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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45323

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:生命科學系
Date: 2018-01
Issue Date: 2018-03-13T08:10:41Z
Publisher: Journal of the Chinese Chemical Society
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
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45323
Appears in Collections:[生命科學系] 期刊論文

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