Pulsed time-resolved photoacoustic calorimetry

J. E. Rudzki, J. L. Goodman, K. S. Peters. Simultaneous Determination of Photoreaction Dynamics and Energetics Using Pulsed, Time-Resolved Photoacoustic Calorimetry. J.Am. Chem. Soc. 1985, 107, 7849-7854. 

Due to its thermal instability, the ring structure of trans-cycloheptene (39a) has only been characterized in trans-2-cycloheptenone (41) by its IR spectrum and by trapping experiments (47). To date, no direct structural evidence has been found for trans-cyclohexene (43a). It seems likely, however, that trans-l-phenylcyclohexene (43b) is the species detected by pulsed time-resolved photoacoustic calorimetry (cf. Section III. B) (48). 

Pulsed, time-resolved photoacoustic calorimetry employs a pulsed uv laser source to induce a photochemical reaction in the molecule of... 

Goodman, J.L., Peters, K.S., Misawa, H., and Caldwell, R.A., Use of pulsed time-resolved photoacoustic calorimetry to determine the strain energy of tra s-l-phenylcyclohexene and the energy of the relaxed 1-phenylcyclohexene triplet, /. Am. Chem. Soc., 108, 6803-6805,1986. 

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