Organotransition-metal complexes of multidentate ligands: IV. Facile formation of a heat- and air-stable, 17-electron radical, Tp′ Mo(CO) 3, and a sulfur-bridged dimer, [Tp′ Mo(CO) 2] 2S (Tp′ = hydridotris(3,5-dimethylpyrazol-1-yl)borate)

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A heat- and air-stable, 17-electron (17e) radical, Tp′Mo(CO) 3, and a sulfur- bridged dimer, [Tp′Mo(CO) 2] 2S (Tp′ = hydridotris(3,5-dimethylpyrazol-1-yl)borate), are obtained from the reaction of Tp′Mo(CO)3 − with Cp 2Fe + and from that of Tp′Mo(CO) 3 with sulfur, respectively. Success in obtaining the stable Tp′Mo(CO) 3 radical supports the concept that bulky multidentate ligands help to stabilize the 17e organometallic radicals whereas the facile formation of the dimer indicates that sulfurization of the 17e compounds can provide a facile route to metal-sulfur compounds.