Re: ORGLIST: Bond length and conformation

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From: Rzepa, Henry (h.rzepa$##$ic.ac.uk)
Date: Tue Sep 18 2001 - 07:43:11 EDT


>Does anyone know an experimental or theoretical example in which
>conformation has a significant influence on bond length, i.e., two
>conformations of the same molecule with different bond lengths ?
>
>Any information on this topic would be helpful.
>

Structure-Reactivity Studies of the Hydrolysis of
Oxazolinyldioxepin Derivatives, P. Camilleri, D. Munro, K. Weaver, D. J. Williams,
H. S. Rzepa and M. Z. Slawin, J. Chem. Soc. Perkin Trans. 2 , 1989, 1265 or 1929.

contains an example of two almost identical molecules that differ in their
conformation, inducing large bond length differences, which directly impact
upon their hydrolysis. There are of course numerous examples of this
"anomeric" effect.
--

Henry Rzepa. +44 (0)20 7594 5774 (Office) +44 (0870) 132-3747 (eFax)
Dept. Chemistry, Imperial College, London, SW7 2AY, UK.
http://www.ch.ic.ac.uk/rzepa/

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