1H and 13C NMR of substituted chromium tricarbonyl complexes; substituent effects and Cr(CO3) conformation
- 1 November 1980
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Chemistry
- Vol. 14 (5) , 426-430
- https://doi.org/10.1002/mrc.1270140520
Abstract
It is shown that 13C NMR is not suitable for determining the conformation of the Cr(CO)3 group in monosubstituted chromium tricarbonyl complexes. However,. 1H NMR can be used for such determinations if one takes substituent effects into account, whn necessary, and an appropriate relationship is proposed. The populations, xA, of the eclipsed conformer so obtained for various substituents increase with the π donor ability of the substituent. These results are consistent with X‐ray results and with Carter and Hoffmann's models.Keywords
This publication has 15 references indexed in Scilit:
- Conformational preferences and rotational barriers in polyene-ML3 transition metal complexesJournal of the American Chemical Society, 1977
- Substituent effects in π-(tricarbonylchromium)arenes : IV. 1H NMR Spectroscopy of substituted methyl π-(tricarbonylchromium)benzoatesJournal of Organometallic Chemistry, 1977
- The molecular structure of π-(tricarbonylchromium)-tolueneJournal of Organometallic Chemistry, 1977
- Substituent effects in π-(tricarbonylchromium)arenes: I. 1H NMR Spectroscopy of alkylsubstituted π-(tricarbonylchromium)benzenesJournal of Organometallic Chemistry, 1976
- The stereochemistry of organometallic compounds. XIII. The 13C N.M.R. spectra of some Tricarbonyl(arene)chromium compoundsAustralian Journal of Chemistry, 1975
- 13C NMR low temperature study of the rotation around the chromiumarene bondJournal of Organometallic Chemistry, 1974
- Studies of arenetricarbonylchromium derivatives by gas-liquid chromatography and nuclear magnetic resonanceAnalytical Chemistry, 1971
- Complexes of metals with aromatic systemsJournal of Organometallic Chemistry, 1966
- The Structure of Hexamethylbenzenechromium Tricarbonyl with Comments on the Dibenzenechromium StructureInorganic Chemistry, 1965
- X-RAY DETERMINATION OF THE STRUCTURE OF TRICARBONYLCHROMIUM-BENZENEJournal of the American Chemical Society, 1959