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-1 s-1, respectively. The rate constants are compared to those obtained for the quenching of dimethyl- and diphenylgermylene and dimesitylsilylene.

In the reaction between dichlorodimethylsilane and sodium potassium bismuthide, which was prepared from the elements in dimethoxyethane, the previously unknown cage Bi2(SiMe2)5 is formed. It was isolated by crystallization from heptane, and its molecular structure was confirmed by X-ray analysis.

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