197Au Mössbauer Spectroscopic Study of Binuclear Cycloaurated Complexes Containing Bridging (2-Diphenylarsino-n-methyl)phenyl (n = 5 and 6)

Abstract

197Au Mössbauer spectra have been measured on a series of binuclear gold complexes containing a bridging As–C ligand. The plot of quadrupole splitting (Q.S.) against isomer shift (I.S.) indicates that the gold–arsenic bond in these complexes is less covalent than the gold–phosphorus bond in analogous P–C complexes.

Alkynyl derivatives of gold complexes containing C6H3-5-Me-2-EPh2 (E = P, As) ligands

“…The crystallographic data have been deposited at the Cambridge Crystallographic Data Center [CCDC 755 637 (4), 755 638 (6), 755 639 (1) and 755 640 (5)]. The gold-197 Mössbauer spectrum of 9 was acquired at Toho University, Japan, on a Wissel Mössbauer spectrometer system using previously reported experimental conditions [25]. The I.S.…”