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The Prediction of Colour Change in Dye Equilibria. II–Metal Complexes of Ortho –Hydroxyazobenzenes
Author(s) -
GRIFFITHS J.,
MANNING A. N.,
RHODES D.
Publication year - 1972
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1972.tb03048.x
Subject(s) - metal , ring (chemistry) , chemistry , linear relationship , series (stratigraphy) , linear correlation , spectral line , computational chemistry , mathematics , organic chemistry , physics , statistics , quantum mechanics , paleontology , biology
The visible spectra of two series of ortho –hydroxyazobenzenes and their metal complexes have been studied and the effect of ring substituents has been evaluated. A linear relation exists between the λ max values of the complexes and those of the parent dyes, enabling the colour change accompanying metallisation to be predicted with reasonable precision. The linear relations can be accounted for qualitatively.