Synthesis of a stable stibabismuthene; the first compound with an antimony–bismuth double bond

Abstract

The condensation reaction of an overcrowded dihydrostibine with dibromobismuthine using 1,8-diazabicyclo[5.4.0]undec-7-ene as a base afforded the first stable stibabismuthene, the formation of which was evidenced by UV–VIS and Raman spectra and its chemical reactivity.