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Metallocene basicity:I. Ring tilt and restricted rotation in protonated alkylferrocenes

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
40
Issue
1
Identifiers
DOI: 10.1016/s0022-328x(00)87006-0

Abstract

Abstract Protonation at the metal is shown to occur in boron trifluoride monohydrate solutions of various alkylferrocene compounds. The structure of the resulting ferrocenonium ion is shown to involve tilted rings such that free rotation of substituted rings is no longer possible. Compounds studied include: 1-methyl-, 1,1′-dimethyl-, 1-ethyl-, 1,1′-diethyl-, 1-methyl-1′-ethyl-, and 1-methyl-2,5-dideuterioferrocene.

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