UEBER ANTIMON-HALTIGE HETEROCYCLEN VI. ARYL-SUBSTITUIERTE STIBOCANE, KORRELATION ZWISCHEN TRANSANNULAREN ABSTAENDEN UND SCHWINGUNGSDATEN

Article abstract of DOI:10.1016/0022-328X(87)85051-9

p-Nitrophenyl- and p-tolyl-oxadithia- and trithiastibocanes have been synthesized from the respective aryldichlorostibane and dithiole.The compounds have been characterised by means of 13C NMR and vibrational spectra (ν(SbS2) 350-320 cm^-1.The crystal structure of p-nitrophenyltrithiastibocane has been determined (R = 0.042).The eight-membered ring exhibits a boat-chair conformation.Single-bond distances of Sb-C and Sb-S (219, 244 and 245 pm), a 1,5-transannular Sb...S interaction (319 pm), and Sb...S and Sb...O (339 and 353 pm) intermolecular contacts, result in a six coordinated Sb^III (?-monocapped octahedral) species.The two additional Sb...S distances are in accordance with the vibrational (Sb...S) bands at 236 and 218 cm^-1.A logarithmic correlation between the transannular distances and the respective vibrations are discussed for a series of related trithiastibocanes.