Ethyl 6-(trifluoromethyl)pyridazine-3-carboxylate
CAS Number:
1192155-06-8
Molecular Formula:
C8H7F3N2O2
π-Congested poly(paraphenylene) from 2,2′,6,6′-tetraphenyl-1,1′-biphenyl units: synthesis and structural characterization
Literature Information
Publication Date
2013-03-25
DOI
10.1039/C3PY00166K
Impact Factor
5.582
Authors
Florian Schlütter, Tomohiko Nishiuchi, Volker Enkelmann, Klaus Müllen
View Original
Abstract
The synthesis of poly(paraphenylene)s (PPPs) bearing sterically π-congested 2,2′,6,6′-tetraphenyl-1,1′-biphenyl (1) units has been achieved for the first time. By enhancing the synthesis of 1, followed by its polymerization, we were able to compare the photophysical properties of the oligomeric and polymeric fractions with non-crowded PPPs. This revealed significant π-orbital interactions along the paraphenylene backbone of the π-congested systems together with through-space conjugation among the π-orbitals of the stacked peripheral phenyl rings, resulting in an increased effective conjugation length and a remarkable bathochromic shift in absorption.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
7.3%
Articles per Year:
457
Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.
Recommended Compounds
trans-2-(2-Methoxyphenyl)-5-oxotetrahydrofuran-3-carboxylic acid
CAS Number:
99226-02-5
Molecular Formula:
C12H12O5
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