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Facile Synthesis of Size‐Tunable Functional Polyimidazolium Macrocycles through a Photochemical Closing Strategy
Author(s) -
Yan Tao,
Sun LiYing,
Deng YuXin,
Han YingFeng,
Jin GuoXin
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503709
Subject(s) - closing (real estate) , photochemistry , materials science , chemistry , business , finance
Abstract A synthetic strategy for the preparation of a series of polyimidazolium macrocycles from the corresponding dicarbene‐derived metallacycles is described. Photodimerization of terminal cinnamic esters (UV‐irradiation, λ =365 nm) produces the closed metallacycles with perfect stereoselectivity and high yields. Subsequent removal of the template from the photodimerization product results in polyimidazolium macrocycles. The size and shape of the receptor can be tuned easily by changing the length and breadth of the internal bridging groups of the ligands. Preliminary investigation shows the potential of the macrocycle as iodide sensor.