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Trans-Tetra-iodidobis(tri-p-tolyl-phosphine oxide-?O)tin(IV).

ABSTRACT: The centrosymmetric title compound, [SnI(4)(C(21)H(21)OP)(2)], is a monomeric complex that displays a nearly octa-hedral coordination of tin(IV), with an Sn-O bond distance of 2.159?(2)?Å and an average Sn-I bond distance of 2.79?(3)?Å.

SUBMITTER: Hitosugi-Levesque M

PROVIDER: S-EPMC2960702 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature

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Tri-p-tolyl-phosphine.

Project description:In the title compound C(21)H(21)P, the P atom is situated on a crystallographic threefold rotatory-inversion axis, resulting in threefold rotation symmetry of the title compound. The dihedral angles between the symmetry-related benzene rings are 87.40?(18)°.

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Tetra-iodido[methyl-enebis(diphenyl-phosphine oxide)-κO:O']tin(IV) chloro-form solvate.

Project description:The title compound, [SnI(4)(C(25)H(22)O(2)P(2))]·CHCl(3), crystallized from a chloro-form solution of SnI(4) and the diphosphine CH(2)(PPh(2))(2) exposed to air. The monomeric complex displays a distorted octa-hedral coordinaton for the tin(IV) atom with average Sn-I and Sn-O bond lengths of 2.79 (2) and 2.15 (1) Å, respectively.

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trans-Carbonyl-chloridobis(tri-p-tolyl-phosphine)rhodium(I) acetone solvate.

Project description:The title compound, [RhCl(C(21)H(21)P)(2)(CO)]·C(3)H(6)O, was precipitated in trace yield from a reaction of RhCl(cod)(THP) with P(p-tol)(3) in a 1:1 acetone-d(6)/CD(3)OD solution under a hydrogen atmosphere [p-tol = p-tolyl, THP = tris-(hydroxy-meth-yl)phosphine, P(CH(2)OH)(3), and cod = 1,5-cyclo-octa-diene]. The complex displays a square-planar geometry around the Rh(I) atom. The complex mol-ecules and the acetone mol-ecules are linked into a chain along the a axis by inter-molecular C-H?Cl and C-H?O hydrogen bonds.

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Tribenzyl-chlorido(triphenyl-phosphine oxide-?O)tin(IV).

Project description:In the title tribenzyl-chloridotin-triphenyl-phosphine adduct, [Sn(C(7)H(7))(3)Cl(C(18)H(15)OP)], the Sn(IV) atom is in a trans-C(3)SnClO trigonal-bipyramidal geometry and is displaced out of the C(3)Sn girdle in the direction of the axial Cl atom by 0.112?(1) in one independent mol-ecule and by 0.167?(1)?Å in the other. The phenyl ring of one of the six benzyl units was refined as equally disordered over two sets of sites.

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Dichloridobis(di-tert-butyl-methyl-phosphine oxide-κO)diphenyl-tin(IV).

Project description:The complete mol-ecule of the title compound, [Sn(C(6)H(5))(2)Cl(2)(C(9)H(21)OP)(2)], is generated by crystallographic inversion symmetry, the Sn atom is located on a special position of site symmetry . The Sn atom adopts an all-trans SnC(2)O(2)Cl(2) octa-hedral geometry. As a consequence of the bulky substituents at the O atom, the P-O-Sn bond angle is 163.9 (3)°.

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Tribenzylbis(triphenyl-arsine oxide-?O)tin(IV) tetra-phenyl-borate.

Project description:The crystal structure of the title salt, [Sn(C(7)H(7))(3)(C(18)H(15)AsO)(2)][B(C(6)H(5))(4)], consists of discrete cations and anions; the tin atom of the cation is five-coordinated in a distorted trans-C(3)SnO(2) trigonal-bipyramidal geometry [summation of C-Sn-C angles 360.0?(3)° and O-Sn-O angle 173.1?(1)°]. The structure contains voids of 113?(19)?Å(3), but no solvent mol-ecule could reasonably be located there.

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Di-?-hydroxido-bis-[bromidodi-p-tolyl-tin(IV)].

Project description:The Sn atoms in the dinuclear title compound, [Sn(2)Br(2)(C(7)H(7))(4)(OH)(2)], exist in distorted trigonal-bipyramidal BrSnC(2)O(2) coordination geometries. Each of the two independent dinuclear mol-ecules comprising the asymmetric unit is disposed about a center of inversion. In the crystal, molecules are linked by an O-H? hydrogen bond.

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Tetra-chlorido[(diphenyl-phosphino)diphenyl-phosphine oxide-κO]zirconium(IV) benzene monosolvate.

Project description:In the title centrosymmetric mononuclear Zr(IV) compound, [ZrCl(4){P(O)(C(6)H(5))(2)P(C(6)H(5))(2)}(2)]·C(6)H(6), the central Zr(IV) ion is coordinated by two O atoms from two symmetry-related (diphenyl-phosphino)diphenyl-phosphine ligands and four Cl atoms in a distorted octahedral geometry with the four Cl atoms in the equatorial positions. The mol-ecule lies about a center of inversion and the benzene solvent mol-ecule about another center of inversion. The P=O bond [1.528 (2) Å] is slightly longer than a typical P=O double bond (average 1.500 ).

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trans-Dibromidobis(tri-p-tolyl-arsine)palladium(II).

Project description:In the title compound, [PdBr(2)(C(21)H(21)As)(2)], the Pd(II) ion, residing on a centre of symmetry, is coordinated by two As donor atoms [Pd-As = 2.4276?(2)?Å] and two Br anions [Pd-Br = 2.4194?(2)?Å] in a distorted square-planar geometry [Br-Pd-As = 87.786?(7)°]. A weak intra-molecular C-H?Br inter-action occurs. In the crystal structure, inter-molecular C-H?Br inter-actions are observed.

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trans-Carbonyl-chloridobis(tri-o-tolyl-phosphane-?P)rhodium(I).

Project description:In the title compound, [RhCl(C(21)H(21)P)(2)(CO)], the coordination geometry around the Rh(I) atom is slightly distorted square-planar with the phosphane ligands in trans positions with respect to each other. The chloride and carbonyl ligands show positional disorder, and the Rh(I) atom lies on a center of inversion. The effective cone angle ?(E) for the title compound is 169.0?(3)°. There are no significant inter-molecular inter-actions.

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