Investigation of synthetic pathways of carboxylic acid phthalocyanines from glycolic and lactic acids

Autor(es)

do Nascimento, Francisco B. ; Ribeiro, Anderson O.

• Tipo de documento: Artigo Científico
• Fonte: Inorganica Chimica Acta; v. 467, p. 106-116, OCT 2017.
• Citações Web of Science: 0

Resumo

We present the study of synthetic pathways to prepare carboxylic acid substituted phthalocyanines from glycolic and lactic acids. Hydroquinone was used as an alternative catalyst for cyclotetramerization reaction of metal free and zinc phthalocyanines, which were characterized by H-1 MR spectroscopy, infrared absorption and mass analysis. The photophysical and photochemical properties in dimethyl sulfoxide (DMSO) were analyzed. We verified that the presence of the methyl radical group, that distinguish both structures, diminish the macrocycle aggregation in solution and promote higher quantum yields of fluorescence and for singlet oxygen generation. (C) 2017 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 14/18527-8 - Ftalocianinas e Naftalocianinas: síntese de macrociclos anfifílicos para aplicação em Terapia Fotodinâmica
• Beneficiário: Anderson Orzari Ribeiro
• Modalidade de apoio: Auxílio à Pesquisa - Regular