期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 77, 期 3, 页码 620-624出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2010.06.036
关键词
Anion recognition; Anion binding; Indolylmethane; Hydrogen bonding; Spectroscopy
类别
资金
- National Natural Science Foundation of China [20672121]
The anion binding properties of two title tri(indolyl)methane compounds have been evaluated by using UV-vis absorption and fluorescence spectroscopy. Different from 3-linked receptor which exhibited faint even no obvious spectral response to anions, 2-linked receptor can bind F-, AcO- and H2PO4-, with the bathochromic shifts of the UV absorption and fluorescence quenching. This selectivity will be attributed to suitable steric array of NH binding sites of 2-linked receptor, which helps to form multiple hydrogen bonding interactions with anions. (C) 2010 Elsevier B.V. All rights reserved.
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