メチル(1-インデニル)ゲルマニウム(IV)化合物の^1H-及び^<13>C-NMRスペクトルの解析

概要

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The ^1H- and ^<13>C-NMR spectra of trimethyl(1-indenyl)germanium(IV) and dimethylbis(1-indenyl)germanium(IV) compounds were measured. Assignments of the chemical shifts for ^1H and ^<13>C in those compounds were obtained by means of hydrogen-hydrogen nuclear Overhauser effect spectroscopy (H-H NOESY), hydrogen-hydrogen correlation spectroscopy (H-H COSY) and carbon-hydrogen correlation spectroscopy (C-H COSY). The methyl proton and carbon signals for two stereoisomers (R, R and R, S) in the dimethylbis(1-indenyl)germanium(IV) compound were separated into three signals, with a relative signal intensity of 1:2:1; the other protons and carbons were separated, except for H_1, H_4, C_5, C_9, into two signals. These results were considered to show that the separated signals were caused by being magnetically nonequivalent in the two stereoisomers.
社団法人日本分析化学会の論文
2001-07-05