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

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 3σ 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.