Isolation of a Homoleptic Non-oxo Mo(V) Alkoxide Complex: Synthesis, Structure, and Electronic Properties of Penta-tert-Butoxymolybdenum.

ABSTRACT: Treatment of [MoCl₄(THF)₂] with MOtBu (M = Na, Li) does not result in simple metathetic ligand exchange but entails disproportionation with formation of the well-known dinuclear complex [(tBuO)₃Mo≡Mo(OtBu)₃] and a new paramagnetic compound, [Mo(OtBu)₅]. This particular five-coordinate species is the first monomeric, homoleptic, all-oxygen-ligated but non-oxo 4d¹ Mo(V) complex known to date; as such, it proves that the dominance of the Mo═O group over (high-valent) molybdenum chemistry can be challenged. [Mo(OtBu)₅] was characterized in detail by a combined experimental/computational approach using X-ray diffraction; UV/vis, MCD, IR, EPR, and NMR spectroscopy; and quantum chemistr

SUBMITTER: Hillenbrand J 

PROVIDER: S-EPMC7517713 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature