Journal article

Redetermination of the structure of diferrocenyl ketone at low temperature

N Bratych, K Hassall, J White

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | WILEY-BLACKWELL | Published : 2003

Abstract

The structure of diferrocenyl ketone, [Fe2(C5H 5)2(C11H8O)], was redetermined as part of our investigations of carbon-iron hyperconjugation. The title ketone lies on a twofold axis of symmetry. Lengthening of the carbonyl C = O bond [1.237 (3) Å compared with that expected for simple ketones, 1.210 Å] and slight slippage of the Fe atom towards the carbonyl carbon are consistent with the presence of strong hyperconjugation of the carbonyl group with the adjacent Fe - C bond. The structure was determined at 130 K. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.

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