A reinvestigation has been made of the authors' earlier work on the reaction of propylene with mercury (3P1) atoms at 30°C in a static system, with special concentration on the products of the reaction.The mechanismC3H6+Hg(3P1)→C3H6*+Hg(1S0)C3H6*+C3H6→2C3H6C3H6*→C3H5+Hwhich was proposed in the earlier work has been confirmed. Some twenty‐two different products were identified at low pressures, all of which, with the exception of acetylene, can be explained as the result of interactions of the free radicals present.The quantum yield of the reaction reaches a maximum of 0.18 at 6.5 mm, and falls to 0.04 at 72 mm.
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