Edge-bridged octahedral structures, hexanuclear

The hexanuclear molecule [Mo6(0)6(ft-0)4(iU-OlV)6(OPr )6] contains a remarkable serpentine chain of six coplanar Mo atoms linked by bridging 0x0 or isopropoxo ligands. The structure is centrosynunetrical (Fig. 5.18) with the exterior octahedrally coordinated Mo(vi) atoms edge-sharing (/t-OlV)2 with adjacent five-coordinated (square pyramidal) Mo(v) atoms which in turn are (ix-o o)2 bridged and metal-metal bonded (Mo-Mo, 2.585 A) to the inner Mo(v) atoms. ... 

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