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Inside Cover: Elucidation of π‐Conjugation Modes in Diarene‐Fused 1,2‐Dihydro‐1,2‐diborin Dianions (Chem. Asian J. 7/2012)
Author(s) -
Araki Takafumi,
Wakamiya Atsushi,
Mori Kenji,
Yamaguchi Shigehiro
Publication year - 2012
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201290026
Subject(s) - thiophene , moiety , chemistry , stereochemistry , aromaticity , crystallography , polymer chemistry , molecule , organic chemistry
1,2‐Dihydro‐1,2‐diborin is an intriguing building unit with a BB bond. As described in their Full paper on page 1594 ff ., Atsushi Wakamiya and Shigehiro Yamaguchi et al. present new π‐electron systems consisting of dithiophene‐fused 1,2‐dihydro‐1,2‐diborins. Metal reduction produces their dianions, in which the orientation of thiophene rings determines the road of π conjugation. The 3,3′‐bithiophene skeleton enhances a 6π‐aromatic conjugation in the diborin moiety, while the 2,2′‐bithiophene skeleton favors a peripheral conjugation extended over the tricyclic framework.