Acta Cryst. (2002). E58, m441-m443  [ doi:10.1107/S1600536802012655 ]

Di-n-butylbis(2',4'-difluoro-4-hydroxybiphenyl-3-carboxylato-O,O')tin(IV)

K. Hans, M. Parvez, F. Ahmad, S. Ali, M. Mazhar and A. Munir

Abstract: The crystal structure of the title compound, [Sn(C₄H₉)₂(C₁₃H₇F₂O₃)₂], contains discrete molecules in which the central Sn atoms are asymmetrically coordinated to two carboxylates and by two C atoms of two n-butyl groups. The Sn-C distances are identical within 3 limits [mean Sn-C 2.118 (2) Å]. The Sn-O distances are significantly different from each other, with the mean value for the shorter distances being 2.098 (3) Å, while the longer Sn-O distances are 2.570 (3) and 2.686 (3) Å. The geometry around the Sn atom is highly distorted octahedral, that may be best described as one based on skew-trapezoidal planar geometry. The hydroxyl groups and the carboxylate O atoms are hydrogen bonded, forming six-membered rings and exhibit an S(6) pattern of hydrogen bonding.

Online 25 July 2002

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