The assembly of rotaxane-like dye/cyclodextrin/surface complexes on aluminium trihydroxide or goethite
作者:Rachel J. Cooper、Philip J. Camp、Ross J. Gordon、David K. Henderson、Dorothy C. R. Henry、Hamish McNab、Sonali S. De Silva、Daniel Tackley、Peter A. Tasker、Paul Wight
DOI:10.1039/b518260c
日期:——
Simple azo-dyes carrying phosphonic acid and arsonicacid substituents such as 4-(4-hydroxyphenyl azo)phenylphosphonic acid (5) and 4-(4-hydroxyphenylazo)phenylarsonic acid (6) bind more strongly to high surface area oxides such as aluminium trihydroxide and goethite than their carboxylic and sulfonic acid analogues and the phosphonate-functionalized dyes have been shown to have greater humidity fastness