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Weakly Basic Anion Recognition by Naphthalenediimide‐Based Polymer
Author(s) -
Yan Jijun,
Kang Chuanqing,
Ma Xiaoye,
Du Zhijun,
Bian Zheng,
Jin Rizhe,
Gao Lianxun
Publication year - 2017
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201700333
Subject(s) - chemistry , polymer , halide , ion , circular dichroism , polymer chemistry , combinatorial chemistry , crystallography , organic chemistry
The development of naphthalenediimide (NDI)‐based sensors for weakly basic anion recognition is an attractive challenge. This paper presents an NDI‐based polymer for the recognition of weakly basic oxyanions (AcO − , PhCO 2 − , ClO 4 − , and IO 4 − ) and halides (Cl − , Br − , and I − ) through the formation of NDI . − bands and changes in the π–π* transition bands of the polymer in UV/Vis and circular dichroism spectra. The recognition results from anion‐to‐NDI thermal electron transfer and disturbance of the self‐assembly of the polymer by anions. In particular, the formation of NDI . − induced by Cl − was observed, which is a distinctive advantage of the polymer in comparison with small molecular NDIs. The results demonstrate a practical approach to versatile functional materials through a combination of anion–NDI interactions and polymeric self‐assembly.