Redetermination of [(μ-OEt)₂{SnCl₃(EtOH)}₂]

The structure of neutral di-μ-ethanolato-bis[trichloro(ethanol)tin], [Sn₂Cl₆(C₂H₅O)₂(C₂H₆O)₂], has been redetermined and shows the dimer lying across a crystallographic inversion centre, giving an edge-shared bioctahedral structure, with the Sn atoms coordinated via an EtOH molecule, three terminal Cl⁻ ligands and two doubly bridging ethoxide ligands, resulting in a precisely planar Sn₂O₂ core, with bond distances Sn—Cl 2.3441 (11)–2.3947 (12), Sn—O(1) 2.164 (3), Sn—O(2) 2.092 (3) and Sn—O(2′) 2.084 (3) Å. The octahedral arrangement at each Sn atom is distorted due to hydrogen-bonding interactions between the axially coordinated EtOH molecule and an adjacent chloride ligand, H(1)...Cl(2′) and H(1′)...Cl(2) 2.14 Å.

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