Diaquabis(5-carboxy-2-methyl-1H-imidazole-4-carboxylato-κ2 N 3,O 4)cadmium(II)

2007 ◽  
Vol 63 (3) ◽  
pp. m753-m755 ◽  
Author(s):  
Xu-Liang Nie ◽  
Hui-Liang Wen ◽  
Zi-Sheng Wu ◽  
Da-Bo Liu ◽  
Chong-Bo Liu

In the title compound, [Cd(C6H7N2O5)2], the Cd atom lies on an inversion center and has a slightly distorted octahedral geometry. The equatorial plane contains two bidentate 5-carboxy-2-methyl-1H-imidazole-4-carboxylate monoanionic ligands. Two coordinated water molecules occupy the axial sites. Intermolecular N—H...O hydrogen bonds link the molecules into chains, which are further connected by intermolecular O—H...O hydrogen bonds, resulting in a three-dimensional supramolecular framework.

2013 ◽  
Vol 69 (2) ◽  
pp. m89-m89 ◽  
Author(s):  
Xiao-Hui Deng ◽  
Qi-Jun Nie ◽  
Feng-Juan Zhu

In the title compound, [Ni(C6H12N4O3)2](NO3)2·4H2O, the NiIIcation is located on an inversion center and isN,O,O′-chelated by two nitrilotris(acetamide) molecules in a distorted octahedral geometry. The complex cations, nitrate anions and lattice water molecules are connected by O—H...O and N—H...O hydrogen bonds, forming a three-dimensional supramolecular structure.


2013 ◽  
Vol 69 (12) ◽  
pp. m649-m650
Author(s):  
Thameur Sahbani ◽  
Wajda Smirani Sta ◽  
Mohamed Rzaigui

In the centrosymmetric title compound, [Co(C4H11N2)2(H2O)4](SO4)2·2H2O, the CoIIatom is coordinated in a distorted octahedral geometry by four water O atoms and two piperazinium N atoms. These four water O atoms define an equatorial plane with a maximum deviation of 0.0384 (1) Å while the two piperazinium N atoms complete the octahedron in the axial positions. Neighboring complex molecules and sulfate anions are connected through an extensive network of N—H...O and O—H...O hydrogen bonds, which link the different chemical species into layers in theabplane. Additional Owater—H...O hydrogen bonds involving the non-coordinating water molecules and C—H...O interactions connect these layers into a three-dimensional supramolecular structure.


2017 ◽  
Vol 73 (12) ◽  
pp. 1977-1980
Author(s):  
Volodymyr M. Hiiuk ◽  
Diana D. Barakhty ◽  
Sergiu Shova ◽  
Ruslan A. Polunin ◽  
Il'ya A. Gural'skiy

In the title polymeric complex, {[Fe(C12H10N2)2(H2O)4](CH3C6H4SO3)2·2CH3OH}n, the FeIIcation, located on an inversion centre, is coordinated by four water molecules in the equatorial positions and two 1,2-bis(pyridin-4-yl)ethene molecules in the axial positions. This results in a distorted octahedral geometry for the [N2O4] coordination polyhedron. The 1,2-bis(pyridin-4-yl)ethene molecules bridge the FeIIcations, forming polymeric chains running along thea-axis direction. Stabilization of the crystal structure is provided by O—H...O hydrogen bonds; these are formed by coordinated water molecules as donors towards the O atoms of the methanol molecules and tosylate anions as acceptors of protons, leading to the formation of a three-dimensional supramolecular network. Weak C—H...O hydrogen bonds are also observed in the crystal.


2012 ◽  
Vol 68 (8) ◽  
pp. m209-m212 ◽  
Author(s):  
Jiang-Hong Fu ◽  
Yu-Ling Wang ◽  
Ying Chen ◽  
Chang-Hui Hu ◽  
Li Tang

The title compound, [CuNa(C4H3O7S)(C10H8N2)(H2O)3]n, consists of one CuIIcation, one NaIcation, one 2-sulfonatobutanedioate trianion (SSC3−), one 2,2′-bipyridyl (bpy) ligand and three coordinated water molecules as the building unit. The coordination of the CuIIcation is composed of two pyridyl N atoms, one water O atom and two carboxylate O atoms in a distorted square-pyramidal coordination geometry with an axial elongation. The NaIcation is six-coordinated by three water molecules and three carboxylate O atoms from three SSC3−ligands in a distorted octahedral geometry. Two SSC3−ligands link two CuIIcations to form a Cu2(SSC)2(bpy)2macrocyclic unit lying across an inversion centre, which is further linked by NaIcationsviaNa—O bonds to give a one-dimensional chain. Interchain hydrogen bonds link these chains to form a two-dimensional layer, which is further extended into a three-dimensional supramolecular framework through π–π stacking interactions. The thermal stability of the title compound has also been investigated.


2012 ◽  
Vol 68 (4) ◽  
pp. m413-m414 ◽  
Author(s):  
Xin Wang ◽  
Shi-Wei Yan ◽  
Suo-Cheng Chang ◽  
Yan-Chen Liang ◽  
Fu-Tian Zhang

In the title compound, [Mn(C10H7N6)2(H2O)4]·2H2O, the complex unit comprises an Mn2+ion, coordinated by two imidazole N atoms fromcis-related monodentate 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four water molecules, together with two water molecules of solvation. The Mn2+ion lies on a twofold rotation axis and has a slightly distorted octahedral geometry. The molecules are connected by O—H...N and O—H...O hydrogen bonds involving both coordinated and solvent water molecules, generating a three-dimensional structure. Two C atoms of the imidazole ring of the ligand are each disordered over two sites with occupancy factors of 0.75 and 0.25.


2009 ◽  
Vol 65 (6) ◽  
pp. m633-m633 ◽  
Author(s):  
Jian-Hong Bi

In the title compound, [Co(C10H12N2O)2(H2O)2](NO3)2·2H2O, the CoIIion, located on an inversion center, istrans-coordinated by twoN,O-bidentate chelating (E)-3-(dimethylamino)-1-(2-pyridyl)prop-2-en-1-one ligands and by two water molecules in a slightly distorted octahedral geometry. Intermolecular O—H...O hydrogen bonds link the cations, anions and water molecules into layers parallel to theacplane. The crystal packing also exhibits weak intermolecular C—H...O hydrogen bonds.


2014 ◽  
Vol 70 (5) ◽  
pp. m169-m169
Author(s):  
Dan Yang ◽  
Fei-Lin Yang

In the title hydrated double salt, 4,4′-(ethene-1,2-diyl)dipyridin-1-ium hexaaquairon(II) bis(sulfate) monohydrate, (C12H12N2)[Fe(H2O)6](SO4)2·H2O, the FeIIcation is coordinated by six water molecules in a slightly distorted octahedral geometry; the two pyridine rings of the 4,4′-(ethene-1,2-diyl)dipyridin-1-ium cation are twisted to each other by a dihedral angle of 11.84 (10)°. In the crystal, the cations, sulfate anions and water molecules of crystallization are linked by O—H...O, N—H...O and weak C—H...O hydrogen bonds, forming a three-dimensional supramolecular network.


2012 ◽  
Vol 68 (8) ◽  
pp. m1088-m1088
Author(s):  
Kou-Lin Zhang ◽  
Ting-Ting Qiu ◽  
Seik Weng Ng

The ZnIIatom in the title polymeric compound, {[Zn(C8H6NO4)2(H2O)2]·2H2O}n, lies on a center of inversion and is coordinated by two amine N atoms and two carboxylate O atoms from two 3-amino-5-carboxybenzoate anions along with two water molecules in a distorted octahedral geometry. The bridging nature of the anion generates a layer motif parallel to (100). Hydrogen bonds of the N—H...O and O—H...O types exist in the structure. One H atom of the coordinated water molecule and one H atom of the solvent water molecule are each disordered over two positions in a 1:1 ratio.


2013 ◽  
Vol 69 (12) ◽  
pp. m640-m641 ◽  
Author(s):  
Congcong Shang ◽  
Laure Vendier ◽  
Pierre Sutra ◽  
Alain Igau

In the cation of the title complex, [Ru(C31H32N3P2)(C10H8N2)2](PF6)(Br)2·2CH2Cl2·H2O, the ruthenium ion is coordinated in a distorted octahedral geometry by two 2,2′-bipyridine (bpy) ligands and a chelating cationicN-diphenylphosphino-1,3,4,6,7,8-hexahydro-2-pyrimido[1,2-a]pyrimidine [(PPh2)2-hpp] ligand. The tricationic charge of the complex is balanced by two bromide and one hexafluoridophosphate counter-anions. The compound crystallized with two molecules of dichloromethane (one of which is equally disordered about a Cl atom) and a water molecule. In the crystal, one of the Br anions bridges two water moleculesviaO—H...Br hydrogen bonds, forming a centrosymmetric diamond-shapedR42(8) motif. The cation and anions and the solvent molecules are linkedviaC—H...F, C—H...Br, C—H...Cl and C—H...O hydrogen bonds, forming a three-dimensional network.


2014 ◽  
Vol 70 (8) ◽  
pp. m296-m297 ◽  
Author(s):  
Leila Ben Haj Hassen ◽  
Khaireddine Ezzayani ◽  
Yoann Rousselin ◽  
Habib Nasri

In the title compound, [Fe(C44H24Cl4N4)(H2O)2](SO3CF3)·C8H8O3·2H2O, the FeIIIcation is chelated by the four N atoms of the deprotonated tetrakis(4-chlorotetraphenyl)porphyrin (TClPP) and further coordinated by two water molecules in a distorted octahedral geometry. In the crystal, the cations, anions, 4-hydroxy-3-methoxybenzaldehyde and water molecules of crystallization are linked by classical O—H...O hydrogen bonds and weak C—H...O and C—H...Cl hydrogen bonds into a three-dimensional supramolecular architecture. The crystal packing is further stabilized by weak C—H...π interactions involving pyrrole and benzene rings. π–π stacking between parallel benzene rings of adjacent 4-hydroxy-3-methoxybenzaldehyde molecules is also observed, the centroid–centroid distance being 3.8003 (13) Å. The three F atoms of the anion are disordered over two sets of sites, with a refined occupancy ratio 0.527 (12):0.473 (12). The O atom of one water molecule of crystallization is also disordered over two positions in an occupancy ratio of 0.68 (5):0.32 (5).


Sign in / Sign up

Export Citation Format

Share Document