Arsinocarbyne reactivity

Abstract

The reactivity of the tungsten diphenylarsinocarbyne [W(≡CAsPh2)(CO)2(Tp*)] (1; Tp* = hydrotris(dimethylpyrazolyl)borato) is described. The pyramidal arsenic oordinates to a selection of 5d metal centres, forming heterobi- or trimetallic complexes with...

Thiocarbonylphosphorane and arsorane ligands

“…The first arsoniocarbyne [W(CAsMePh 2 )(CO) 2 (Tp*)]OTf ( 6b ) was only recently obtained via methylation of the arsino carbyne [W(CAsPh 2 )(CO) 2 (Tp*)]. 24 This salt was found to react with sulfur to provide the thiocarbonylarsorane [W(η 2 -SCAsMePh 2 )(CO) 2 (Tp*)]OTf ( 7b ), IR and 13 C NMR data for which are comparable to those for 2b (other than the expected absence of 1 J PC and δ P ).…”