Crystal structure of di-benzyl-ammonium hydrogen (4-amino-phen-yl)arsonate monohydrate.

The title salt, CHN·CHAsNO ·HO or [(CHCH)NH][HNCHAs(OH)O]·HO, (), was synthesized by mixing an aqueous solution of (4-amino-phenyl)-arsonic acid with an ethano-lic solution of di-benzyl-amine at room temperature. Compound crystallizes in the monoclinic 2/c space group. The three components forming are linked N-H⋯O and O-H⋯O inter-molecular hydrogen bonds, resulting in the propagation of an infinite zigzag chain.

Synthesis and topology analysis of chlorido-triphen-yl(triphenyl phosphate-κ)tin(IV).

The title Sn complex, [Sn(CH)Cl(CHOP)], is a formal adduct between triphenyl phosphate (PhO)P=O and the stannane derivative chlorido-tri-phenyl-tin, SnPhCl. The structure refinement reveals that this mol-ecule displays the largest Sn-O bond length for compounds including the =O→SnPhCl fragment ( = P, S, C, or V), 2.6644 (17) Å.

Monoclinic polymorph of chlorido-(dimethyl sulfoxide-κ)tri-phenyl-tin(IV).

The crystal structure of the title tin complex, [Sn(CH)Cl(CHOS)], (I), has been reported with one mol-ecule in the asymmetric unit in an ortho-rhom-bic cell [Kumar (2009 ▸). E, m1602-m1603]. While using SnPhCl as a starting material for a reaction for which the products were recrystallized over a very long time (six months) from dimethyl sulfoxide (DMSO), a new polymorph was obtained for (I), with two independent mol-ecules in the asymmetric unit of a monoclinic cell.

Acetonyltri-phenyl-phospho-nium 2,3,5-tri-phenyl-tetra-zolium tetra-chlorido-cuprate(II).

The title compound, (CHOP)(CHN)[CuCl], was obtained by reacting CuCl·2HO with a mixture of one equivalent of acetonyltri-phenyl-phospho-nium chloride and one equivalent of 2,3,5-tri-phenyl-tetra-zolium chloride in aceto-nitrile. In the structure, the Cu centre in the dianion is bonded to four chloride ligands and adopts a distorted tetra-hedral geometry. The phospho-nium cation likewise adopts the expected tetra-hedral geometry.

Crystal structure of μ-oxalato-κ:-bis-[(dimethyl sulfoxide-κ)tri-phenyl-tin(IV)].

In the previously reported [CO(SnPh)] complex [Diop (2003 ▸). , 881-882.], the Sn atoms are able to formally complete their coordination by addition of dimethyl sulfoxide (DMSO) mol-ecules provided by the reaction medium, affording the title complex, [Sn(CH)(CO)(CHOS)].

Crystal structure of the monoclinic phase (phase IV) of bis-(tetra-methyl-ammonium) tetra-chlorido-cuprate(II).

The crystal structure of the low-temperature monoclinic phase of the title compound, [(CH)N][CuCl], was determined at 120 K. The structure of the room-temperature phase has been determined in the ortho-rhom-bic space group [Morosin & Lingafelter (1961 ▸). 50-51; Clay (1975 ▸).

Crystal structure of di-ethyl-ammonium aniline-4-sulfonate anilinium-4-sulfonate.

The title compound, CHN·CHNOS·CHNOS, consists of an ion pair and a zwitterionic neutral mol-ecule. The cation adopts an extended conformation [C-C-N-C torsion angles = 177.1 (3) and -178.

Crystal structure of bis-(N,N,N',N'-tetra-methyl-guanidinium) tetra-chlorido-cuprate(II).

In the structure of the title salt, (C5H14N3)2[CuCl4], the Cu(II) atom in the anion lies on a twofold rotation axis. The tetra-chlorido-cuprate(II) anion adopts a flattened tetra-hedral coordination environment and inter-acts electrostatically with the tetra-methyl-guanidinium cation. The crystal packing is additionally consolidated through N-H⋯Cl and C-H⋯Cl hydrogen bonds, resulting in a three-dimensional network structure.

Crystal structure of 2-methyl-1H-imidazol-3-ium hydrogen oxalate dihydrate.

Single crystals of the title mol-ecular salt, C4H7N2 (+)·HC2O4 (-)·2H2O, were isolated from the reaction of 2-methyl-1H-imidazole and oxalic acid in a 1:1 molar ratio in water. In the crystal, the cations and anions are positioned alternately along an infinite [010] ribbon and linked together through bifurcated N-H⋯(O,O) hydrogen bonds. The water mol-ecules of crystallization link the chains into (10-1) bilayers, with the methyl groups of the cations organized in an isotactic manner.

Crystal structures of the two salts 2-methyl-1H-imidazol-3-ium nitrate-2-methyl-1H-imidazole (1/1) and 2-methyl-1H-imidazol-3-ium nitrate.

The title salts, C4H7N2 (+)·NO3 (-)·C4H6N2, (I), and C4H7N2 (+)·NO3 (-), (II), were obtained from solutions containing 2-methyl-imidazole and nitric acid in different concentrations. In the crystal structure of salt (I), one of the -NH H atoms of the imidazole ring shows half-occupancy, hence only every second mol-ecule is in its cationic form. The nitrate anion in this structure lies on a twofold rotation axis.

Crystal structure of bis-(2-methyl-1H-imidazol-3-ium) μ-oxalato-bis-[n-butyl-tri-chlorido-stannate(IV)].

The Sn(IV) atom in the centrosymmetric anion of the title salt, (C4H7N2)2[Sn2(C4H9)2(C2O4)Cl6], is coordinated in a distorted octa-hedral mode by two O atoms of a bridging oxalate moiety, three Cl atoms and a C atom of an n-butyl group. The latter is disordered over two sets of sites in a 0.66:0.

Crystal structure of di-chlorido-bis-(dimethyl N-cyano-dithio-imino-carbonate)zinc.

The Zn(II) atom in the title complex, [ZnCl2(C4H6N2S2)2], is coordinated in a distorted tetra-hedral manner by two Cl atoms and two terminal N atoms of two dimethyl N-cyano-dithio-imino-carbonate ligands. In the crystal, the complex mol-ecules are connected through C-H⋯Cl hydrogen bonds and Cl⋯S contacts, leading to a two-dimensional structure extending parallel to the ab plane.

Crystal structure of bis-(2-methyl-1H-imidazol-3-ium) di-hydroxidobis(oxalato-κ(2) O (1),O (2))stannate(IV) monohydrate.

In the structure of the hydrated title salt, (C4H7N2)2[Sn(C2O4)2(OH)2]·H2O, the asymmetric unit comprises one stannate(IV) dianion, two organic cations and one water mol-ecule of crystallization. The [Sn(C2O4)2(OH)2](2-) dianion consists of an Sn(IV) atom chelated by two oxalate anions and coordinated by two OH(-) ligands in a cis octa-hedral arrangement. Neighbouring anions are connected through O-H⋯O hydrogen bonds between hydroxide groups and non-coordinating oxalate O atoms into layers expanding parallel to (100).

Crystal structure of N-[(methyl-sulfan-yl)carbon-yl]urea.

The almost planar (r.m.s.

Crystal structure of bis-(1,4-di-aza-bicyclo-[2.2.2]octan-1-ium) thio-sulfate dihydrate.

The crystal structure of the hydrated title salt, 2C6H13N2 (+)·S2O3 (2-)·2H2O, contains a centrosymmetric cyclic motif of eight hydrogen-bonded mol-ecular subunits. Two DABCOH(+) cations (DABCO = 1,4-di-aza-bicyclo-[2.2.

Crystal structure of di-chlorido-bis-(dimethyl N-cyano-dithio-imino-carbonate)cobalt(II).

The structure of the mononuclear title complex, [{(H3CS)2C=NC  N}2CoCl2], consists of a Co(II) atom coordinated in a distorted tetra-hedral manner by two Cl(-) ligands and the terminal N atoms of two dimethyl N-cyano-dithio-imino-carbonate ligands. The two organic ligands are almost coplanar, with a dihedral angle of 5.99 (6)° between their least-squares planes.

Crystal structure of catena-poly[N,N,N',N'-tetra-methyl-guanidinium [(chlorido-cadmate)-di-μ-chlorido]].

In the structure of the title salt, {(C5H14N3)[CdCl3]} n , the Cd(II) atom of the complex anion is five-coordinated by one terminal and four bridging Cl atoms. The corresponding coordination polyhedron is a distorted trigonal bipyramid, with Cd-Cl distances in the range 2.4829 (4)-2.

Crystal structure of bis-(acetonyltri-phenyl-phospho-nium) tetra-chlorido-cobaltate(II).

The complex title salt, (C21H20OP)2[CoCl4], is the reaction product of CoCl2 with acetonyltri-phenyl-phospho-nium chloride in aceto-nitrile. In the anion, the Co(II) atom exhibits a typical tetra-hedral environment, with Co-Cl distances ranging from 2.2721 (6) to 2.

Crystal structure of bis-(2-methyl-1H-imidazol-3-ium) tetra-chlorido-cobaltate(II).

The asymmetric unit of the title compound, (C4H7N2)2[CoCl4], consists of two 2-methyl-imidazolium cations and one tetra-hedral [CoCl4](2-) anion. The anions and cations inter-act through N-H⋯Cl hydrogen bonds to define layers with a stacking direction along [100]. Besides van der Waals forces, weak C-H⋯Cl inter-actions between these layers stabilize the crystal packing.

Crystal structure of (ferrocenylmeth-yl)di-methyl-ammonium hydrogen oxalate.

The crystal structure of the title salt, [Fe(C5H5)(C8H13N)](HC2O4), consists of discrete (ferrocenylmeth-yl)di-methyl-ammonium cations and hydrogen oxalate anions. The anions are connected through a strong O-H⋯O hydrogen bond, forming linear chains running parallel to [100]. The cations are linked to the anions through bifurcated N-H⋯(O,O') hydrogen bonds.

Crystal structure of the bis-(cyclo-hexyl-ammonium) succinate succinic acid salt adduct.

The crystal structure of the title salt adduct, 2C6H14N(+)·C4H4O4 (2-)·C4H6O4, consists of two cyclo-hexyl-ammonium cations, one succcinate dianion and one neutral succinic acid mol-ecule. Succinate dianions and succinic acid mol-ecules are self-assembled head-to-tail through O-H⋯O hydrogen bonds and adopt a syn-syn configuration, leading to a strand-like arrangement along [101]. The cyclo-hexyl-ammonium cations have a chair conformation and act as multidentate hydrogen-bond donors linking adjacent strands through inter-molecular N-H⋯O inter-actions to both the succinate and the succinic acid components.

Crystal structure of 2-methyl-1H-imidazol-3-ium aqua-tri-chlorido-(oxalato-κ(2) O,O')stannate(IV).

The tin(IV) atom in the complex anion of the title salt, (C4H7N2)[Sn(C2O4)Cl3(H2O)], is in a distorted octa-hedral coordination environment defined by three chlorido ligands, an oxygen atom from a water mol-ecule and two oxygen atoms from a chelating oxalate anion. The organic cation is linked through a bifurcated N-H⋯O hydrogen bond to the free oxygen atoms of the oxalate ligand of the complex [Sn(H2O)Cl3(C2O4)](-) anion. Neighbouring stannate(IV) anions are linked through O-H⋯O hydrogen bonds involving the water mol-ecule and the two non-coordinating oxalate oxygen atoms.

Crystal structure of bis-(cyclo-hexyl-ammonium) di-phenyl-dioxalatostannate(IV).

Reaction of oxalic acid and di-phenyl-tin dichloride in the presence of cyclo-hexyl-amine led to the formation of the title salt, (C6H14N)2[Sn(C6H5)2(C2O4)2]. The dianion is made up from an Sn(C6H5)2 moiety cis-coordinated by two chelating oxalate anions, leading to an overall distorted octa-hedral coordination geometry of the Sn(IV) atom. The negative charges are compensated by two surrounding cyclo-hexyl-ammonium cations adopting chair conformations each.

Bis(cyclo-hexyl-ammonium) tetra-chlorido-diphenyl-stannate(IV).

The title compound, (C6H14N)2[Sn(C6H5)2Cl4], contains cyclo-hexyl-ammonium cations in general positions and a stannate(IV) anion that is located on a twofold rotation axis. The Sn(IV) atom in the complex anion is surrounded by four Cl(-) ligands and two trans-phenyl groups in a distorted octa-hedral configuration. The anions are connected with the cations through N-H⋯Cl hydrogen bonds.

Tri-benzyl-ammonium chloride.

Single crystals of the title salt, C21H21NH(+)·Cl(-), were isolated as a side product from the reaction involving [(C6H5CH2)3NH]2[HPO4] and Sn(CH3)3Cl in ethanol. Both the cation and the anion are situated on a threefold rotation axis. The central N atom in the cation has a slightly distorted tetra-hedral environment, with angles ranging from 107.