Reprinted from Organometallics, in press.

© American Chemical Society, 1996.

Nanosecond Laser Flash Photolysis Studies of the Photochemistry of Dimesitylgermylene Precursors.

Nicholas P. Toltl, William J. Leigh,* Gerlinde M. Kollegger, William G. Stibbs and Kim M. Baines*

Contribution from the Department of Chemistry, McMaster University, Hamilton, Ontario, Canada L8S 4M1
and
the Department of Chemistry, University of Western Ontario, London, Ontario, Canada N6A 5B7

Abstract: The absolute rate constants for quenching of the transient absorption assigned to dimesitylgermylene with oxygen, triethylsilane, ethanol and 1-bromohexane have been determined by nanosecond laser flash photolysis to be (7.3±0.8) × 10⁶, (1.1±0.1) × 10⁵, < 10³, and (5.4±0.5) × 10⁵ M¯¹s¯¹, respectively. The rate constants are compared to those obtained for the quenching of dimethyl-, diphenylgermylene and dimesitylsilylene.