ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Dialkyl- and Diarylphosphinocyclooctatetraenes: A New Class of Compounds of Relevance for Conformational Analysis and Coordination ChemistryMonosubstituted cyclooctatetraenes of the type C8H7PR2 (with R = C2H5, t-C4H9. and C6H5) have been prepared for the first time and characterized both by their chemical properties and spectra. The temperature dependence of the NMR spectra of the tert-butyl compounds C8H7P- (t-C4H9)2 and [C8H7P(t-C4H9)2CH3] I, which exhibit satisfactory thermal stabilities, leads to detailed insights into the dynamics of the migration of the double bonds, of the ring inversion, and of the rotation around the (ring-)C—P bond.
Notes:
Monosubstituierte Cyclooctatetraene des Typs C8H7PR2 mit R = C2H5, t-C4H9 und C6H5 wurden erstmals dargestellt und chemisch sowie spektroskopisch charakterisiert. Die Temperaturabhängigkeit der NMR-Spektren der thermisch genügend stabilen tert-Butylverbindungen C8H7P(t-C4H9)2 und [C8H7P(t-C4H9)2CH3] I liefern Einblicke in die Dynamik der Doppelbindungsverschiebung, der Ringinversion und der Rotation um die (Ring-)C — P-Bindung.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19791120112
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