Selected topics in the matrix photochemistry of nitrenes, carbenes, and excited Triplet states Chapter uri icon

abstract

  • Mechanistic chemists have long appreciated that short lived, high energy species such as nitrenes, carbenes, and excited triplet states play a crucial role in the photochemistry of azides1, diazo compounds2, diazirines3 and various π electronic systems.4 One of the goals of physical organic chemistry is to characterize transient species using the same spectroscopic tools available to chemists studying kinetically stable materials. In general this can be accomplished in either of two ways; by using nano or picosecond time resolved spectroscopy, or by generating the species of interest at cryogenic temperatures in a rigid inert medium. In the past decade there 368has been a great deal of progress in time resolved spectroscopy and it is now possible to obtain UV-VIS absorption5, fluorescence6, infrared7 and magnetic resonance8 spectra of species with very short lifetimes in solution. © 1991 by MARCEL DEKKER, INC. All rights reserved.

publication date

  • 2017-01-01