Coordination of Arsine Ligands as a General Synthetic Approach to Rare Examples of Arsenic-Antimony and Arsenic-Bismuth Bonds

摘要

In spite of the similar electronegativities of the heavy pnictogen elements (As 2.18; Sb 2.05; Bi 2.02), examples of compounds containing As-Sb or As-Bi bonds are very rare. The limited data available for such compounds include Mossbauer and ~1H NMR spectroscopy for derivatives of R_2Pn-Pn'R'_2,vibrationalspectroscopy and mass spectrometry for Pn-Pn' diatomics and cyclo-pnictines, XPS for binary arsenides, melting points for a range of P_3Pn-Pn'R'_3 adducts, and crystallographic data for two compounds containing an As-Sb bond and for one compound containing an As-Bi bond.