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The Electronic Structure of [(η 5 ‐C 5 H 5 ) 2 Co 2 ]: Comment on the Existence of a Complex with an Unsupported CoCo Double Bond
Author(s) -
Abrahamson Harmon B.,
Niccolai Gerald P.,
Heinekey D. Michael,
Casey Charles P.,
Bursten Bruce E.
Publication year - 1992
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.199204711
Subject(s) - bridging (networking) , dimer , crystallography , ethylene , electron counting , reactivity (psychology) , chemistry , materials science , physics , electron , nuclear magnetic resonance , catalysis , nuclear physics , medicine , computer network , alternative medicine , pathology , computer science , biochemistry
Bridging hydrido ligands possibly cause the magnetic behavior of the Cp * Co dimer formulated by Schneider et al. as Cp * CoCoCp * ( Angew. Chem. Int. Ed. 1992 , 30 , 1124). This would agree with the calculated electron structures of the model compound CpCoCoCp and the hydrido complexes derived from them. Also the lack of reactivity of the dimer's “naked” CoCo double bond toward CO and ethylene can be explained without difficulty by a stabilizing influence of bridging hydrido ligands. The results of this theoretical study will certainly spark further investigations.