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Di-μ-chlorido-bis-[dichlorido(N,N-diethyl-acetamidinato)(N,N-diethyl-acetamidine)titanium(IV)] acetonitrile disolvate.

ABSTRACT: In the centrosymmetric title compound [Ti(2)Cl(6)(C(6)H(13)N(2))(2)(C(6)H(14)N(2))(2)]·2C(2)H(3)N, an inversion center relates the two Ti atoms which display a distorted octa-hedral coordination geometry. There are two uncoordinated acetonitrile solvent mol-ecules per mol-ecule of title compound in the crystal structure.

SUBMITTER: Straessler NA

PROVIDER: S-EPMC2914912 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Bis(?-2-hy-droxy-methyl-2-methyl-propane-1,3-diolato)bis-[di-chlorido-titanium(IV)] diethyl ether disolvate.

Project description:The title complex, [Ti2Cl4{CH3C(CH2O)2(CH2OH)}2], lies across a centre of symmetry with a diethyl ether solvent mol-ecule hydrogen bonded to the -CH2OH groups on either side of it. The Ti(IV) atom is coordinated in a distorted octa-hedral geometry by a tripodal ligand and two terminal chloride atoms. There are three coordination modes for the tripodal ligand distinguishable on the basis of their very different Ti-O bond lengths. For the terminal alkoxo ligand, the Ti-O distance is 1.760?(1)?Å, the asymmetric bridge system has Ti-O bond lengths of 1.911?(1) and 2.048?(1)?Å. The Ti-O bond length for the alcohol O atom is the longest at 2.148?(1)?Å.

| S-EPMC3885006 | biostudies-literature

Di-μ-hydroxido-bis-[aqua-trichlorido-tin(IV)] diethyl ether disolvate.

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Di-μ-chlorido-dichlorido-bis{μ-6,6'-dimethoxy-2,2'-[o-phenylenebis(nitrilomethylidyne)]diphenolato}dilead(II)dizinc(II) N,N'-dimethyl-formamide disolvate.

Project description:The title compound, [Pb(2)Zn(2)(C(22)H(18)N(2)O(4))(2)Cl(4)]·2C(3)H(7)NO, was synthesized using a step-by-step method and has a slipped sandwich configuration. The coordination environment of the Zn(2+) ion is distorted square-pyramidal and it is coordinated by N(2)O(2) of the Schiff base ligand and chloride; each Pb(2+) ion is coordinated by the four 6,6'-dimeth-oxy-2,2'-[o-phenyl-ene-bis(nitrilo-methyl-idyne)]diphenolate (L) O atoms and two chloride ions. The Zn(II)Pb(II) dinuclear unit, through an inversion-symmetry operation, forms a tetra-meric complex with double chloride bridges.

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| S-EPMC3884980 | biostudies-literature

Bis(N,N-diisopropyl-butanaminium) bis-[di-μ-chlorido-bis-[dichlorido-cuprate(II)]].

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Crystal structure of di-μ-chlorido-bis-[chlorido-bis-(1,2-dimethyl-5-nitro-1H-imidazole-κN3)copper(II)] acetonitrile disolvate.

Project description:1,2-Dimethyl-5-nitro-imidazole (dimetridazole, dimet) is a compound that belongs to a class of nitro-imidazole drugs that are effective at inhibiting the activity of certain parasites and bacteria. However, there are few reports that describe structures of compounds that feature metals complexed by dimet. Therefore, we report here that dimet reacts with CuCl2·H2O to yield a chloride-bridged copper(II) dimer, [Cu2Cl4(C5H7N3O2)4] or [Cu(μ-Cl)Cl(dimet)2]2. In this mol-ecule, the CuII ions are coordinated in an approximately trigonal-bipyramidal manner, and the mol-ecule lies across an inversion center. The dihedral angle between the imidazole rings in the asymmetric unit is 4.28 (7)°. Compared to metronidazole, dimetridazole lacks the hy-droxy-ethyl group, and thus cannot form inter-molecular O⋯H hydrogen-bonding inter-actions. Instead, [Cu(μ-Cl)Cl(dimet)2]2 exhibits weak inter-molecular inter-actions between the hydrogen atoms of C-H groups and (i) oxygen in the nitro groups, and (ii) the terminal and bridging chloride ligands. The unit cell contains four disordered aceto-nitrile mol-ecules. These were modeled as providing a diffuse contribution to the overall scattering by SQUEEZE [Spek (2015 ▸). Acta Cryst. C71, 9-18], which identified two voids, each with a volume of 163 Å3 and a count of 46 electrons, indicative of a total of four aceto-nitrile mol-ecules. These aceto-nitrile mol-ecules are included in the chemical formula to give the expected calculated density and F(000).

| S-EPMC5095849 | biostudies-literature

Di-μ-oxido-bis-[(1,4,8,11-tetra-aza-cyclo-tetra-decane-κN,N',N'',N''')dimangan-ese(III,IV)] bis-(tetra-phenyl-borate) chloride acetonitrile disolvate.

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| S-EPMC3151985 | biostudies-literature

Di-μ-methanolato-κO:O-bis[tri-chlorido(dimethyl-formamide-κO)tin(IV)].

Project description:The title compound, [Sn(2)(CH(3)O)(2)Cl(6)(C(3)H(7)NO)(2)], contains two hexa-coordinated Sn(IV) atoms symmetrically bridged by two deprotonated methanol ligands, with an inversion center in the middle of the planar Sn(2)O(2) ring. The other sites of the distorted octa-hedral coordination geometry of the Sn(IV) atom are occupied by three Cl atoms and one O atom from a dimethyl-formamide mol-ecule. The complex mol-ecules are connected by weak C-H⋯Cl hydrogen bonds into a two-dimensional supra-molecular network parallel to (10).

| S-EPMC3051740 | biostudies-literature

{μ-N,N'-Bis[1-(2-pyridyl)ethylidene]benzene-1,2-diamine}di-μ-chlorido-bis[diaquanickel(II)] dichloride ethanol disolvate.

Project description:In the title compound, [Ni(2)Cl(2)(C(20)H(18)N(4))(H(2)O)(4)]Cl(2)·2C(2)H(6)O, the coordination environment of each Ni(2+) ion is distorted octa-hedral formed by two N atoms from the Schiff base ligand, two O atoms from water mol-ecules and two chloride anions acting as μ(2) bridges between the metal ions. The coordinated water mol-ecules are linked to the uncoordinated ethanol mol-ecules and chloride anions by O-H⋯O and O-H⋯Cl hydrogen bonds, although the assignment of some of these is tentative. A weak inter-molecular O-H⋯N inter-action within the ligand is also observed.

| S-EPMC2968006 | biostudies-literature

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