Premium
Reduction of a Boron–Nitrogen 1,3‐Butadiene Analogue: Evidence for a Strong BB π‐Bond
Author(s) -
Moezzi Afarin,
Bartlett Ruth A.,
Power Philip P.
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.199210821
Subject(s) - boron , nitrogen , lithium (medication) , bond energy , chemistry , boro , double bond , bond , crystallography , molecule , organic chemistry , medicine , finance , economics , endocrinology
An ethene analogue with a BB bond and two negatively charged boron centers ( 2 ) is formed from the reduction of 1 with lithium powder to 2 ‐2 Li. Based on UV data, the BB bond energy is estimated at 40 kcal mol −1 . This double bond is formed at the expense of two BN bonds in 1 , as reflected in the significant lengthening of the BN bonds on transition from 1 to 2 .