Reuter Hans
Chemistry, Osnabrück University, Barbarastr. 7, 49069 Osnabrück, Germany.
Acta Crystallogr E Crystallogr Commun. 2022 May 20;78(Pt 6):633-637. doi: 10.1107/S205698902200514X. eCollection 2022 Jun 1.
The crystal structure of di--butyl-hydroxido-iodido-tin(IV), [Sn(CH)I(OH)] or BuSn(OH)I, consists of dimeric, centrosymmetric mol-ecules exhibiting the typical structural features of diorganotin(IV)-hydroxide-halides, Sn(OH). Two trigonal-bipyramidally coordinated tin(IV) atoms are bridged two hydroxyl groups, resulting in a planar, four-membered {Sn-O} ring of rhombic shape, with acute angles at tin, obtuse angles at oxygen and two different Sn-O distances depending whether the oxygen atom adopts an axial or equatorial position at the tin(IV) atom. In contrast to its fluorine, chlorine and bromine homologues, no hydrogen bonds between the OH group and the halide atom exist, confining the inter-molecular inter-actions to van der Waals forces.
二丁基氢氧化碘锡（IV），[Sn(CH)I(OH)] 或 BuSn(OH)I 的晶体结构由二聚体、中心对称分子组成，呈现出二有机锡（IV）氢氧化物卤化物 Sn(OH) 的典型结构特征。两个呈三角双锥配位的锡（IV）原子由两个羟基桥连，形成一个平面的菱形四元 {Sn - O} 环，在锡处为锐角，在氧处为钝角，并且根据氧原子在锡（IV）原子上处于轴向还是赤道位置存在两种不同的 Sn - O 距离。与其氟、氯和溴的同系物不同，OH 基团与卤原子之间不存在氢键，分子间相互作用仅限于范德华力。
