The activation of the alkaline earth metals Ca, Sr and Ba in ammonia gas-saturated ethereal solvents at room temperature leads to rapid reaction with hexamethyldisilazide, pentamethylcyclopentadiene, triphenylsilanol, phenylacetylene, and triphenylmethane to yield the corresponding silamide, metallocene, siloxide, phenylacetylide and triphenylmethyl derivatives; ESR spectroscopic studies of the reaction system have detected the presence of solvated electrons.
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Drake et al. (1991) studied this question.
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