Low-frequency vibrational spectra and ring puckering of cyclopentene-d$sub 8$

Journal Article · Sat Nov 01 04:00:00 EST 1975 · J. Chem. Phys., v. 63, no. 9, pp. 3727-3730

OSTI ID:4142883

Villarreal, J R; Bauman, L E; Laane, J; Harris, W C; Bush, S F

More than 25 ring-puckering transitions have been observed in the vapor- phase Raman and far-infrared spectra of cyclopentene-d$sub 8$. The ring- puckering potential energy function in reduced form was determined to be V=18.20(Z$sup 4$-6.88 Z$sup 2$) cm$sup -1$, which represents a barrier to inversion of 215 cm$sup -1$ (0.61 kcal/mole). The barrier differs from that of the undeuterated cyclopentene by 17 cm$sup -1$ owing to mixing of other motions (presumably CH$sub 2$ rockings). The equilibrium value of the molecule is calculated to have a dihedral angle of 26$sup 0$. (AIP)

• Research Organization: Department of Chemistry, Texas A and M University, College Station, Texas 77843
• NSA Number: NSA-33-008887
• OSTI ID: 4142883
• Journal Information: J. Chem. Phys., v. 63, no. 9, pp. 3727-3730, Journal Name: J. Chem. Phys., v. 63, no. 9, pp. 3727-3730; ISSN JCPSA
• Country of Publication: United States
• Language: English

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*CYCLOALKENES-- RAMAN SPECTRA
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