Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Quinquangulin and Rubrofusarin: A Spectroscopy Study

Full text
Author(s):
Show less -
Moreira, Leonardo Marmo [1] ; Lyon, Juliana Pereira [1] ; Lima, Adriana [2] ; Codognoto, Lucia [3] ; Machado, Antonio E. H. [4] ; Tiago, Fernanda de S. [4] ; Araujo, Diesley M. S. [5] ; Silva, Expedito Leite [6] ; Hioka, Noboru [6] ; Rodrigues, Maira Regina [7] ; Bonacin, Juliano Alves [8] ; dos Santos, Sandra Cruz [9] ; Romani, Ana Paula [10] ; Moises de Oliveira, Hueder Paulo [11]
Total Authors: 14
Affiliation:
Show less -
[1] Univ Fed Sao Joao del Rei, Dept Zootecnia DEZOO, Campus Dom Bosco, BR-36301160 Sao Joao Del Rei, MG - Brazil
[2] Univ Vale Paraiba, Ave Shishima Hifumi 2911, BR-12244000 Sao Paulo - Brazil
[3] Univ Fed Sao Paulo, Dept Quim, Rua Prof Arthur Riedel 275, BR-09972270 Sao Paulo - Brazil
[4] Univ Fed Uberlandia, Inst Quim, Lab Fotoquim & Ciencia Mat, Uberlandia, MG - Brazil
[5] Univ Fed Goias, Dept Quim, Campus Catalao, Catalao, Go - Brazil
[6] Univ Estadual Maringa, Dept Quim, Av Colombo 5790, Zona 07, BR-87020900 Maringa, Parana - Brazil
[7] Univ Fed Rio de Janeiro, Campus Macae, Rua Aloisio da Silva Gomes 50, BR-27930560 Rio De Janeiro - Brazil
[8] Univ Estadual Campinas, Inst Quim, BR-13083970 Sao Paulo - Brazil
[9] Univ Fed Rio Grande, Escola Quim & Alimentos, Campus Carreiros Pavilhao Quim, BR-96201900 Rio Grande, RS - Brazil
[10] Univ Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, Ave Estados 500, BR-09210580 Sao Paulo - Brazil
[11] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, BR-09210580 Sao Paulo - Brazil
Total Affiliations: 11
Document type: Journal article
Source: ORBITAL-THE ELECTRONIC JOURNAL OF CHEMISTRY; v. 9, n. 4, p. 290-298, JUL-SEP 2017.
Web of Science Citations: 1
Abstract

In this work, excitation and emission spectra were evaluated in order to elucidate the properties of quinguangulin and rubrofusarin in water/ethanol mixture. The study demonstrates that the maximum excitation wavelength can be significantly modulated changing the proportion of organic solvent in the water/organic solvent system. Quinquangulin presented the higher wavelength of maximum excitation in an ethanol-water mixture containing 70% of water. Probably, the organization between ethanol and water molecules in this condition favors the formation of strong polar interactions with the pi{*} orbitals of naphthopyrones. It is interesting to register that the additional methyl group in quinquangulin seems to develop a decisive function related to the ability to formation of hydrogen bonds, altering significantly the mechanism of solute-solvent interaction. This work, which involves both theoretical and experimental analyses, demonstrates the relevance of the studies focused on solvent mixtures as well as emphasizes the potential of quinguangulin and rubrofusarin as photosensitizers. (AU)