Preparation, crystal and molecular structure of a hydrocarbon soluble, volatile oxo-alkoxide of barium: H4Ba6(µ6-O)(OCH2CH2OCH3)14

Abstract

Barium granules suspended in toluene react rapidly and exothermically with 2-methoxyethanol to yield a hydrocarbon-soluble, volatile (160 °C, 10^–1 Torr; 1 Torr = 133.322 Pa), crystalline oxo-alkoxide H₄Ba₆(µ₆-O)(OCH₂CH₂OCH₃)₁₄ which has been characterized by a single-crystal X-ray study; a central octahedral Ba₆(µ₆-O) unit is supported by eight µ₃-η²-OCH₂CH₂OCH₃, four η²-OCH₂CH₂OMe and two η¹-OCH₂CH₂OMe groups and intermolecular hydrogen bonds.