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Quinonoid vs. aromatic structures of heteroconjugated polymers from oligomer calculations

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/d0cp00606h· OSTI ID:1803495
 [1];  [2];  [3];  [4]
  1. Georgetown Univ., Washington, DC (United States). Chemistry Dept. Inst. of Soft Matter; OSTI
  2. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemistry
  3. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemistry. Dept. of Materials Science and Engineering
  4. Georgetown Univ., Washington, DC (United States). Chemistry Dept. Inst. of Soft Matter
Conjugated polymers with quinonoid ground states can display low optical band gaps. The design of novel conjugated polymers with quinonoid ground states offers insights into the relative stabilities of aromatic vs. quinonoid structures. In this work, we present parameters such as the quinonoid (Q)/aromatic (A) energy difference, the band gap, and the C–C distances between the repeat units. This study reveals eight new polymers which exist in quinonoid ground state among twenty-nine polymers of varying structural composition that were subject to analysis. We expect that copolymerizing such quinonoid ground state monomers with aromatic ground state monomers will modulate the bandgap of the resulting polymers.
Research Organization:
Georgetown Univ., Washington, DC (United States); Johns Hopkins Univ., Baltimore, MD (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019017
OSTI ID:
1803495
Alternate ID(s):
OSTI ID: 1617918
OSTI ID: 1864953
OSTI ID: 1906719
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Journal Name: Physical Chemistry Chemical Physics. PCCP Journal Issue: 20 Vol. 22; ISSN 1463-9076
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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