scholarly journals trans-Bis(5-carboxy-2-methyl-1H-imidazole-4-carboxylato-κ2N3,O4)copper(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m637-m637 ◽  
Author(s):  
Xin Guo ◽  
Yi Liang Li ◽  
Ju Xian Wang ◽  
Yu Cheng Wang

In the title compound, [Cu(C6H5N2O4)2], the copper(II) atom lies on an inversion centre and is in an N2O2four-coordinate environment with a nearly regular square-planar geometry. An extended network of intramolecular O—H...O and intermolecular N—H...O and C—H...O hydrogen bonds stabilizes the crystal structure.

2009 ◽  
Vol 65 (6) ◽  
pp. m673-m673 ◽  
Author(s):  
Volodimir Bon ◽  
Svitlana Orysyk ◽  
Vasyl Pekhnyo

In the title compound, [PdCl2(C7H9NO)2], the Pd atom is situated on a crystallographic centre of inversion. The coordination environment of the Pd atom shows a slightly distorted square-planar geometry. The crystal structure exhibits weak intermolecular Pd...Cl interactions, with Pd...Cl distances of 3.6912 (6) Å. A chain-like arrangement of molecules realized by intermolecular N—H...Cl hydrogen bonds is observed along [010].


Author(s):  
Sujirat Boonlue ◽  
Anchalee Sirikulkajorn ◽  
Kittipong Chainok

The racemic title compound, [Cu2(C7H8NO2)2Cl2], is composed of dinuclear molecules in which methoxy(pyridin-2-yl)methanolate ligands bridge two symmetry-related CuIIions. Each CuIIion is coordinated in a square-planar geometry by one Cl atom, the N and O atoms of the bidentate ligand and the bridging O atom of the centrosymmetrically related bidentate ligand. The separation between the two CuIIatoms is 3.005 (1) Å. In the crystal, non-classical C—H...O hydrogen bonds, weak π–π stacking [centroid–centroid distance = 4.073 (1) Å] and weak electrostatic Cu...Cl interactions [3.023 (1) Å] link the dinuclear molecules into chains running parallel to thebaxis. These chains are further connected by weak C—H...Cl hydrogen bonds directed approximately along theaaxis, forming a three-dimensional supramolecular network.


2015 ◽  
Vol 71 (5) ◽  
pp. m124-m125
Author(s):  
Jin-Jin Yan ◽  
Chang-Ge Zheng

In the title compound, [Pd(C6H4F)I(C6H16N2)], the PdIIatom is coordinated by two N atoms from theN,N,N′,N′-tetramethylethylenediamine ligand, a C atom of the 4-fluorophenyl group and an iodide ligand in a distorted square-planar geometry, with an average deviation from the least-squares plane through the ligand donor atoms of 0.0159 (2) Å. The angles about the PdIIatom range from 83.35 (16) to 178.59 (11)°. In the crystal, weak C—H...F and C—H...I hydrogen bonds link the molecules into sheets in thebcplane.


2014 ◽  
Vol 70 (11) ◽  
pp. 435-437 ◽  
Author(s):  
Peter Mangwala Kimpende ◽  
Tran Thi Da ◽  
Dinh Nguyen Huu ◽  
Luc Van Meervelt

In the title compound, [Pt(C11H13O2)Cl(C5H11N)]·C2H5OH, the PtIIcation is pentacoordinated in a distorted square-planar geometry. In the crystal, inversion dimers showing C—H...Cl and C—H...π interactions are further stacked in columns along theaaxisviaC—H...π interactions. The ethanol solvate molecule interacts with neighbouring methoxy groups of methyleugenol through O—H...O hydrogen bonds.


2006 ◽  
Vol 61 (8) ◽  
pp. 979-982 ◽  
Author(s):  
Murat Taş ◽  
Hanife Saraçoğlu ◽  
Hümeyra Bati ◽  
Nezihe Çalışkan ◽  
Orhan Büyükgüngör

The molecules of the title compound, [Cu(C11H13N2O2)2], lie across centres of inversion in space group P21/c and are linked by intermolecular N-H···O and C-H···O hydrogen bonds. The central Cu atom has a slightly distorted square-planar coordination comprised of four N atoms. Cu-N bond distances are 1.975(2) and 2.020(2) Å . The interplanar angle between the phenyl and succinimidato ring is 87.34(10)°


2015 ◽  
Vol 71 (10) ◽  
pp. m181-m182
Author(s):  
Peter W. R. Corfield ◽  
Mary Bailey

The title compound, [Au(C18H10F4PS)Cl2], crystallizes as neutral molecules, with the AuIIIatom coordinated by two Cl atoms and by the P and S atoms of the bidentate phosphanyl thiolate ligand, in a slightly distorted square-planar environment. The molecules are linked into centrosymmetric dimersvialong axial Au—Cl bonds of 3.393 (4) Å. This axial Au—Cl distance is longer than is usually seen, although one other example has been given. Dimer formation may explain the unexpectedly low solubility of the compound in common polar solvents. There is also a separate intermolecular Au—F contact of 3.561 (6) Å, but this distance seems too long to be regarded as a bond. Two putative C—H...F hydrogen bonds appear to link the dimers into sheets parallel to (110). There is a short intermolecular F...F contact of 2.695 (10) Å between two dimers related by the twofold axis.


2007 ◽  
Vol 63 (11) ◽  
pp. m2802-m2802 ◽  
Author(s):  
Yong Hou ◽  
Hongrong Zuo ◽  
Qian Huang ◽  
Chunlin Ni

The title compound, (C5H12N)2[Ni(C4N2S2)2], is a new [Ni(mnt)2]2− salt (mnt2− is 1,2-dicyanoethene-1,2-dithiolate) with piperidinium [(PIH)+] cations. The NiII ion lies on an inversion centre and the asymmetric unit contains a (PIH)+ cation and one half of the [Ni(mnt)2]2− anion. The NiII ion exhibits a square-planar coordination geometry. In the crystal structure, weak C—H...N, C—H...S and C—H...Ni hydrogen bonds are observed between the anions and the cations.


2017 ◽  
Vol 73 (8) ◽  
pp. 1172-1174
Author(s):  
Jörg Hübscher ◽  
Wilhelm Seichter ◽  
Edwin Weber

In the title compound, C9H9ClN2O, the ethynylpyrimidine moiety displays an almost planar geometry. In the crystal, molecules are linked by O—H...N and C—Hpyrimidine...O hydrogen bonds, forming a three-dimensional supramolecular architecture.


Author(s):  
Katherine A. Bussey ◽  
Annie R. Cavalier ◽  
Jennifer R. Connell ◽  
Margaret E. Mraz ◽  
Kayode D. Oshin ◽  
...  

In the title compound, [CuCl(C17H19Cl4N3)]ClO4, the CuIIion adopts a distorted square-planar geometry defined by one chloride ligand and the three nitrogen atoms from the bis[(pyridin-2-yl)methyl](3,5,5,5-tetrachloropentyl)amine ligand. The perchlorate counter-ion is disordered over three sets of sites with refined occupancies 0.0634 (17), 0.221 (16) and 0.145 (7). In addition, the hetero-scorpionate arm of the bis[(pyridin-2-yl)methyl](3,5,5,5-tetrachloropentyl)amine ligand is disordered over two sets of sites with refined occupancies 0.839 (2) and 0.161 (2). In the crystal, weak Cu...Cl interactions between symmetry-related molecules create a dimerization with a chloride occupying the apical position of the square-pyramidal geometry typical of many copper(II) chloride hetero-scorpionate complexes.


IUCrData ◽  
2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Kwang Ha

The title compound, [Pd(C14H10N4)2](NO3)2·CH3CN, consists of a cationic PdII complex, two anions and one lattice solvent molecule, all in general positions. In the complex, the PdII cation is four-coordinated in a slightly distorted square-planar geometry defined by the four N atoms of two bidentate 2,3-di-2-pyridylpyrazine ligands. The complex, anions and solvent molecule are linked by weak C—H...O intermolecular hydrogen bonds. In the crystal, the complex molecules are stacked in columns along the a axis.


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