Two new organotin(IV)-phosphoryl complexes: crystal structure and Hirshfeld surface analysis

Abstract

in the asymmetric unit of (II) receives a second interaction from chlorine atom that, however, has negligible contribution portion in the total interactions (evaluated by fingerprint plot) in the crystal. On the other hand, this chlorine affects the geometry at the Sn atom and causes the open C-Sn-C bond angle (of 140.18(24)°). For both structures, the contribution of H…H contacts to the total interaction is decisive, being 59.1 % for (I) and 73.9 % for (II); so that the one distinct spike observed in each of the fingerprint plots is related to H…H contacts. The O…H (34.1 %) in (I) and the H…Cl (20.2 %) in (II) are the characteristic intermolecular contacts in the corresponding structures, monitoring as two pairs of H-bond spikes for O…H and two sharp spikes for H…Cl. Furthermore, the structure (I) does not show the C…H interaction, whereas (II) including unsaturated carbon atoms manifests such interaction (5.7 %) as two very short spikes.