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Penta-carbon-yl{3-[(2S)-1-methyl-pyrrolidin-2-yl]pyridine}tungsten(0).

ABSTRACT: The title compound, [W(C(10)H(14)N(2))(CO)(5)], contains five carbonyl ligands and a nicotine ligand in an octa-hedral arrangement around the tungsten atom. The metal atom shows cis angles in the range 87.30 (16)-94.2 (2)°, and trans angles between 175.2 (2) and 178.1 (4)°. The W-CO bond trans to the pyridine N atom [1.987 (6) Å] is noticeably shorter than the others, which range between 2.036 (3) and 2.064 (3) Å, possibly due to the well-known trans effect. The distance between the W atom and the pyridine N atom is 2.278 (4) Å.

SUBMITTER: Onani MO

PROVIDER: S-EPMC2983989 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Penta-carbon-yl(imidazolidine-2-thione-?S)tungsten(0).

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Project description:The acetonitrile ligand in the title compound, [W(CH(3)CN)(CO)(5)], is coordinated end-on to a penta-carbonyl-tungsten(0) fragment with a W-N bond length of 2.186?(4)?Å, completing an octa-hedral coordination environment around the W atom.

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Project description:The asymmetric unit of the title complex, [W(C(7)H(7)NS)(CO)(5)], comprises two independent mol-ecules. In each, the W atom is coordinated by five CO groups and the S atom of the benzencarbothioamide ligand in a distorted octa-hedral geometry. The crystal packing can be described as undulating layers of W(CO)(5) and benzene-carbothio-amide parallel to (001). In the crystal, components are linked via inter-molecular N-H?O and C-H?O hydrogen bonds to form a dimeric chains along the [010] direction. Intra-molecular N-H?C inter-actions are also observed.

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Project description:There are two independent mol-ecules in the asymmetric unit of the title compound, C(19)H(33)N(2)O(4)P. In the crystal, the two independent mol-ecules are linked via N-H?O=P hydrogen bonds, forming dimers.

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Project description:In the title complex, [Fe(C(5)H(5)){Sn(C(2)H(5))(3)}(C(5)H(5)N)(CO)], the Fe atom is coordinated by carbonyl, pyridine, triethyl-stannyl and cyclo-penta-dienyl ligands in a typical three-legged piano-stool configuration. The Fe-Sn and Fe-N bond distances are 2.5455 (13) and 1.984 (6) Å, respectively.

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catena-Poly[[dibromidomercury(II)]-?-3-(1-methyl-pyrrolidin-2-yl)pyridine-?N:N'].

Project description:In the title polymeric complex, [HgBr(2)(C(10)H(14)N(2))](n), each nicotine mol-ecule is bonded to two adjacent Hg atoms, one through the pyrrolidine N atom and the other through the pyridine N atom, forming zigzag chains along [010]. The coordination around mercury is completed by two bromido ligands resulting in a distorted tetra-hedral arrangement.

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Project description:In the title dinuclear iridium(III) complex, [Ir(2)(C(10)H(15))(2)(C(5)H(5)N(2)S)(2)]I(2), the iridium(III) atoms are bridged by 2-(aminosulfanyl)pyridine(1-) [(2-py)SNH] ligands in a ?-(2-py)SNH-?(2)N(py),N(NH):?N(NH) mode. The dinuclear complex cation lies on a crystallographic inversion center, resulting in a planar Ir(2)N(2) ring with an Ir-N(py) bond length of 2.085?(9)?Å and bridging Ir-N(NH) bonds of 2.110?(9) and 2.113?(9)?Å. The two (2-py)S units have mutually anti configurations with respect to the Ir(2)N(2) ring.

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