Analysis of the high-resolution infrared spectrum of cyclopropane |
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Authors: | Tony Masiello Arthur Maki |
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Institution: | a Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K8-88, Richland, WA 99352, USA b Department of Chemistry/Biochemistry, California State University East Bay, Hayward, CA 94542, USA c 15012 24th Ave. S.E., Mill Creek, WA 98012-5718, USA |
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Abstract: | The high-resolution infrared spectrum of cyclopropane (C3H6) has been measured from 100 cm−1 to 2200 cm−1. In that region we have identified 24 absorption bands attributed to six fundamental bands, five combination bands, three hot bands and 10 difference bands. Long pathlength spectra, up to 32 m, facilitated the identification and analysis of many previously unstudied infrared inactive, and Raman and infrared inactive vibrational states, including direct access to two forbidden fundamental states, ν4 and ν14. An improved set of constants for the ground vibrational state as well as for the fundamental vibrations ν7, ν9, ν10, ν11 are also reported. The spectral resolution of the measurements varied from 0.002 cm−1 to 0.004 cm−1. |
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Keywords: | Cyclopropane Spectroscopy Infrared Difference band High-resolution |
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