Structure of (η5-C5Me5)2LuCl(C4H8O) and exchange of co-ordinated solvent
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 6,p. 460-461
- https://doi.org/10.1039/c39870000460
Abstract
Reaction of LuCl3 and 2NaC5Me5 in tetrahydrofuran (THF) affords crystals of (C5Me5)2LuCl(THF), an X-ray structure determination showing the Lu atom to be in a distorted tetrahedral array in which the Lu–Cl bond length is 2.53 Å, the average Lu–C(η) bond length is 2.63 Å, and the ring–Lu–ring angle is 137°; variable temperature n.m.r. spectroscopy shows a dynamic equilibrium between co-ordinated and free THF with a barrier to exchange, ΔG‡, of about 54 kJ mol–1 at 0 °C.Keywords
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