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Hydroboration of Coordinated Dinitrogen: A New Reaction for the N 2 Ligand that Results in Its Functionalization and Cleavage
Author(s) -
Fryzuk Michael D.,
MacKay Bruce A.,
Johnson Samuel A.,
Patrick Brian O.
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20021004)41:19<3709::aid-anie3709>3.0.co;2-u
Subject(s) - hydroboration , surface modification , chemistry , cleavage (geology) , ligand (biochemistry) , combinatorial chemistry , organic chemistry , catalysis , engineering , biochemistry , receptor , geotechnical engineering , fracture (geology)
A clean break : Hydroboration of the side‐on, end‐on N 2 unit of [{(NPN)Ta} 2 (μ‐η 1 :η 2 ‐N 2 )(μ‐H) 2 ] ( 1 ; NPN=PhP(CH 2 SiMe 2 NPh) 2 ) by 9‐BBN results in the addition of the BH bond across the Ta–N 2 moiety to generate a NB bond and a terminal TaH unit ( 2 ). Surprisingly, this species is unstable in solution. Thus, this hydroboration triggers a cascade of reactions that result in NN bond cleavage and ancillary ligand rearrangement in the formation of the imide–nitride species 3 .