作者机构：
College of Chemistry and Environmental Engineering, Yangtze University, Hubei, Jingzhou, 434023;College of Chemistry, Central China Normal University, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Hubei, Wuhan, 430079;College of Chemistry and Material Science,Hebei Normal University, Hebei, Shijiazhuang, 050024;[胡琳莉] College of Chemistry and Environmental Engineering, Yangtze University, Hubei, Jingzhou, 434023;[张宇峰; 尹军] College of Chemistry, Central China Normal University, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, Hubei, Wuhan, 430079
通讯机构：
Key Laboratory of Pesticide and Chemical Biology, College of Chemistry, Central China Normal University, Wuhan, Hubei, China
关键词：
dansyl dye;mercury ion (Ⅱ) detection;fluorescent probe;bioimaging
摘要：
Mercury ion (Ⅱ) is known as one of the most toxic metal ions both for humans and the environment. In this work,a new fluorescent probe based on dansyl dye was designed and synthesized, and its determining property towards metal cations was investigated. The result indicated that this dansyl-based fluorescent probe possessed high selectivity and good sensitivity towards mercury ion (Ⅱ) in an aqueous media without any interference from other metal cations. It was worth mentioning that the detection limit of mercury ion (Ⅱ) can reach to 2.1 × 10~(-8) mol/L. Such low detection limit and good water-solubility supported this probe could be used to visualize the level of mercury ion (Ⅱ) in living cells. Furthermore,the bioimaging experiment confirmed that this probe had good membrane permeability and biocompatibility.
摘要：
Luminescent, chemosensors for chiral molecules have drawn significant attention. In this study, a new iridium complex 1 bearing two urea groups and ethyl naphthalene groups was synthesized as a phosphorescent chemosensor for chiral anion recognition. Addition of t-Boc amino acids induced phosphorescence enhancement with the maximum emission at 560 nm. As large as K-D/K-L value of 5.0 was observed for iridium complex 1 with phenylgylcine. Two urea groups provide a preorganized binding site for the carboxylates, whereas two ethyl naphthalenes act as chiral barriers. (C) 2016 Elsevier B.V. All rights reserved.
作者机构：
[Jun Yin] Key Laboratory of Pesticide & Chemical Biology, Ministry of Education College of Chemistry, Central China Normal University
会议名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会
会议时间：
2016-08-25
会议地点：
中国湖南长沙
关键词：
Crown ethe;Pyrene;Cations;Binding behavior
摘要：
<正>Pyrene is a compact polycyclic aromatic hydrocarbon which has been widely exploited for its increasing performance in electronic and photophysical properties.1 On the other hand,crown ethers are flexible heterocycles which are capable of binding metal ions.2 In this work,a mono
作者机构：
[Xie Han; Meijiao Cao; Sheng Hua Liu; Jun Yin] Key Laboratory of Pesticide & Chemical Biology, Ministry of Education College of Chemistry, Central China Normal University
会议名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会
会议时间：
2016-08-25
会议地点：
中国湖南长沙
摘要：
<正>It’s well known that the complexing ability between crown ethers and cations is in relationship with the interior cavity of the crown ethers.1 In this work,a mono pyrene-modified18-crown-6(MP18C6)w
作者机构：
[Xie Han; Meijiao Cao; Sheng Hua Liu; Jun Yin] Key Laboratory of Pesticide & Chemical Biology, Ministry of Education College of Chemistry, Central China Normal University
会议名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会
会议时间：
2016-08-25
会议地点：
中国湖南长沙
摘要：
<正>Pyrene is a compact polycyclic aromatic hydrocarbon which has been widely exploited for its unique photophysical properties.1 On the other hand,crown ethers are flexible heterocycles which are capa
摘要：
A fluorescent sensor for halogenated solvents termed AMN is reported. AMN shows strong fluorescence in most halogenated solvents (QE > 0.1) but weak fluorescence (QE<0.01) in most non-halogenated solvents. In chlorinated solvents, the fluorescence intensity decreased with the reduction of chlorine content. On the contrary, in brominated solvents the fluorescence intensity increased with the reduction of bromine content. It is worth mentioning that AMN displayed fluorescence emission centered at 520 nm in CCl4 with a quantum yield of 0.607, at 556 nm in CHCl3 with a quantum yield of 0.318, at 584 nm in CH2Cl2 with a quantum yield of 0.128, whereas in CHBr3 was centered at 441 nm with a quantum yield of 0.012. AMN was shown to have the ability to differentiate CCl4, CHCl3, CH2Cl2 and CHBr3 halogenated solvents.
摘要：
A novel naphthalimide-based fluorescent probe employing a sulfonamide unit as a thiol-responsive group is reported. It is capable of efficiently distinguishing GSH from cysteine and homocysteine. Bioimaging shows that it has high selectivity in living cells and can visualize the level of GSH in lysosomes. It is worth mentioning that different groups on the imide unit can affect the selectivity and reaction dynamics of the probe towards thiols.
作者机构：
[Xie Han; Meijiao Cao; Sheng Hua Liu; Jun Yin] Key Laboratory of Pesticide & Chemical Biology, Ministry of Education College of Chemistry, Central China Normal University
会议名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会
会议时间：
2016-08-25
会议地点：
中国湖南长沙
会议论文集名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会会议论文集（上）
关键词：
Crown ether;Pyrene;Cations;Binding behavior
摘要：
<正>The stacking state and intermolecular interaction between pyrene and pyrene has been widely studied on account of its broaden application.1 In this work,a mono pyrene-modified 15-crown-5（MP15C5）was synthesized.By complexing different cations,theπ-πinteraction has been changed.The corresponding crystal structures of complexes revealed that there was strongπ-π
作者机构：
[Zhiqiang Xu; Xie Han; Guoxing Liu; Di Wu; Sheng Hua Liu; Jun Yin] Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University
会议名称：
全国第十八届大环化学暨第十届超分子化学学术讨论会
会议时间：
2016-08-25
会议地点：
中国湖南长沙
摘要：
<正>Rotaxanes are one of the most important classes ofmechanically interlocked moleculesand functional[n]rotaxanes possessing a fluorophore have attracted considerable attention.1In this work,a series
摘要：
A new dinuclear-copper(II) complex (Cu-L2) with two ammonium arms based on bis-2-((pyridin-2-ylmethylamino)methyl)phenol as the coordinated unit was synthesized. The complex exhibited high affinity with pyrophosphate (PPi) in aqueous solution. Using pyrocatechol violet (PV) as a colorimetric indicator, the indicator displacement assay (IDA) was carried out to determine the binding constant between the complex and PPi. A ca. 784-fold enhancement was founded when compared Cu-L2 to ammonium-free counterpart (Cu-L1). The new dinuclear complex was successfully used to monitor the hydrolysis of PPi catalyzed by pyrophosphatase (PPase). Furthermore, by employing esculetine as a fluorescent indicator, the complex was also used to detect PPi released during polymerase chain reaction (PCR).
