Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Natália M. Monezi"'
Publikováno v:
Química Nova, Vol 42, Iss 9, Pp 1116-1121 (2019)
The effect of the solvent on the electronic properties of the triarylmethane dye rosolic acid (RA) is investigated by means of UV-VIS and resonance Raman (RR) spectroscopies. The comparison of the solvatochromic behavior of both neutral and dianionic
Externí odkaz:
https://doaj.org/article/e5b5d211e3b840e9b67d0676c3c41d0f
Publikováno v:
Química Nova, Vol 42, Iss 9, Pp 1116-1121 (2019)
Química Nova v.42 n.9 2019
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Química Nova v.42 n.9 2019
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The effect of the solvent on the electronic properties of the triarylmethane dye rosolic acid (RA) is investigated by means of UV-VIS and resonance Raman (RR) spectroscopies. The comparison of the solvatochromic behavior of both neutral and dianionic
Autor:
Sérgio Hiroshi Toma, Paola Corio, Koiti Araki, Jonnatan J. Santos, Natália M. Monezi, Rômulo A. Ando
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
After more than 40 years, surface-enhanced Raman spectroscopy (SERS) stills attract much attention from chemists, not only because of the synthesis of plasmonic nanostructures but also due to the several simultaneous mechanisms which still remain unc
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The different solvation states of SO2 in 1-butyl-3-methylimidazolium thiocyanate ionic liquid were probed by the detailed analysis of the SO2 symmetric stretching mode, νs(SO2). The band position and linewidth were monitored in function of gas molar
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The reaction between tetracyanoethylene and N,N- dimethylaniline was extensively studied in early of 1960's. Surprisingly, the role of intermediate species involved in the reaction mechanism is still ambiguous. New density functional theory (DFT) cal
Autor:
Natália M. Monezi, Rômulo A. Ando
Publikováno v:
Journal of Raman Spectroscopy. 48:758-764
Tetracyanoethylene is an archetypal electron acceptor and in the presence of aromatic amines forms charge transfer π-complexes, which subsequently leads to the formation of a tricyanovinylation product by the electrophilic aromatic substitution at p
Resonance Raman and UV–vis characterization of charge transfer complexes of TCNQ and aromatic amines
Autor:
Rômulo A. Ando, Natália M. Monezi
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Although the molecular charge transfer complexes formed by 7,7,8,8-tetracyanoquinodimethane (TCNQ) and several different donors have been widely investigated in the past, in this paper it is shown for the first time the vibrational spectroscopic char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d458cd3b14b7d9034dfd0a236ba79de
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The distinct thermochromism observed in solutions containing N,N-dimethylaniline (DMA) and N,N-diethylaniline (DEA) and SO2 was investigated by resonance Raman spectroscopy in a wide range of temperatures. The results indicate in addition to the char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f964c3004e1a5d3dff3be02a33d70c
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 173
The distinct thermochromism observed in solutions containing N,N-dimethylaniline (DMA) and N,N-diethylaniline (DEA) and SO
Autor:
Natália M. Monezi, Rômulo A. Ando
Publikováno v:
Journal of the Brazilian Chemical Society, Volume: 28, Issue: 9, Pages: 1665-1672, Published: SEP 2017
Journal of the Brazilian Chemical Society v.28 n.9 2017
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society v.28 n.9 2017
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
The first step of electrophilic aromatic substitution reactions generally involves the formation of charge transfer complexes. Tetracyanoethylene (TCNE) in the presence of aromatic amines forms π-type complexes that subsequently lead to tricyanoviny