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Acta Cryst. (2008). E64, m1370-m1371 [ doi:10.1107/S1600536808031668 ]
![[mu]](/logos/entities/mu_rmgif.gif)
3-oxido-di-2-oxido-tetraoxidobis(1,1,2,2-tetramethylethylenedicyclopentadienyl)dimolybdenum(IV)dimolybdenum(VI) hexahydrateAbstract: The title compound, [Mo4(C16H20)2O8]·6H2O, is a centrosymmetric ansa-molybdocene complex in which two dinuclear [C2Me4(![[eta]](/logos/entities/eta_rmgif.gif)
5-C5H4)2]Mo(2-O)2MoO2 units dimerize by forming two 3-O bridges between three Mo atoms. The ansa-molybdocene [C2Me4(5-C5H4)2]Mo unit has a typical bent-sandwich metallocene structure with an inter-ring angle of 127.98 (8)°. The Mo atom in the bridging (2-O)(3-O)2MoO2 group has a distorted trigonal-bipyramidal coordination. The Mo-(3-O) and Mo-(2-O) bond distances inside the units [2.0869 (14) and 2.1014 (15) Å, respectively] are slightly longer than the Mo(-x + 1, -y + 1, -z)-(3-O) bond distance between the units [1.9986 (14) Å]. The solvent water molecules together with complex O atoms form a network of O-H
O hydrogen bonds.
Online 9 October 2008
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