Synthesis and molecular structure of Bi4Ba4(µ4-O)2(µ3-OEt)8(µ-OEt)4(η2-thd)4 (Hthd = 2,2,6,6-tetramethylheptane-3,5-dione). An example of the formulation of a mixed-metal alkoxide assisted by dioxygen

Abstract

The reaction between bismuth ethoxide and [Ba(thd)₂]₄ (Hthd = 2,2,6,6-tetramethylheptane-3,5-dione) afforded the octanuclear Bi₄Ba₄(µ₄-O)₂(µ₃-OEt)₈(µ-OEt)₄(η²-thd)₄ species in high yield, the structure being determined by single-crystal X-ray diffraction; the formation of this species was precluded in anaerobic media.