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Electron paramagnetic resonance investigation of the complexes of grignard reagents with 9,10-phenanthrenesemiquinonate

✍ Scribed by Kai Pan; Kung-Lung Cheng; Tong-Ing Ho

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
353 KB
Volume
33
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The substituent effect on the proton hyperfine splitting constants (hfsc) of the charge‐transfer complexes of Grignard reagents (RMgBr, R = CH~3~, C~2~H~5~, CH~3~CHCH) with seven 3‐substituted 9,10‐phenanthroquinones is reported. A back‐donation bonding interaction between phenanthrenesemiquinonate anion radical π^*^ and the magnesium p orbital is revealed by the hfsc analysis.

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