Octakis(2-chlorobenzyl)di-μ2-hydroxido-di-μ3-oxido-bis(2-phenylacetato)tetratin(IV)

Wei-Bing Peng,Xianhe Zhao,Guo-Qiang Li,Handong Yin

doi:10.1107/s1600536810012559

Wei-Bing Peng, Xianhe Zhao + Show 2 more

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https://doi.org/10.1107/s1600536810012559

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Abstract

The asymmetric unit of the title compound, [Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2], comprises one-half of the centrosymmetric tin(IV) complex. μ3-Oxide and μ2-hydroxide bridges link the four five-coordinate SnIV 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 μ3-oxide anions and a μ2-hydroxide ligand, together with two 2-chlorobenzyl groups. The exocyclic Sn atoms each carry a monodentate phenylacetate ligand, two 2-chlorobenzyl groups, and μ3-oxide and μ2-hydroxide ligands. Both types of Sn atoms adopt a distorted trigonal–bipyramidal coordination geometry. The molecular conformation is stabilized by intramolecular O—H⋯O interactions involving the μ2-hydroxide ligands and the C=O group of the phenylacetate ligand.

Highlights

The asymmetric unit of the title compound, [Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2], comprises one-half of the centrosymmetric tin(IV) complex. 3-Oxide and 2-hydroxide bridges link the four five-coordinate SnIV atoms to generate three fused four-membered Sn—O—Sn—O rings in a ladder-like structure
The molecular conformation is stabilized by intramolecular O—H O interactions involving the 2hydroxide ligands and the C O group of the phenylacetate ligand
As a continuation of our study of organotin compounds, we present here the synthesis and crystal structure of the title compound (I)

Summary

Introduction

The asymmetric unit of the title compound, [Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2], comprises one-half of the centrosymmetric tin(IV) complex. 3-Oxide and 2-hydroxide bridges link the four five-coordinate SnIV atoms to generate three fused four-membered Sn—O—Sn—O rings in a ladder-like structure. Absorption correction: multi-scan (SADABS; Sheldrick, 1996) H-atom parameters constrained max = 1.18 e Å3 Key indicators: single-crystal X-ray study; T = 298 K; mean (C–C) = 0.013 Å; R factor = 0.040; wR factor = 0.121; data-to-parameter ratio = 15.2. The asymmetric unit of the title compound, [Sn4(C7H6Cl)8(C8H7O2)2O2(OH)2], comprises one-half of the centrosymmetric tin(IV) complex.

Results

Conclusion