Preparation and properties of perichromic dye: an undergraduate laboratory


Autoria(s): Abarca,Priscilla; Silva,Patricia; Almodovar,Iriux; Rezende,Marcos Caroli
Data(s)

01/01/2014

Resumo

An undergraduate experiment that illustrates the phenomenon of perichromism-the sensitivity of a dye to its microenvironment, as assessed by color changes of its solutions-is described. An easily prepared perichromic imine is synthesized and characterized, and its solvatochromism, thermochromism, halochromism, and preferential solvation in binary solvent mixtures are demonstrated by visual inspection of its solutions. The results are rationalized by invoking solute - solvent interactions in the various media.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000400027

Idioma(s)

en

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.37 n.4 2014

Palavras-Chave #solvatochromism #thermochromism #halochromism #solute - solvent interactions
Tipo

journal article