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One-Bond 13C, 13C-Spin Coupling in η4-, η3- and η2-Olefin Transition Metal Complexes

✍ Scribed by Susanne Zobl-Ruh; Wolfgang von Philipsborn

Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
310 KB
Volume
64
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

One‐bond ^13^C, ^13^C‐spin‐coupling constants have been measured, with natural isotope abundance, in η^4^‐diene, η^3^‐allyl and η^2^‐ene transition‐metal carbonyl complexes. Typical values of ^1^J(C,C) are given for Fe‐, Ru‐ and Os‐complexes with the three types of olefinic ligands. The effects of substituents and the structural significance of the C,C‐coupling constants are discussed.

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13C CP-MAS NMR spectra and fluxional behaviour of [M2(ηHCCCMe2)(CO)4(ηC5H5)2]+ [BF4]− (M = Mo, W) complexes in the solid state
✍ M. V. Galakhov; V. I. Bakhmutov; I. V. Barinov 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 180 KB

## Abstract Internal rotation about the C‐2–C‐3 bond was observed in the ^13^C CP‐MAS NMR spectra of the solid complexes [M~2~(ηHC^1^C^2^C^3^Me~2~)(CO)~4~(ηC~5~H~5~)~2~]^+^ [BF~4~]^−^ where M = Mo or W.