Two-Photon Sensors for Proton Derived from 7-Pyridinylbenzo[c] [1,2,5]thiadiazole Receptor

被引：0
作者：
Zhao Wei-feng [2 ]
Wang Xiao-mei [1 ]
Luo Jian-fang [1 ]
Tao Xu-tang [3 ]
机构：
[1] Suzhou Univ Sci & Technol, Inst Chem & Bioengn, Suzhou 215009, Peoples R China
[2] Soochow Univ, Inst Chem & Mat Sci, Suzhou 215123, Peoples R China
[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2011年 / 31卷 / 05期
关键词：
Sensor; One-photon fluorescence; Two-photon fluorescence PH-sensor; 4-(pyridine-2-yl)benzothiadiazole; PH SENSOR; CHARGE-TRANSFER; BENZOTHIOXANTHENE; CHROMOPHORES;
D O I：
10.3964/j.issn.1000-0593(2011)05-1300-05
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Two new chromophores with carbazole as molecular focal point bearing either one o-pyridine-benzothiadiazole unit or two o-pyridine-benzothiadiazole units at the periphery respectively, named as 2,8-(o-pyridine-benzothiadiazole)-N-ethyl-carbazole (CPTZ1) and 2,8-bis(o-pyridine-benzothiadiazole)-N-ethyl-carbazole (CPTZ2), were synthesized and characterized by IR spectra, (1)H NMR spectra and MS. The influence of proton upon one-photon and two-photon fluorescence about these two compounds was discussed. Stern-Volmer equation gives that the S-V constants (k(SV)(1P)) of one-photon fluorescence (1PF) of CPTZ1 and CPTZ2 are 0.04 and 0.10 L . mol(-1), respectively; while the k(SV)(2P) of two-photon fluorescence (2PF) of CPTZ1 and CPTZ2 are 0.20 and 0.22 L . mol(-1), respectively. Obviously, two-photon (2P) fluorescence detection presented more sensitivity than one-photon (IF) fluorescence response, which exhibits the potential application of two-photon sensor in PH detection.
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收藏
页码：1300 / 1304
页数：5
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