TRANSITION-METAL MONOSILONYLS [M(SiO), M = Cu, Ag, Au, V]: ESR AT 4 K
Loading...
Date
1996
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
M(SiO) molecules were prepared by laser vaporization of the metal and solid SiO during condensation of neon and/or argon matrices at 2-4 K. ESR (9 GHz) spectra were measured and the analyses compared with the known results for the corresponding monocarbonyls. Cu and $Ag^{a}$ formed linear $^{2}\Sigma$ molecules, but Au(SiO) is a non-linear S = 1/2 molecule, in contrast to linear $Au(CO)^{b}$. V(SiO) has a $^{4}\Sigma$ ground state as compared to $^{6}\Sigma$ in the $monocarbonyl^{c}$. Other first-row transition-metals did not form silonyls visible via ESR.
Description
$^{a}$T. Mehner, H. Schn\""{o}ckel, M.J. Almond, and A.J. Downs, J. Chem. Soc., Chem. Commun. 117 (1988); J.H.B. Chernier, J.A. Howard, H.A. Joly, B. Mile, and P.L. Timms, ibid, 581 (1990). $^{b}$ P.H. Kasai and P.M. Jones, J. Am. Chem. Soc. 107, 6385 (1985). $^{c}$ R.J. Van Zee, S.B.H. Bach, and W. Weltner, JR., J. Phys. Chem. 90, 583 (1986).
Author Institution: Department of Chemistry, University of Florida
Author Institution: Department of Chemistry, University of Florida