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Crystal structure of di-μ-chlorido-bis-[di-chlorido(l-histidinium-κO)cadmium(II)].

ABSTRACT: In the title compound, [Cd₂(C₆H₉N₃O₂)₂Cl₆], the coordination polyhedra around the Cd^II cations are distorted trigonal bipyramids. Two of the chloride ions (one axial and one equatorial) are bridging to the other metal atom, leading to a Cd⋯Cd separation of 3.9162 (4) Å. The O atom of the l-histidinium cation lies in an axial site. In the crystal, numerous N-H⋯Cl, N-H⋯O, C-H⋯O and C-H⋯Cl hydrogen bonds link the mol-ecules into a three-dimensional network. Theoretical calculations and spectroscopic data are available as supporting information.

SUBMITTER: Mohamedi N

PROVIDER: S-EPMC6658965 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Di-μ-chlorido-bis-[chlorido(1,10-phenanthroline-κN,N')zinc(II)].

Project description:In the crystal structure of the title complex, [Zn(2)Cl(4)(C(12)H(8)N(2))(2)], each of the two five-coordinated Zn(II) atoms displays a strongly distorted trigonal-bipyramidal geometry defined by two N atoms from the chelate ligand and by one terminal and two bridging chloride anions. The crystal structure is stabilized by C-H⋯Cl inter-actions. There is inter-molecular π-π stacking between adjacent phenanthroline ligands, with a centroid-centroid distance of 3.151 (3) Å.

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Crystal structure of di-chlorido-bis-(methyl isonicotinate-κN)copper(II).

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| S-EPMC4420097 | biostudies-literature

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catena-Poly[cadmium(II)-(μ-3-ammonio-3-phenyl-propanoato-κO:O')-di-μ-chlorido].

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| S-EPMC2961993 | biostudies-literature

Crystal structure of di-chlorido-bis-(N,N'-di-methyl-thio-urea-κS)mercury(II).

Project description:The mol-ecular structure of the title compound, [HgCl2(C3H8N2S)2], has point group symmetry 2, with the twofold rotation axis passing through the Hg(II) atom. The latter is coordinated by two Cl atoms and two N,N'-di-methyl-thio-urea (Dmtu) ligands through their S atoms, defining a distorted tetra-hedral coordination sphere with bond angles in the range 102.47 (4)-118.32 (4)°. Intra- and inter-molecular hydrogen bonds of the type N-H⋯Cl with S(6) and R 2 (2)(12) ring motifs are present. The inter-molecular contacts make up polymeric chains extending parallel to [101].

| S-EPMC4555414 | biostudies-literature

catena-Poly[(dichloridocadmium)-di-?-chlorido-[bis-(morpholinium-?O)cadmium]-di-?-chlorido].

Project description:In the title compound, [Cd(2)Cl(6)(C(4)H(10)NO)(2)](n), the coordination geometry of each Cd(II) ion is distorted octa-hedral, but with quite different coordination environments. One Cd(II) atom is coordinated by four Cl atoms and two O atoms from two morpholinium ligands, while the other is coordinated by six Cl atoms. Adjacent Cd(II) atoms are inter-connected alternately by paired chloride bridges, generating a chain parallel to the a axis. Inter-chain N-H?Cl inter-actions form a two-dimensional network.

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Crystal structure of di-chlorido-bis-(1,3-diazinane-2-thione-?S)cadmium.

Project description:In the structure of the title compound, [CdCl2(C4H8N2S)2], the Cd(II) atom is coordinated by two chloride ions and two 1,3-diazinane-2-thione (Diaz) mol-ecules through their S atoms. The geometry around the Cd(II) atom is distorted tetra-hedral, with bond angles in the range 101.55?(7)-117.91?(8)°. The CH2 groups of one Diaz ligand are disordered over two sets of sites with an occupancy ratio of 0.711?(12):0.289?(12). The mol-ecular structure is stabilized by intra-molecular N-H?Cl hydrogen-bonding inter-actions, generating a butterfly syn conformation. Inter-molecular N-H?Cl and N-H?S inter-actions lead to the formation of a three-dimensional network structure. The structure has been determined from a crystal twinned by nonmerohedry, by a 180° rotation around the reciprocal c axis. The twin ratio refined to 0.8866?(6):0.1134?(6).

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Crystal structure of [N,N'-bis-(4-methyl-phen-yl)-1,2-di-phenyl-ethane-1,2-di-imine-κ(2) N,N']di-chlorido-palladium(II) methanol monosolvate.

Project description:The title compound, [PdCl2(C28H24N2)]·CH3OH, was pre-pared from the reaction of PdCl2(DMSO)2 (DMSO is di-methyl sulfoxide) and N,N'-bis-(4-methyl-phen-yl)-1,2-di-phenyl-ethane-1,2-di-imine in methanol. The chelating di-imine core of the title compound deviates slightly from planarity, with an N-C-C-N torsion angle of 5.3 (3)°. Delocalization in the di-imine core is indicated by N-C and C-C bonds that are, respectively, longer and shorter than those found in related nonchelating di-imines. The distorted square-planar coordination environment around the Pd(II) atom is manifested as bond angles that are smaller and larger than 90°, and palladacycle torsion angles of -173.22 (16) and 167.06 (16)°. These deviations are attributed to the small bite angle of 79.13 (8)° of the di-imine chelate. The crystal packing exhibits weak inter-molecular hydrogen-bonding inter-actions involving aromatic H atoms, Cl atoms and inter-calated methanol solvent mol-ecules, defining layers parallel to (010).

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