Acta Cryst. (2003). E59, m894-m896  [ doi:10.1107/S1600536803019858 ]

Bis[3-(4-methylcoumarinyl-7-oxy)--methoxy-1,1,3,3-tetramethyldistannoxane]

Y. Zhang, L. E. Khoo, T. Y. Tou and S. W. Ng

Abstract: Centrosymmeric bis[3-(4-methylcoumarinyl-7-oxy)--methoxy-1,1,3,3-tetramethyldistannoxane], [-OCH₃-(CH₃)₂(C₁₀H₇O₃)Sn-O-Sn(CH₃)₂]₂, possesses a central rhombic Sn'₂O'₂ core, which is flanked on opposite sides by the Sn'O'Sn''O'' unit (where O' is the distannoxanyl O atom and O'' is the methoxyl O atom). The two Sn atoms are both five-coordinate, in a cis-C₂SnO₃ trigonal bipyramidal geometry [C-Sn-C 130.6 (4) and 133.3 (4)°].

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