The unperturbed ν 0 (CN) stretching frequencies of CH 3 CN in 18 complexes with Lewis acids are correlated with ν (CN) frequencies in cobalticyanides and with cation parameters which measure σ and π interactions. The results indicate that the nature of the interaction is predominantly of the σ donor-acceptor type wib no detectable π back-donation from the cation to the CN ligand. © 1992.
|Original language||American English|
|Number of pages||4|
|Journal||Spectrochimica Acta Part A: Molecular Spectroscopy|
|State||Published - 1 Jan 1993|