catena-Poly[[[aquacopper(II)]-μ-2-(hydroxyphosphonato)acetato] dihydrate]

2007 ◽  
Vol 63 (11) ◽  
pp. m2646-m2647 ◽  
Author(s):  
Jing Li ◽  
Dapeng Dong ◽  
Yanyu Zhu ◽  
Zhengang Sun ◽  
Hui Chen

The title compound, [Cu{HO3PCH(OH)CO2}(H2O)]·2H2O, was prepared by a hydrothermal reaction. The distorted square-pyramidal coordination geometry of copper(II) is built up of one phosphonate O atom, one hydroxy O atom, two carboxylate O atoms and one water molecule. In the crystal structure, a number of O—H...O hydrogen bonds involving the hydroxy groups, carboxylate O atoms, phosphonate O atoms, and uncoordinated and coordinated water molecules are found.

2020 ◽  
Vol 76 (10) ◽  
pp. 1645-1648
Author(s):  
Bhawani Sigdel Regmi ◽  
Allen Apblett ◽  
Douglas Powell

The asymmetric unit of the title compound, 2,4,6-triamino-1,3,5-triazin-1-ium cyanoacetate monohydrate, C3H7N6 +·NCCH2COO−·H2O, consists of a melaminium cation, a cyanoacetate anion and a water molecule, which are connected to each other via N—H...O and O—H...O hydrogen bonds, generating an eight-membered ring. In the crystal, the melaminium cations are connected by two pairs of N—H...N hydrogen bonds, forming tapes along [110]. These tapes develop a three-dimensional network through N—H...O, O—H...O, N—H...N and C—H...O hydrogen bonds between the cations, anions and water molecules.


2018 ◽  
Vol 74 (12) ◽  
pp. 1751-1754
Author(s):  
Alexander Yu. Mitrofanov ◽  
Yoann Rousselin

In the title compound, [Cu2(OH)2{C12H7N2(PO3C2H5)}2(H2O)2]·7H2O, two Cu2+cations are bridged by two hydroxide groups, forming a centrosymmetric binuclear complex. Each Cu2+cation is further coordinated by the N atoms of a bidentate ethyl (1,10-phenanthrolin-3-yl)phosphonate anion and a water molecule in a square-pyramidal geometry. In the crystal, a network of O—H...O hydrogen bonds involving the P(O)(O−)(OEt) groups, bridging hydroxyl groups, coordinated and uncoordinated water molecules generates a three-dimensional supramolecular structure. The ethyl group exhibits disorder and was modelled over three sites with occupancies of 0.455, 0.384 and 0.161.


2006 ◽  
Vol 62 (4) ◽  
pp. m738-m740 ◽  
Author(s):  
Gui-Ying Dong ◽  
Guang-Hua Cui ◽  
Jin Lin

In the title compound, [Er2(C4H4O4)3(H2O)2] n , the asymmetric unit consists of two ErIII cations, three succinate anions and two coordinated water molecules. Both ErIII ions are in a tricapped trigonal–prismatic coordination environment. The Er atoms are bridged into a three-dimensional framework by succinate anions, which exhibit anti and gauche conformations with different coordination modes. The crystal structure is stabilized by O—H...O hydrogen bonds [O...O = 2.715 (8)–2.936 (8) Å].


2012 ◽  
Vol 68 (6) ◽  
pp. m845-m845
Author(s):  
Jia-Jia Li ◽  
Wei-Min Zhu

In the polymeric title compound, {[Ag(C8H10N4S4)]ClO4·1.5H2O} n , the AgI atom has a slightly distorted trigonal-planar coordination geometry provided by three N-atom donors from the thiadiazole rings of three symmetry-related 2,2′-[butane-1,4-diylbis(sulfanediyl)]bis(1,3,4-thiadiazole) ligands. Centrosymmetrically related AgI atoms are bridged by the N–N fragments of rings, forming six-membered dinuclear metallacycles, which are further linked by the alkyl spacers of the thiadiazole ligands into a layer network extending parallel to (0-21). The crystal structure is stabilized by intermolecular O—H...O hydrogen bonds. The O atoms of the perchlorate anion and one water molecule are disordered over two sets of sites with refined occupancy ratios of 0.640 (6):0.360 (6) and 0.663 (11):0.337 (11), respectively. The second water molecule shows half-occupancy.


2007 ◽  
Vol 63 (11) ◽  
pp. m2640-m2640 ◽  
Author(s):  
Xiu-Ling Li ◽  
Zai-Sheng Lu ◽  
De-Zhong Niu

In the crystal structure of the title compound, (C6H6NO2)2[Fe(NCS)5(H2O)]·2C6H5NO2, the iron complex lies on a mirror plane; the six-coordinate FeIII ion, the coordinated water molecule and three of the five isothiocyanate ligands are located on this plane. The crystal structure is triple-layered. The pyridinium-4-carboxylate (ina) molecules and the protonated 4-carboxypyridinium (inaH+) cations interact with each other through N—H...O and O—H...O hydrogen bonds, leading to the formation of a layer perpendicular to the b axis. Pairs of these layers sandwich another layer of {[Fe(NCS)5(H2O)]2−} n anions with which they interact via electrostatic attraction and O—H...O hydrogen bonds, resulting in sheets of triple layers also perpendicular to the b axis.


2006 ◽  
Vol 62 (4) ◽  
pp. m728-m730
Author(s):  
Yang-Jun Ding ◽  
Yu-Xi Sun ◽  
Nian-Wei Zhang

The title compound, [Ni(C2H5NO2)2(H2O)], is a mononuclear nickel(II) complex. The NiII atom is five-coordinated by two N atoms and two O atoms from two glycinate ligands in basal plane positions, and by one O atom from a coordinated water molecule in the apical position, forming a slightly distorted square-pyramidal geometry. In the crystal structure, molecules are linked through intermolecular N—H...O and O—H...O hydrogen bonds, forming a three-dimensional network.


2006 ◽  
Vol 62 (4) ◽  
pp. m668-m670
Author(s):  
Xin-Gen Hu ◽  
Hong-Ping Xiao

In the title compound, {[Co(C8H3BrO4)(C12H8N2)(H2O)]·H2O} n , each CoII ion is six-coordinated by three O atoms from three carboxylate groups of three 4-bromoisophthalate dianions, one water molecule, and two N atoms from a 1,10-phenanthroline ligand. The coordination geometry around the CoII cation is octahedral. Whereas the 1,10-phenanthroline ligand chelates to just one CoII cation, the 4-bromoisophthalate dianions are bonded to three CoII cations. The crystal structure is stabilized by several hydrogen bonds.


Author(s):  
Hea-Chung Joo ◽  
Ki-Min Park ◽  
Uk Lee

Nonavanadoplatinate [PtIVV9O28]7−, which is the first heteropolyoxovanadate in the decavanadate framework, [V10O28]6−, has been investigated crystallographically. The title compound, Na9[H2PtIVV9O28][H3PtIVV9O28]·40H2O, was obtained by a hydrothermal reaction at pH = 2. This compound contains two different protonated heteropolyoxovanadates, [H2PtIVV9O28]5−[polyanion (A)] and [H3PtIVV9O28]7−[polyanion (B)]. The locations of the H atoms on the protonated O atoms were observed in difference Fourier maps and confirmed by the interpolyanion hydrogen bonds, bond-length elongation and bond-valence-sum (VBS) analysis. The two (Pt and V)-bound μ2-O atoms are protonated in both polyanions. The position of the third protonated O atom in polyanion (B) is an interesting feature of the structure, being located on one (V2)-bound μ2-O atom. The discrete heteropolyanions form a dimer, {H5[PtV9O28]2}9−, through five interpolyanion hydrogen bonds. Additional O—H...O hydrogen bonds and interactions between Na+cations and water molecules as well as terminal O atoms of one of the polyanions consolidate the crystal packing.


2012 ◽  
Vol 68 (6) ◽  
pp. o1931-o1932
Author(s):  
Ke-Jie Zhang ◽  
Yan-Fang Zhang

In the crystal of the title compound, C16H17N2 +·NO3 −·H2O, the tetramethyl-1,10-phenanthrolinium cations, nitrate anions and lattice water molecules are all located on a mirror plane with the methyl H atoms of the cation equally disordered over two sites about the mirror plane. The cation, anion and water molecule are linked by O—H...O and N—H...O hydrogen bonds into a sheet parallel to the bc plane. π–π stacking between phenanthroline ring systems is observed in the crystal structure, the centroid–centroid distance being 3.4745 (6) Å.


2006 ◽  
Vol 62 (5) ◽  
pp. m965-m967 ◽  
Author(s):  
Hong-Jian Zhao ◽  
Ming-Xing Li ◽  
Min Shao ◽  
Hong-Jiang Liu

In the title compound, [Cu(C4H5NO4)(C10H8N2)(H2O)]·5H2O, the CuII atom is coordinated by an N,O-bidentate L-aspartate dianion, a bipyridine ligand and a water molecule in a distorted square-pyramidal geometry. Intermolecular hydrogen bonds involving the non-coordinated water molecules help to consolidate the crystal packing.


Sign in / Sign up

Export Citation Format

Share Document