Infrared Spectra of Crystalline Cyclopentane and Cyclopentane-d10

Schettino, V.; Marzocchi, M. P.; Califano, S.

doi:10.1063/1.1671944

Infrared Spectra of Crystalline Cyclopentane and Cyclopentane-d₁₀

Journal Article · Sun Dec 14 23:00:00 EST 1969 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.1671944· OSTI ID:4725224

Schettino, V. ^[1]; Marzocchi, M. P. ^[1]; Califano, S. ^[1]

Univ. degli Studi di Firenze (Italy)

Infrared spectra of crystalline cyclopentane and cyclopentane-d₁₀ have been measured at different temperatures between 4000 and 200 cm^-1. Spectroscopic evidence shows that form I (–120°C) and form II (–140°C) have the same degree of disorder as the liquid. In the ordered crystal form III (–180°C) the molecule has a rigid bent conformation. By the mixed-crystal technique the nature of the observed splittings has been established. This has permitted us to show that the site symmetry of the molecule in form III is $$C_1$$, and packing concepts together with the spectroscopic data led to the choice of $$C^5_{2h}$$ as the possible space group of the lowest-temperature form.

Research Organization:: Universita di Firenze, (Italy). Laboratorio di Spettroscopia Molecolare

Sponsoring Organization:: US Atomic Energy Commission (AEC); Italian Consiglio Nazionale delle Ricerche

NSA Number:: NSA-24-009295

OSTI ID:: 4725224

Journal Information:: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 12 Vol. 51; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: Italy

Language:: English

References (11)

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The pure rotational Raman spectrum of cyclopentane-d0 and cyclopentane-d10 Tanner, Kurt; Weber, Alfons Journal of Molecular Spectroscopy, Vol. 10, Issue 1-6 https://doi.org/10.1016/0022-2852(63)90184-X	journal	January 1963
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The Infra-Red and Raman Spectra of Cyclopentane, Cyclopentane-d1, and Cyclopentane-d10 Miller, Foil A.; Inskeep, Richard G. The Journal of Chemical Physics, Vol. 18, Issue 12 https://doi.org/10.1063/1.1747535	journal	December 1950
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