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Laser Flash Photolysis Studies of Triplet Carbenes

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Abstract

In the last 12 years, flash photolysis has taken its place among the standard tools which can be brought to bear on the study of triplet carbenes. The seminal experiment was performed by Closs and Rabinow in 1976.(1) Using a very inexpensive and even primitive conventional flash lamp system, they obtained the first absolute rate constant for a carbene reaction in solution. Subsequent investigators using equipment that was much more sophisticated and about 50 to 100 times more expensive than that available to Closs and Rabinow have been able to confirm the results of their studies of diphenyl-carbene (DPC). More seriously, though, DPC is among the least reactive of all carbenes and about the only one sufficiently long-lived to be detected in a conventional flash photolysis experiment. It would not have been possible to study fluorenylidene or the naphthylcarbenes without nanosecond (ns) pulsed lasers. Before extolling the virtues of laser flash photolysis (LFP), another debt must first be acknowledged.

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Platz, M.S., Maloney, V.M. (1990). Laser Flash Photolysis Studies of Triplet Carbenes. In: Platz, M.S. (eds) Kinetics and Spectroscopy of Carbenes and Biradicals. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-3707-0_8

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