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In the title polymeric complex, [Co(C8H4NO2)2(C10H8N2)(H2O)2]n, the CoII atom, located on an inversion center, is surrounded by two N-donor molecules, two water molecules, and two 4-cyanobenzoate ligands, which impose an octahedral environment on the metal. 4-Cyanobenzoate, acting as a bridging linker, coordinates to the metal center in a monodentate fashion, in a skew mode. Both bridging spacers, viz. the 4,4'-bipyridine and 4-cyanobenzoate ligands, link adjacent metal atoms into a two-dimensional network.
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The title compound, [Ag(C9H6NO)(C9H7NO)], crystallizes as a non-centrosymmetric polymorph. The structure was previously reported by Wu et al. [(2006). Acta Cryst. E62, m281–m282] in the centrosymmetric space group Pbcn. The AgI ion displays a distorted tetrahedral coordination geometry defined by two N and two O atoms from a neutral quinolin-8-ol ligand (HQ) and a deprotonated quinolin-8-olate anion (Q−). The dihedral angle between the two ligands is 47.0 (1)°. Strong O—H
O hydrogen bonds link the molecules into a supramolecular chain along the a-axis direction.
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The title compound, NH4+·C5H3ClNO3S−, was prepared by the hydrolysis of 4-chloropyridine-3-sulfonamide. In the crystal structure, a three-dimensional network is formed via N—H
O [H
O = 1.97 (3)–2.41 (2) Å] and N—H
N [H
N = 2.13 (3) Å] hydrogen bonds.
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In the title compound, [Zn(C12H8N2)2(H2O)2](C23H14O6)·H2O, the ZnII ion lies on a twofold axis and exhibits an approximately octahedral configuration. The pamoate dianion [or 4,4-methylenebis(3-hydroxy-2-naphthoate)], also lying on a twofold axis, is uncoordinated and balances the charge. In the crystal structure, O—H
O intermolecular hydrogen bonds link the mononuclear ions into a two-dimensional network.
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In the title compound, {[Co(C8H4O4)(C6H12N2)(H2O)2]·C3H7NO}n, the Co atom is coordinated by the two N atoms from two 1,4-diazabicyclo[2.2.2]octane (dabco) ligands, two O atoms from two isophthalate dianions and two water molecules in a distorted octahedral geometry. The dabco molecules function as μ2-bridging ligands, forming polymeric linear chains running along the c axis. The crystal structure is stabilized by intermolecular O—H
O hydrogen bonds.
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In the title compound, [Pb(C7H4O5S)(C12H8N2)(H2O)]n, each PbII atom is coordinated by five O atoms from one water molecule and three 3-sulfonatobenzoate ligands and two N atoms from one 1,10-phenanthroline. The 3-sulfonatobenzoate ligand serves as a μ3-bridge, linking three PbII atoms, and extends the structure into a one-dimensional ladder. The O—H
O hydrogen bonds generate a two-dimensional layer and enhance the stability of the structure.
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The polymeric title compound, {[Cu(C8H3NO6)(C10H8N2)]·H2O}n, has two disordered nitroterephthalate units located around centres of inversion; one functions in a μ2-bridging mode and the other in a μ4-bridging mode to surround the five-coordinated Cu atom in a square-pyramidal geometry. The crystal structure reveals a two-dimensional hydrogen-bonded network involving a water molecule of crystallization.
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The reaction of copper(II) chloride with 2-bromo-1,4-benzenedicarboxylic acid (H2bbdc) and 2,2′-bipyridine in aqueous solution under hydrothermal conditions gave the title compound, [Cu(C8H4BrO4)2(C10H8N2)]. The CuII atom lies on a twofold axis and is coordinated by two singly deprotonated 2-bromo-1,4-benzenedicarboxylate groups and one 2,2′-bipyridine ligand in a square-planar geometry. Intermolecular O—H
O hydrogen bonds between carboxylate groups ensure a two-dimensional architecture with double sheets.
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The crystal structure of the title compound, poly[deca-μ-aqua-octaaqua-μ-decavanadato-dilithium(I)tetrasodium(I)] [Li2Na4(H2O)18{V10O28}]n, consists of polymeric chains composed of centrosymmetric [V10O28]6− polyanions with Ci symmetry linked by [LiNa2(H2O)9]3+ cation groups via O-polyanion—Na-group—O-polyanion coordination, with Na—O bond lengths of 2.366 (2)–2.495 (2) Å. The lithium disodium nonahydrate is composed of two NaO6 octahedra and one LiO4 tetrahedron. Hydrogen bonds occur between the polyanion and the cation group, and within the cation group. Intrachain OW—H
O hydrogen bonds stabilize the polymeric chain structure, while interchain OW—H
O hydrogen bonds link neighbouring polymeric chains to form the complete supramolecular structure.
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The title compound, C12H10N2·C14H10O5, is a cocrystal of (E)-4,4′-diazastilbene and 4,4′-oxydibenzoic acid, lying on an inversion centre and a twofold axis, respectively. Molecules are linked by strong intermolecular O—H
N hydrogen bonds, resulting in a one-dimensional architecture.
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The title compound, C5H4ClNO3S, was obtained by hydrolysis of 4-chloropyridine-3-sulfonamide in dilute hydrochloric acid. In the crystal structure, one-dimensional chains are formed via N—H
O hydrogen bonds. In addition, weak C—H
Cl hydrogen bonds link these chains into a two-dimensional network
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The crystal structure of the title compound, C4H6O6·H2O, displays a two-dimensional network formed by O—H
O hydrogen bonds.
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The title complex, C8H6O3·C4H8NO2·0.5H2O, was obtained from an aqueous solution of racemic 2-aminobutyric acid and (S)-2-hydroxyphenylacetic acid. In the crystal structure, a two-dimensional network is formed via O—H
O [H
O = 1.63 (5)–2.52 (5) Å] and N—H
O [H
O = 1.91 (4)–2.30 (4) Å] hydrogen bonds.
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The novel title compound, poly[octa-
-aqua-octaaqua-
-decavanadato-hexalithium], contains [V10O28]6- polyanions with 2/m symmetry linked by centrosymmetric [Li6(H2O)16]6+ cation chains to form a two-dimensional network structure.
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The crystal structure of the title compound, (NH4)2[Ni(H2O)6]2V10O28·4H2O, comprises centrosymmetric [V10O28]6- anions that are linked via hydrogen bonding by two NH4+ cations, two [Ni(H2O)6]2+ cations, and four water molecules into a three-dimensional structure. The compound is isotypic with other members of the [M(H2O)6]2(NH4)2V10O28·4H2O series (M = Mg and Co).
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The title compound, C13H8Cl3N3O, shows the substituted pyridine ring to be twisted by about 10° from the rest of the essentially planar molecule.
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The title compound, C23H25N3, is an important pyrrolotriazole compound. The two phenyl rings are nearly perpendicular, with a dihedral angle between them of 85.88 (8)°. The five-membered pyrrolidine ring adopts an envelope conformation.
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The title compound, C22H22O3, was synthesized by a reaction of ethyl acetoacetate and diphenylmethylenecyclopropane. The five-membered dihydrofuran ring adopts an envelope conformation.