Preferential attack of the terminal hydrogen in (μ-H)Os3(CO)11H by the (CF3)2NO radical and X-ray structure of {(μ-H)Os3(CO)11}[ON(CF3)2]

Abstract

Bis(trifluoromethyl)nitroxyl radical (CF3)2NO, has been shown to preferentially attack the terminal hydrogen from the (μ-H)Os3(CO)11H cluster to give the derivative (μ-H)Os3(CO)11[(CF3)2NO)] 1 together with bis (trifluoromethyl)hydroxylamine in quantitative yields. A radical mechanism is proposed. The product 1 represents the first example of a stable metal carbonyl cluster containing the perfluoro (CF3)2NO radical, a relatively strong oxidant. The X-ray structure and IR spectra are reported. © 1991.