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Compounds with Partial Boron‐Carbon Triple Bonds
Author(s) -
Hunold Ralf,
Allwohn Jürgen,
Baum Gerhard,
Massa Werner,
Berndt Armin
Publication year - 1988
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.198809611
Subject(s) - boron , triple bond , bond , resonance (particle physics) , chemistry , crystallography , propargyl , carbon fibers , bond length , boro , stereochemistry , double bond , materials science , physics , atomic physics , organic chemistry , crystal structure , composite material , finance , composite number , economics , catalysis
133.9(6) pm; this is the length of the shortest BC bond known so far. It was found in 1 and confirms the importance of the resonance structure A. But the resonance structure B is also important for the description of 1 , as follows from the length of the second BC bond, which is markedly shorter than that of a BC single bond. Together, both observations underscore the electronic similarity of 1 and the propargyl/allyl cation.