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The existence of cations of the type R3Si+ in solution or in the solid state is still controversial. In the novel silyl cation in 2 the π ligands greatly help in stabilizing the cationic center. Compound 2 was obtained from decamethylsilicocene and catechol via the aryloxysilane 1 and was characterized unequivocally by 1H, 13C, and 29Si NMR spectroscopy, molecular weight determination, and conductance measurements.
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Jutzi et al. (1992) studied this question.
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