Reactions of [Mo(NO){HB(3,5-Me2C3N2H)3}I2] with some cyclic ethers to form alkoxide complexes

Abstract

The complex [Mo(NO){HB(3,5-Me₂C₃N₂H)₃}I₂] reacts with oxacyclobutane, oxacyclopentane (tetrahydrofuran), or oxacycloheptane, in the presence of traces of moisture, to produce the diamagnetic alkoxide derivatives [Mo(NO){HB(3,5-Me₂C₃N₂H)₃}I{O(CH₂)_nI}](n= 3, 4, or 6 respectively). The reaction with methyloxacyclopropane (1,2-epoxypropane) affords a complex mixture of isomers, only one of which could be isolated in a pure form. The spectroscopic data were in accord with the formulation of this compound as [Mo(NO){HB(3,5-Me₂C₃N₂H)₃}I{OCH(Me)CH₂I}]. In the case of oxacyclohexane (tetrahydropyran) only the paramagnetic complex [Mo(NO){HB(3,5-Me₂C₂N₂H)₃}I(3,5-Me₂C₃N₂H₂)] could be isolated.