In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2015, No. 4 ( 2015-02), p. 715-724
Abstract:
The rare Mo=Mo double‐bonded dimeric alkoxide complex [Mo 2 Cl 4 (OCH 3 ) 4 (CH 3 OH) 2 ] ( 1 ) was prepared by the simple methanolysis reaction of [MoCl 4 (CH 3 CN) 2 ]. It was shown that the dissolution of 1 in thf results in the formation of the [Mo 2 O 2 Cl 4 (OCH 3 ) 2 (thf) 2 ] ( 2 ) and [Mo 2 Cl 4 (OCH 3 ) 4 (thf) 2 ] ( 3 ) dimers. A novel tetranuclear 10e molybdenum cluster [Mo 4 Cl 4 O 2 (OCH 3 ) 6 (CH 3 OH) 4 ] ( 4 ) was synthesized by the spontaneous disproportionation of 1 in methanol. An alternative pathway to 4 based on the redox reaction of Mo 3+ and Mo 5+ compounds {in the form of [MoCl 3 (thf) 3 ] and [Mo 2 Cl 4 (OCH 3 ) 6 ] ( 5 ), respectively} was proposed and realized. The redox behavior of 4 was investigated by means of cyclic voltammetry. It was demonstrated that 4 may undergo a reversible two‐electron reduction process, which implies the retention of the {Mo 4 } core, whereas the oxidation is irreversible, proceeding apparently with the destruction of the tetranuclear cluster core.
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2015.4
DOI:
10.1002/ejic.201403032
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
1475009-0
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