang ◽  
Fei Li

The title complex, [HgCl2(C12H10N4O2)]n, is composed of one HgIIion, one nnh ligand (nnh =N′-nicotinoylnicotinohydrazide) and two coordinated chloride ions. The HgIIion shows a distorted tetrahedral geometry, being surrounded by two N atoms from two nnh ligands and two chloride ions. Due to the bridging role of nnh, the HgIIatoms are connected into polymeric chains along thecaxis, which are further interlinkedviaN—H...O and C—H...Cl hydrogen-bonding interactions, forming a three-dimensional network.


2012 ◽  
Vol 68 (4) ◽  
pp. m430-m430 ◽  
Author(s):  
Jia-Qin Liu ◽  
Yan Zhang ◽  
Ya-Jing Lü ◽  
Zhen-Jü Jiang

In the title complex, [Cu4Cl4(C58H52N2P4)]n, four CuIIatoms are held togetherviatwo doubly bridging and two triply bridging chlorides, forming a stair-like Cu4Cl4core having crystallographically imposed inversion symmetry, while the benzene-1,4-diamine ligand (with a crystallographic inversion center at the centroid) acts in a tetradentate coordination mode, bridging two adjacent Cu4Cl4cores, resulting in a chain along thea-axis direction. One Cu atom has a distorted tetrahedral geometry, coordinated by one P atom, one μ2-Cl and two μ3-Cl atoms, while the second Cu atom adopts a trigonal geometry, coordinated by one P atom, one μ2-Cl and one μ3-Cl atoms.


2014 ◽  
Vol 70 (6) ◽  
pp. m219-m219 ◽  
Author(s):  
Yupa Wattanakanjana ◽  
Arunpatcha Nimthong ◽  
Jedsada Mokakul ◽  
Phattarin Sukpornsawan

In the mononuclear title complex, [CuI(CH3CN)(C18H15P)2], the CuIion is in a distorted tetrahedral geometry, coordinated by two P atoms of two triphenylphosphane ligands, one N atom of an acetonitrile ligand and one iodide anion. The acetonitrile ligand is disordered over two sets of sites in a 0.629 (15): 0.371 (15) ratio. In the crystal, weak C—H...I hydrogen bonds link the molecules, forming a chain along [100].


Author(s):  
Patrycja Paciorek ◽  
Janusz Szklarzewicz ◽  
Wojciech Nitek

In the title complex salt, (C6H6N5)2[ZnCl4], the ZnIIcation is coordinated by four chloride ligands in a distorted tetrahedral geometry. The organic cations and complex anions are connected by N—H...Cl hydrogen bonds, leading to the formation of a three-dimensional network. The title complex salt was synthesized by the reaction of sodium azide, pyridine-2-carbonitrile and ZnCl2in aqueous solution. The salt was characterized by elemental analysis and IR and UV–Vis spectroscopy.


2007 ◽  
Vol 63 (11) ◽  
pp. m2641-m2641 ◽  
Author(s):  
Jun-Lin Bai ◽  
Hong Zhou ◽  
Zhi-Quan Pan ◽  
Xiang-Gao Meng

The title complex, [Cu2(C20H16F2N4O2)(CH4O)2](ClO4)2, was synthesized by cyclo-condensation between ethylenediamine and 2,6-diformyl-4-fluorophenol in the presence of CuII ions. This dinuclear copper complex is centrosymmetric. Both Cu atoms are in a distorted tetrahedral geometry, coordinated by three O atoms and two N atoms. The two Cu atoms are bridged by two endogenous phenol O atoms, with a Cu...Cu distance of 2.8998 (7) Å. In the crystal structure, the perchlorate ions link the macrocycles through inter- and intramolecular hydrogen bonds.


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