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New Discoveries in the Realm of Metal–Metal Multiple Bonds:[η 5 ‐(C 5 Me 5 )Co 2 ], the First Organometallic Multiple‐Bond Complex without Bridging Ligands
Author(s) -
Wachter Joachim
Publication year - 1991
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.199111201
Subject(s) - reactivity (psychology) , group 2 organometallic chemistry , double bond , triple bond , chemistry , metal , chemical bond , electron , bond , crystallography , stereochemistry , physics , molecule , polymer chemistry , organic chemistry , quantum mechanics , medicine , alternative medicine , finance , pathology , economics
Double bond, yes or no? That is the poignant question in the case of the complex [Cp * CoCoCp * ] prepared by J. J. Schneider et al. The CoCo distance and the number of electrons suggest a double bond, while the 1 H‐NMR spectrum and the poor reactivity toward C 2 H 4 and CO would suggest the contrary. Nevertheless, with this unbridged complex, the prerequisite for the synthesis of further such compounds and for studying the properties of these multibond systems was realized (see also Communication on p. 1124ff.).