A close-packed boron-rich 11-vertex molybdaborane with novel geometry

作者：Chakrahari Kiran Kumar Varma; Thakur Arunabha; Mondal Bijan; Dhayal Rajendra Singh; Ramkumar V; Ghosh Sundargopal^*

来源：Journal of Organometallic Chemistry, 2012, 710: 75-79.

DOI：10.1016/j.jorganchem.2012.02.027

• Borane
• Trinuclearmolybdaboranes
• 11-Vertex metallaborane

The reaction of an intermediate, generated from [(CpMoCl4)-Mo-#] [Cp-# = Cp or Cp*; Cp = (eta(5)-C5H5), Cp* = (eta(5)-C5Me5)] and LiBH(4 center dot)thf, with different chalcogen ligands yielded trimolybdaborane clusters 1-3, [((CpMo)-Mo-#)(3)(mu-H)B8H6X2], (1: Cp-# = Cp, X = H; 2: Cp-# = Cp*, X = H; 3: Cp-# = Cp*, X = Cl). Compounds 1-3 constitute an example of an unsaturated (n-4) sep cluster having very close structural similarities. These clusters represent 11-vertex boron-rich metallaboranes containing 66 cluster valence electrons (cve). All the compounds were fully characterized by various spectroscopic techniques, elemental analysis and the solid state structures were unequivocally established by X-ray diffraction analysis of 1-3.

• 出版日期2012-7-1