Microwave-assisted synthesis and crystal structure of oxo(diperoxo)(4,4'- di-tert-butyl-2,2'-bipyridine)-molybdenum(Vl

Abstract

The oxodiperoxo complex MoO(O2)(tbbpy) (tbbpy = 4,4'-di-tert-butyl-2,2'- bipyridine) was isolated from the reaction of MoO 2Cl2(tbbpy) in water under microwave- assisted heating at 120 °C for 4 h. The structure of the oxodiperoxo complex was determined by single crystal X-ray diffraction. The MoVI centre is seven-coordinated with a geometry which strongly resembles a highly distorted bipyramid. Individual MoO(O2)2(tbbpy) complexes are interdigitated along the [010] direction to form a column. The crystal structure is formed by the close packing of the columnar-stacked complexes. Interactions between neighbouring columns are essentially of van der Waals type mediated by the need to effectively fill the available space. © 2009 by the authors.