Relaxation study of strong hydrogen bond lifetime in gas phase |
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| Authors: | AU Voronin IV Gerasimov GS Denisov KS Rutkovski KG Tokhadze |
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| Institution: | Institute of Physics, Leningrad State University, Liningrad 198904. USSR |
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| Abstract: | Laser temperature jump and shock tube techniques have been used to measure the monomer-dimer relaxation time in the gas phase. With the former method, the lifetime of the cyclic dimer of acetic acid is found to increase from 3 μs at 315 K to 16 μs at 285 K. The activation energy has been determined to be 11.4 ± 0.8 kcal mol?1. A step-wise mechanism of dissociation is discussed. |
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