Structural chemistry of organotin carboxylates. I. The crystal structure of di-n-butylbis(thiophenoxyacetato)tin(IV): nBu2Sn(O2CCH2SC6H5)2

Article abstract of DOI:10.1016/0022-328X(89)85215-5

A crystal structure study of ⁿBu2Sn(O2CCH2SC6H5)2 reveals the compound to be monomeric with the tin atom situated on a crystallographic 2-fold axis in a skew-trapezoidal bipyramidal geometry.The basal plane is defined by two asymmetrically chelating carboxylate groups; Sn-O 2.134(4) and 2.559(5) Angstroem and the ⁿBu-Sn-ⁿBu angle is 140.7(2) deg.The sulphur atoms do not participate in any significant interactions to the tin atom.Crystals are monoclinic with space group C2 and unit cell dimensions a 18.668(6), b 15.761(6), c 5.106(5) Angstroem, β 117.55(5) deg; Z=2.The structure was refined by a full-matrix least-squares procedure to final R=0.034 and R_W=0.033 for 1294 reflections with I>/=2.5?(I).