Vibrational Spectrum and Structure of Metal-Cyanide Complexes in the Solid State. II. KAu(CN)2

Publisher Website
Google Scholar
Abstract
The infrared spectra of solid KAu(CN)2 and the mono‐ and di‐substituted C13 and N15 species have been observed. The seven fundamental vibrations of the linear, symmetrical Au(CN)2 — ion have been assigned at 2160, 452, 2141, 427, 305, 368, and 100 cm—1. From the observed frequencies of the normal and isotopic species, force constants were calculated for two possible structures: N–C–Au–C–N and C–N–Au–N–C. It is shown that the latter structure gives unreasonably large values for the CN stretching force constant and the CN, AuN interaction constant, and that therefore the cyanides are most likely bound to the gold through the carbon atoms.

This publication has 5 references indexed in Scilit: