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Scheldt et al.bridging carbonyl ligands is observed. This aspect is being investigated further.It is anticipated that the study of "A-frame" complexes and their chemistries with small unsaturated molecules will, in addition to yielding a great deal of interesting and varied chemistry, be of tremendous value in furthering the understanding of catalytic processes involving multicentered metal catalysts.

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The two photon laser photolysis of pyrene in alkanes, benzene and methanol have been studied. Initial excitation of pyrene leads to the first excited singlet state, which subsequently absorbs a second photon leading to photoionization. Detection of the photoionization level at 10−9 sec time intervals indicates a very small photoionization yield in alkanes compared to alcohols. It is shown that this is due to a rapid initial neutralization of the photoproduced ions in the alkane, and that the initial yields of two photon photoionization are comparable in alkanes and alcohols. The lifetimes of the ion neutralization are 6.7×10−10 sec in methanol, 2×10−12 sec in iso-octane, 2×10−11 sec in hexane and 6.7×10−12 sec in benzene.

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