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Dinitrogen Activation by a Heterometallic VFe Complex Derived from 1,1'‐Bis(arylamido)vanadocene
Author(s) -
Hatanaka Tsubasa,
Kusunose Hinano,
Kawaguchi Hiroyuki,
Funahashi Yasuhiro
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201901120
Subject(s) - chemistry , moiety , ligand (biochemistry) , crystallography , redox , nitrogen , atmosphere (unit) , bond length , complex formation , inorganic chemistry , stereochemistry , crystal structure , organic chemistry , biochemistry , physics , receptor , thermodynamics
For dinitrogen activation mediated by a heterobimetallic VFe complex, synthesis and reduction of a novel iron complex having 1,1'‐bis(mesitylamido)vanadocene were performed. Reaction of the vanadocene ligand 2 with iron dichloride afforded a heterobimetallic VFe complex 3 , characterized by X‐ray crystallographic study. The molecular structure of the complex 3 showed the short V–Fe distance of 2.6373(3) Å, indicative of the bonding interaction between two metals. Reduction of the complex 3 with KC 8 under a nitrogen atmosphere was found to result in the formation of a three‐coordinate iron dinitrogen complex 4 , in which the dinitrogen moiety shows one of the longest N–N bond lengths for iron dinitrogen complexes. Reduction of the complex 3 under an argon atmosphere was performed to isolate a reduced species [K(thf) 5 ][ 3 ] as a reactive intermediate, whose structure was also determined by X‐ray crystallography.