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Nuclear Magnetic Resonance Spectroscopy. Studies of 1,1,4,4-Tetrafluoro- 1,3-alkadienes

Servis, Kenneth L. and Roberts, John D. (1965) Nuclear Magnetic Resonance Spectroscopy. Studies of 1,1,4,4-Tetrafluoro- 1,3-alkadienes. Journal of the American Chemical Society, 87 (6). pp. 1339-1344. ISSN 0002-7863. doi:10.1021/ja01084a032.

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1,1,4,4-Tetrafuoro-1,3-butadiene is indicated by dipole moment studies to exist in the s-trans conformation. The ^(19)F-^(19)F spin-spin coupling constants for this compound are surprisingly similar to those of bis-4,5-(difluoromethylene)cyclohexene and perfluoro-1,2-dimethylenecyclobutane, both of which substances have their double bonds held in s-cis configurations. The results are related to the mechanism of transmission of fluorine-fluorine spin-spin interactions and are inconsistent with a predominance of a "through-space" mechanism of coupling.

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Additional Information:© 1965 American Chemical Society. Received November 20, 1964. Supported in part by the Office of Naval Research and the National Science Foundation.
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Office of Naval Research (ONR)UNSPECIFIED
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Caltech Gates and Crellin Laboratories of Chemistry3166
Issue or Number:6
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Official Citation:Nuclear Magnetic Resonance Spectroscopy. Studies of 1,1,4,4-Tetrafluoro-1,3-alkadienes Kenneth L. Servis and John D. Roberts Journal of the American Chemical Society 1965 87 (6), 1339-1344 DOI: 10.1021/ja01084a032
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ID Code:61197
Deposited On:16 Oct 2015 17:55
Last Modified:10 Nov 2021 22:45

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