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BIBTEX RIS

INVESTIGAÇÃO DO SOLVATOCROMISMO E IONOCROMISMO DO CORANTE AZUL DO NILO ATRAVÉS DAS ESPECTROSCOPIAS RAMAN, INFRAVERMELHO E UV-VIS

2019; Brazilian Chemical Society; Linguagem: Inglês

10.21577/0100-4042.20170432

ISSN

1678-7064

Autores

Michele Lemos de Souza, Paola Cório,

Tópico(s)

Geography and Environmental Studies

Resumo

INFRARED AND UV-VIS SPECTROSCOPIES.The present work presents the systematic study of Nile Blue A (NB) dye, a cationic textile dye, through electronic and vibrational spectroscopies (Raman, resonant Raman scatter and infrared absorption) in the presence of distinct anions (chloride, bromide, perchlorate and sulfate) and protic and aprotic solvents of different polarities (water, ethanol, acetone, acetonitrile, chloroform and ethyl acetate).There were vibrational changes resulting from the formation and destruction of aggregates according to the chemical environment, besides the formation of a molecular conformation with higher energy in apolar aprotic solvents.

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