合成了四种新颖的由亚甲基N-季2-硫代甲基苯并噻唑与4-甲基喹啉基发色团之间的缩合反应衍生的单次甲基花青染料,其特征在于11 H NMR,APT碳NMR,ESI质谱,IR,吸收和荧光光谱。目标花菁的主要合成方法涉及苯并噻唑鎓衍生物的芳环上的取代基以及产生与喹啉鎓部分连接的额外正电荷的组分的大小上的变化。已经研究了新型荧光团和dsDNA之间的相互作用。发现染料在缓冲溶液中具有可忽略的荧光,但是在与dsDNA结合时显示出显着的发射增加。使用McGhee和von Hippel位点排除模型通过荧光滴定确定了花菁染料的结合参数。获得的结果与花青酸和DNA之间的插入结合模式一致。
合成了四种新颖的由亚甲基N-季2-硫代甲基苯并噻唑与4-甲基喹啉基发色团之间的缩合反应衍生的单次甲基花青染料,其特征在于11 H NMR,APT碳NMR,ESI质谱,IR,吸收和荧光光谱。目标花菁的主要合成方法涉及苯并噻唑鎓衍生物的芳环上的取代基以及产生与喹啉鎓部分连接的额外正电荷的组分的大小上的变化。已经研究了新型荧光团和dsDNA之间的相互作用。发现染料在缓冲溶液中具有可忽略的荧光,但是在与dsDNA结合时显示出显着的发射增加。使用McGhee和von Hippel位点排除模型通过荧光滴定确定了花菁染料的结合参数。获得的结果与花青酸和DNA之间的插入结合模式一致。
A green catalysis of CO2 fixation to aliphatic cyclic carbonates by a new ionic liquid system
作者:Wing-Leung Wong、Lawrence Yoon Suk Lee、Kam-Piu Ho、Zhong-Yuan Zhou、Ting Fan、Zhenyang Lin、Kwok-Yin Wong
DOI:10.1016/j.apcata.2013.12.027
日期:2014.2
A mixed ionicliquidsystem has been developed for the efficient catalysis of CO2 addition to aliphatic epoxides without involving any transition metal catalysts or other additives. The ionicliquid integrated with pyridinium and pyrrolidinium groups (1·(Br)3) together with a non-polar ionicliquid (3·(Ntf)2) effectively transformed non-polar aliphatic epoxides to cyclic carbonates by the reaction
SULFUR-CONTAINING ADDITIVES FOR ELECTROCHEMICAL OR OPTOELECTRONIC DEVICES
申请人:Schmidt Michael
公开号:US20140193707A1
公开(公告)日:2014-07-10
The invention relates to sulfur-containing compounds of the formula I, to their preparation, and to their use as additives in electrochemical or electrooptical devices, more particularly in electrolytes for lithium batteries, lithium ion batteries, double layer capacitors, lithium ion capacitors, solar cells, electrochromic displays, sensors and/or biosensors.
The Preparation of Some ι-Bromoalkyl Quaternary Ammonium Salts
作者:Allan P. Gray、Dorothy C. Schlieper、Ernest E. Spinner、Chester J. Cavallito
DOI:10.1021/ja01618a069
日期:1955.7
Bis-ammonium Salts. Unsymmetrical Derivatives of Some Isoquinolines and Related Heterocyclic Bases<sup>1</sup>
作者:Allan P. Gray、Wesley L. Archer、Dorothy C. Schlieper、Ernest E. Spinner、Chester J. Cavallito
DOI:10.1021/ja01618a033
日期:1955.7
Monomeric asymmetric two- and three-cationic monomethine cyanine dyes as novel photoinitiators for free-radical polymerization
作者:Janina Kabatc、Jerzy Pączkowski
DOI:10.1016/j.dyepig.2009.12.007
日期:2010.7
Several two- and three-cationic monomethine cyanine dyes, possessing a benzothiazolium moiety were synthesized and evaluated as initiators of the free radical polymerization of 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate under visible light. Dyes bearing 1-methylpyrrolidinium, 4-methylmorpholinium, pyridinium and 3-(N,N-dimethylamino)propan-1-ol substituents were useful initiators. All derivatives absorbed in the region 510-570 nm and displayed molar absorption coefficients of 40 000-60 000 dm(3) mol(-1) cm(-1). A kinetic study of photoinitiated polymerization performed with the use of the electron donor n-butyltriphenylborate salt showed that the dyes were efficient two-component photoinitiators. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.