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Unusual η 1 ‐Coordinated Alkyne and Alkene Complexes
Author(s) -
Li Longfei,
Dong Mengxian,
Zhu HuaJie,
Peng Bin,
Xie Yaoming,
Schaefer Henry F.
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201903824
Subject(s) - alkyne , alkene , steric effects , chemistry , olefin fiber , polymerization , stereochemistry , organic chemistry , catalysis , polymer
This mechanistic study demonstrates that an unusual η 1 ‐coordinated alkyne complex is critical for the 1‐pentyne 1,1‐diboration reaction. The comparative studies suggest the “pull–push” antagonistic effect arising from Lewis acidity and steric congestion as the reason for the existence of η 1 ‐coordinated alkyne complexes. Analogous η 1 ‐coordinated alkene complexes are also predicted and seem to be promising for their application to the important olefin polymerization reaction.