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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50402

Title: Platinum(II)-directed Self-assembly Loop Complexes for Anion Recognition and Sensing
Authors: Kai-Chi Chang
Chan-Yu Chen
Tzu-Pin Lin
Po-Jen Ku
Chun-Lin Chen
Chih-Ming Wang
Hsiu-Mei Lin
Mei-Chun Tseng
Ashutosh S. Singh
Shih-Sheng Sun
Contributors: 國立臺灣海洋大學:生命科學暨生物科技學系
Keywords: Self-assembly
Anion recognition
Platinum(II) complexes
Date: 2017-12
Issue Date: 2018-10-08T02:21:48Z
Abstract: Abstract: Two structurally simple Pt(II)-directed self-assembly loop complexes were prepared by reactions of
cis-(PEt3)2Pt(OTf )2 and the corresponding pyridylamide-functionalized pyridyl ligands. Both
Pt(II)-based complexes exhibit singlet fluorescence, indicating that the platinum metal serves only
as a structural, rather than a direct photophysical role within the loop framework. The crystal
structure of complex 1 shows a distorted loop conformation with a hydrophobic pocket defined by
the bridging ligands. The anion binding affinities of these two complexes were investigated with a
range of anions. Such studies using UV–vis absorption, fluorescence, and 1H NMR titrations
showed that complex 1 exhibits excellent binding sensitivity and selectivity for benzoate over acetate
in solution via a combination of electrostatic, hydrogen-bonding, and π–π interactions,
whereas complex 2 shows comparable binding affinities toward acetate and benzoate due to the
lack of favorable aromatic π–π interaction.
Relation: 65 pp.141-148
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50402
Appears in Collections:[水產養殖學系] 期刊論文

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