The assembly of rotaxane-like dye/cyclodextrin/surface complexes on aluminium trihydroxide or goethite

RJ Cooper, PJ Camp, RJ Gordon, DK Henderson…

Index: Cooper, Rachel J.; Camp, Philip J.; Gordon, Ross J.; Henderson, David K.; Henry, Dorothy C. R.; McNab, Hamish; De Silva, Sonali S.; Tackley, Daniel; Tasker, Peter A.; Wight, Paul Dalton Transactions, 2006 , # 23 p. 2785 - 2793

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Citation Number: 7

Abstract

Simple azo-dyes carrying phosphonic acid and arsonic acid 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 ...