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Di-?(3)-oxido-di-?(2)-oxido-tetra-oxido-bis-(1,1,2,2-tetra-methyl-ethylenedicyclo-penta-dien-yl)-dimolyb-denum(IV)-dimolybdenum(VI) hexa-hydrate.

ABSTRACT: The title compound, [Mo(4)(C(16)H(20))(2)O(8)]·6H(2)O, is a centrosymmetric ansa-molybdocene complex in which two dinuclear [C(2)Me(4)(?(5)-C(5)H(4))(2)]Mo(?(2)-O)(2)MoO(2) units dimerize by forming two ?(3)-O bridges between three Mo atoms. The ansa-molybdocene [C(2)Me(4)(?(5)-C(5)H(4))(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)(2)MoO(2) 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 mol-ecules together with complex O atoms form a network of O-H?O hydrogen bonds.

SUBMITTER: Ahmed TJ

PROVIDER: S-EPMC2959595 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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Di-μ(3)-oxido-di-μ(2)-oxido-tetra-oxido-bis-(1,1,2,2-tetra-methyl-ethylenedicyclo-penta-dien-yl)-dimolyb-denum(IV)-dimolybdenum(VI) hexa-hydrate.

Ahmed Takiya J TJ Zakharov Lev N LN Tyler David R DR

Acta crystallographica. Section E, Structure reports online 20081009 Pt 11

The title compound, [Mo(4)(C(16)H(20))(2)O(8)]·6H(2)O, is a centrosymmetric ansa-molybdocene complex in which two dinuclear [C(2)Me(4)(η(5)-C(5)H(4))(2)]Mo(μ(2)-O)(2)MoO(2) units dimerize by forming two μ(3)-O bridges between three Mo atoms. The ansa-molybdocene [C(2)Me(4)(η(5)-C(5)H(4))(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 (μ(2)-O)(μ(3)-O)(2)MoO(2) group has a distorted trigonal-bipyramidal coordination ...[more]

PMID: 21580828

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