Direct, time resolved measurements of absolute rate constants for reaction of SiH2(1A1) with C2H2 and C2D2 have revealed a pressure (and temperature) dependent isotope effect characteristic of an association process yielding an intermediate (silirene) which undergoes, amongst other reactions, a degenerate isotopic scrambling process.
R. Becerra, H. M. Frey, B. P. Masonb and R. Walsh, J. Chem. Soc., Chem. Commun., 1993, 1050 DOI: 10.1039/C39930001050
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