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Di-?(2)-methano-lato-bis-(?-4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazolido-?N:N)di-?(3)-oxido-tetra-kis-[dimethyl-tin(IV)].

ABSTRACT: The title distannoxane, [Sn(4)(CH(3))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], lies about a center of inversion; the tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which the two crystallographically independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N = 2.239?(2)?Å] compared with the neutral N atom that binds to the central Sn atom [Sn? N = 2.757?(3)?Å]. The oxide O atom is three-coordinate whereas the methano-late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C(3)SnNO trigonal-bipyramidal environment, whereas the central Sn atom is six-coordinate in a C(2)SnNO(3) skew-trapezoidal-bipyramidal geometry.

SUBMITTER: Najafi E

PROVIDER: S-EPMC3051439 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Di-μ(2)-methano-lato-bis-(μ-4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazolido-κN:N)di-μ(3)-oxido-tetra-kis-[dimethyl-tin(IV)].

Najafi Ezzatollah E Amini Mostafa M MM Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20110122 Pt 2

The title distannoxane, [Sn(4)(CH(3))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], lies about a center of inversion; the tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which the two crystallographically independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N = 2.239 (2) Å] compared with the neutral N atom that binds to the central Sn atom [Sn← N = 2.757 (3) Å] ...[more]

PMID: 21522897

Similar Datasets

Di-?(2)-methano-lato-bis-(?-4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazolido-?N:N)di-?(3)-oxido-tetra-kis-[dibutyltin(IV)].

Project description:The asymmetric unit of the title distannoxane, [Sn(4)(C(4)H(9))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], contains two mol-ecules, each of which lies about an individual center of inversion. The tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which two independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N = 2.262?(3), 2.254?(3)?Å] compared with the neutral N atom that binds to the central Sn atom[SnN = 2.617?(4); 2.830?(3)?Å]. The oxide O atom is three-coordinate whereas the methano-late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C(3)SnNO trigonal-bipyramidal environment, whereas the central Sn atom is six-coordinate in a C(2)SnNO(3) skew-trapezoidal-bipyramidal geometry.

| S-EPMC3051783 | biostudies-literature

Di-?2-ethano-lato-octa-methyl-bis-(?-4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazol-1-ido-?(2) N (1):N (2))di-?3-oxido-tetra-tin(IV).

Project description:The tetra-nuclear title compound, [Sn4(CH3)8(C2H5O)2O2(C3H4N3S)2], lies about a center of inversion; the mol-ecule features a three-rung-staircase Sn4O4 core in which two Sn(IV) atoms are bridged by the 4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal Sn(IV) atom at a shorter distance [Sn-N = 2.240?(3)?Å] compared with the neutral N atom that binds to the central Sn(IV) atom [Sn? N = 2.641?(3)?Å]. The terminal Sn(IV) atom is five-coordinate in a cis-C2SnNO2 trigonal-bipyramidal geometry [C-Sn-C = 127.5?(2)°], whereas the central Sn(IV) atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C-Sn-C = 145.0?(2)°].

| S-EPMC3588786 | biostudies-literature

Di-?2-isopropano-lato-octa-methyl-bis-(?-4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazol-1-ido-?(2) N (1):N (2))di-?3-oxido-tetra-tin(IV).

Project description:The tetra-nuclear title compound, [Sn4(CH3)8(C3H7O)2O2(C3H4N3S)2], lies about a center of inversion; the mol-ecule features a three-rung-staircase Sn4O4 core in which two Sn(IV) atoms are bridged by the 4-methyl-5-sulfanyl-idene-4,5-dihydro-1H-1,2,4-triazol-1-ide group. The negatively charged N atom of the group binds to the terminal Sn(IV) atom at a shorter distance [Sn-N = 2.236?(2)?Å] compared with the neutral N atom that binds to the central Sn(IV) atom [Sn? N = 2.805?(2)?Å]. The terminal Sn(IV) atom is five-coordinate in a cis-C2SnNO2 trigonal-bipyramidal geometry [C-Sn-C = 136.4?(1)°], whereas the central Sn(IV) atom is six-coordinate in a C2SnNO3 skew-trazepoidal bipyramidal geometry [C-Sn-C = 145.4?(1)°]. The C atoms of the isopropoxy group are disordered over two positions in a 0.591?(7):0.409?(7) ratio.

| S-EPMC3588787 | biostudies-literature

Dichloridoocta-kis(2-chloro-benz-yl)di-?(2)-hydroxido-di-?(3)-oxido-tetra-tin(IV).

Project description:The title tetra-nuclear Sn(IV) compound, [Sn(4)(C(7)H(6)Cl)(8)Cl(2)O(2)(OH)(2)], has site symmetry . Two O(2-) and two OH(-) anions bridge four Sn(IV) cations to form the tetra-nuclear compound. The two independent Sn(IV) cations assume SnO(3)C(2) and SnO(2)C(2)Cl distorted trigonal-bipyramidal coordination geometries. Intra-molecular O-H?Cl hydrogen bonding is present in the structure. One Cl atom of a chloro-benzyl ligand is disordered over two sites with an occupancy ratio of 0.693?(2):0.307?(2).

| S-EPMC2971409 | biostudies-literature

Dichloridoocta-kis(4-chloro-benz-yl)di-?(2)-hydroxido-di-?(3)-oxido-tetra-tin(IV) toluene solvate.

Project description:The title stannoxane is a toluene-solvated dimer, [Sn(4)(C(7)H(6)Cl)(8)Cl(2)O(2)(OH)(2)]·C(7)H(8), the tetra-nuclear mol-ecule lying across a center of inversion. The Sn(4)O(4) framework, whose two independent Sn atoms show trigonal bipyramidal coordination, is essentially planar (r.m.s deviation = 0.02?Å). One of the two chloro-benzyl groups of the chloridodiorganyltin unit is disordered over two positions with the chloro-phenyl residue refined over two positions in a 50:50 ratio. The solvent mol-ecule is disordered about a twofold axis.

| S-EPMC2977629 | biostudies-literature

Octa-kis(2-chloro-benz-yl)di-?(2)-hydroxido-di-?(3)-oxido-bis-(2-phenyl-acetato)tetra-tin(IV).

Project description:The asymmetric unit of the title compound, [Sn(4)(C(7)H(6)Cl)(8)(C(8)H(7)O(2))(2)O(2)(OH)(2)], comprises one-half of the centrosymmetric tin(IV) complex. ?(3)-Oxide and ?(2)-hydroxide bridges link the four five-coordinate Sn(IV) atoms to generate three fused four-membered Sn-O-Sn-O rings in a ladder-like structure. The two endocyclic Sn atoms each bind to two ?(3)-oxide anions and a ?(2)-hydroxide ligand, together with two 2-chloro-benzyl groups. The exocyclic Sn atoms each carry a monodentate phenyl-acetate ligand, two 2-chloro-benzyl groups, and ?(3)-oxide and ?(2)-hydroxide ligands. Both types of Sn atoms adopt a distorted trigonal-bipyramidal coordination geometry. The mol-ecular conformation is stabilized by intra-molecular O-H?O inter-actions involving the ?(2)-hydroxide ligands and the C=O group of the phenyl-acetate ligand.

| S-EPMC2979133 | biostudies-literature

Di-?(3)-oxido-bis-(?(2)-quinaldato-?O:O)-bis-(quinaldato-?N,O)tetra-kis[di-n-butyl-tin(IV)].

Project description:The title tetra-nuclear Sn(IV) complex, [Sn(4)(C(4)H(9))(8)(C(10)H(6)NO(2))(4)O(2)], is a cluster built up by inversion symmetry around the central Sn(2)O(2) ring. The coordination geometries of the Sn atoms involved can be classified into two types: the five-coordinate Sn atoms of the central Sn(2)O(2) core have a trigonal-bipyramidal geometry, with axial positions occupied by a ?(3)-O atom and a ?(2)-O atom belonging to the nonchelating quinaldate ligand. The peripheral Sn atoms are six-coordinate, with a distorted octa-hedral geometry. The methyl group of an n-butyl ligand is disordered over two sites, with occupancies of 0.643?(12) and 0.357?(12).

| S-EPMC2915128 | biostudies-literature

Tetra-?(3)-methano-lato-tetra-kis-[(2-formyl-6-meth-oxy-phenolato)methano-lnickel(II)].

Project description:The molecule of the title compound, [Ni(4)(CH(3)O)(4)(C(8)H(7)O(3))(4)(CH(3)OH)(4)], has S(4) symmetry. Each of the four Ni(II) atoms occupies every other corner of a cube, with the alternate corners occupied by ?(3)-methano-late bridging groups linking to three Ni(II) atoms. Each Ni(II) atom is in an O(6) octa-hedral coordination environment formed by three O atoms from three ?(3)-methano-late groups, one from methanol, and two others from a bidentate 2-formyl-6-meth-oxy-phenolate ligand. The Ni-O bond distances range from 2.0020?(14) to 2.0938?(14)?Å, the cis bond angles range from 81.74?(6) to 97.63°, and the trans bond angles range from 168.76?(5) to 175.22?(6)°. There are bifurcated hydrogen-bonding inter-actions between the coordinated methanol OH groups and both the phenolic and meth-oxy O atoms of an adjoining 2-formyl-6-meth-oxy-phenolate moiety. In addition, there are weak inter-molecular C-H?O inter-actions involving the meth-oxy O atoms.

| S-EPMC3009121 | biostudies-literature

Crystal structure of tetrakis-(acetyl-acetonato)di-chloridodi-μ3-methano-lato-tetra-μ2-methano-lato-tetra-iron(III).

Project description:The title complex, [Fe4(C5H7O2)4(CH3O)6Cl2] or [Fe4(acac)4(μ2-OMe)4(μ3-OMe)2Cl2] (acac = acetyl-acetonate), crystallizes in the ortho-rhom-bic Pbca space group with one half of the mol-ecule per asymmetric unit, the other half being completed by inversion symmetry. The core structure consists of a face-sharing double pseudo-cubane entity with two opposite corners missing. Weak C-H⋯Cl inter-molecular inter-actions result in a two-dimensional layered structure parallel to the ac plane.

| S-EPMC4571370 | biostudies-literature

Tetra-aqua-bis(3,5-di-4-pyridyl-1H-1,2,4-triazolido)cadmium(II) dihydrate.

Project description:In the title compound, [Cd(C(12)H(8)N(5))(2)(H(2)O)(4)]·2H(2)O, the Cd(II) atom is located on an inversion center and is coordinated by the two N atoms [Cd-N = 2.278?(2)?Å] and four O atoms [Cd-O = 2.304?(2)-2.322?(2)?Å] in a distorted octa-hedral geometry. Inter-molecular O-H?O and O-H?N hydrogen bonds link the complex into a three-dimensional supra-molecular framework.

| S-EPMC2977399 | biostudies-literature

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