O,S-Heterocyclic stannylenes: synthesis and reactivity

Abstract

Commercially available N-oxide (2-mercaptopyridine-N-oxide) is used as a ligand instead of an oxidizing agent to stabilize the compounds of main group elements in low-valent states. The isolated compounds [(C₅H₄NOS)₂Sn (2), (C₅H₄NOS)SnCl (3) and (C₅H₄NOS)GeCl (5)] are the first structurally characterized examples of O,S-heterocyclic stannylenes and germylenes with interesting bonding features. Further, the reaction of compound 2 with SbCl₃ afforded the rare dichlorodiantimony oxide [{(C₅H₄NOS)SbCl}₂O] (4) unprecedentedly.