Synthesis, Crystal Structure, Spectral and Thermodynamic Properties of One Benzoindole Pentamethine Cyanine Dye
作者:Xiu-Fu Zhang、Jun-Long Zhao、Wei-Bin Bi、Dan-Dan Zhang、Zhi-Yuan Yang、Lan-Ying Wang
DOI:10.1002/jccs.201200405
日期:2013.5
One benzoindole pentamethine cyanine dye was synthesized and characterized by 1H NMR, IR, MS and UV‐Vis spectra. The UV‐Vis absorption and fluorescence spectra of the dye in chloroform, dimethyl sulfoxide, acetone, ethanol and methanol were investigated, and the λmax of the dye was in the region 682.0–689.0 nm with large molar extinction coefficients (ϵ > 105 M−1cm−1) in different solvents. The structure
合成了一种苯并吲哚五甲胺花青染料,并通过1 H NMR,IR,MS和UV-Vis光谱进行了表征。在氯仿中染料的紫外-可见吸收光谱和荧光光谱,二甲亚砜,丙酮,乙醇和甲醇进行了研究,并且λ最大的染料的是该区域682.0-689.0纳米,大的摩尔消光系数(ε> 10 5 M -1 cm -1)在不同的溶剂中。还通过X射线衍射对染料的结构进行了表征和分析。晶体学数据表明,该染料属于正交晶,空间群P2 1 2 1 2 1,a = 10.059(2)Å,b = 15.098(4),C ^ = 24.989(6)A,V = 3794.8(15)一种3,Z =陈列在分子系统4 C-H···˚F分子间氢键,这是有效在分子包装中。还通过紫外可见光谱法研究了染料在甲醇水溶液中的聚集行为和热力学性质。结果表明该染料在甲醇水溶液中存在单体二聚体平衡。染料的基本特性,例如二聚体缔合常数K D,二聚体自由能ΔG D,二聚体熵ΔS