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A Straightforward Synthesis of Chlorine‐Bearing Donor–Acceptor Alternating Copolymers with Deep Frontier Orbital Levels
Author(s) -
Gao Xiang,
Shen Jiulin,
Hu Bin,
Tu Guoli
Publication year - 2014
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201400131
Subject(s) - homo/lumo , copolymer , chlorine , thiophene , chemistry , polymer chemistry , molecular orbital , stille reaction , acceptor , photochemistry , molecule , organic chemistry , polymer , physics , condensed matter physics
Donor–acceptor alternating copolymers with chlorine atoms on the backbone are synthesized via a straightforward Stille polycondensation. Thiophene and chlorine‐substituted 2,3‐diphenylquinoxaline are chosen as the donor and acceptor moieties, respectively. Compared with the corresponding non‐substituted and fluorine‐substituted analogues, which are also synthesized for systematical studies, the chlorine‐bearing copolymer exhibits the deepest lowest unoccupied molecular orbital (LUMO). The highest occupied molecular orbital (HOMO) level of the chlorine‐bearing copolymer can be modified by applying different donor moieties. Additionally, these chlorine‐bearing copolymers show low self‐absorption and large Stokes Shift.