Base‐Induced Intramolecular Formation of a MoMo Bond in [L 2 Mo       2    III    μ‐OH(μ‐CH 3 CO 2 ) 2 ] 3⊕ (L =  N,N′,N″ ‐Trimethyl‐1,4,7‐triazacyclononane) | Zendy

Neves Ademir | Zendy; Bossek Ursula | Zendy; Wieghardt Karl | Zendy; Nuber Bernd | Zendy; Weiss Johannes | Zendy

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Base‐Induced Intramolecular Formation of a MoMo Bond in [L 2 Mo 2 III μ‐OH(μ‐CH 3 CO 2 ) 2 ] 3⊕ (L = N,N′,N″ ‐Trimethyl‐1,4,7‐triazacyclononane)

Author(s) -

Neves Ademir,

Bossek Ursula,

Wieghardt Karl,

Nuber Bernd,

Weiss Johannes

Publication year - 1988

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.198806851

Subject(s) - deprotonation , intramolecular force , chemistry , base (topology) , triple bond , metal , transition metal , medicinal chemistry , crystallography , stereochemistry , polymer chemistry , double bond , organic chemistry , catalysis , ion , mathematical analysis , mathematics

The MoMo distance shrinks from 3.555 to 2.885 Å on deprotonation of the OH‐bridge in 1 . This, as also the drastic changes in the UV/VIS spectrum and in the magnetic properties, clearly indicates a transition from a classical Werner complex to a complex with metal–metal bonding. MO considerations suggest that the Mo‐‐Mo bond in deprotonated 1 is an intramolecularly formed triple bond. The deprotonation of 1 is a completely reversible reaction.

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