Acta Cryst. (2005). E61, m2604-m2606  [ doi:10.1107/S1600536805036603 ]

Bis{-N-[bis(hydroxymethyl)(oxidomethyl)methyl]glycinato}bis[dimethyltin(IV)] dioxane hemisolvate

X.-N. Fang, Q.-Y. Luo, X.-R. Zeng, Y. Sui and X.-F. Li

Abstract: The title complex, [Sn₂(CH₃)₄(C₆H₁₁NO₅)₂]·0.5C₄H₈O₂, comprises the centrosymmetric cyclic dimeric Sn^IV complex and an uncoordinated, partially occupied, centrosymmetric dioxane molecule. Each Sn^IV atom has a distorted octahedral six-coordinate configuration formed by the tridentate tricine ligand, one bridging O atom and two methyl groups. Within the cyclic dimer, the SnSn separation is 3.6574 (4) Å. All H atoms of the NH and OH groups are involved in intermolecular hydrogen bonds with the O atoms as acceptors. There are also important weak intermolecular C-HO hydrogen bonds, which link the molecules of the dimer and dioxane into an infinite three-dimensional network.

Online 16 November 2005

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