LAUSR

Abstract Multiple bonding involving the heavier main-group elements has been of great interest for a long time. This interest stems from the structure-bonding-reactivity aspects of these unusual compounds. Despite many initial failures, success in this area was finally achieved by the discovery of new synthetic paradigms which involved the kinetic stabilization of these compounds. Among this family of compounds, compounds containing two different elements are still quite sparse. This review focuses on compounds involving a multiple bond between boron and another heteroelement. The various synthetic methods used to prepare such compounds, their spectroscopic features including NMR parameters and where available, single-crystal X-ray structural data and theoretical studies, are discussed.