Reactions of osmium carbonyl complexes with phosphine ligands have been studied for decades. We have recently used a microwave reactor to investigate the reactivity of Os3(CO)12 with multidentate phosphines including bis(diphenylphosphino)methane (or dppm) and 1,1,1-tris(diphenylphosphinomethyl)ethane (or triphos) at high temperatures. The efficiency and convenience of microwave heating make it an ideal synthetic method for undergraduate students to master. Four new triosmium cluster complexes have been synthesized and characterized by X-ray crystallography. In each case, C-H bonds have been cleaved while Os-C bonds have been formed.

New triosmium clusters with multidentate phosphine ligands

247th National Meeting (2014)

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