Synthetic β‐Cyclodextrin Dimers for Squaraine Binding: Effect of Host Architecture on Photophysical Properties, Aggregate Formation and Chemical Reactivity
作者:Sauradip Chaudhuri、Molly Verderame、Teresa L. Mako、Y. M. Nuwan D. Y. Bandara、Ashvin I. Fernando、Mindy Levine
DOI:10.1002/ejoc.201800283
日期:2018.5.8
Reported herein is the synthesis and application of three novel β-cyclodextrin dimer hosts for the complexation of near infrared (NIR) squaraine dyes in aqueous solution. A series of eight different N-substituted N-methyl anilino squaraine dyes with variable terminal groups are investigated, with an optimal n-hexyl substituted squaraine guest demonstrating binding constants orders of magnitude higher
本文报道了三种新型 β-环糊精二聚体主体的合成和应用,用于在水溶液中络合近红外 (NIR) 方酸染料。研究了一系列具有可变末端基团的八种不同的 N-取代的 N-甲基苯胺基方酸菁染料,其中最佳的正己基取代的方酸菁客体显示出比其他方酸菁-主体组合高几个数量级的结合常数,并且与文献报道的相当系统。此外,方酸染料与β-环糊精二聚体主体的疏水络合导致方酸的光物理性质、聚集倾向和水解衰变敏感性发生剧烈变化。