Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Francisco José Santos Lima"'
Autor:
Francisco José Santos LIMA, Maria José de Oliveira PESSOA, Lucas da Silva ARAÚJO, Ademir Oliveira da SILVA, Francisco Claudece PEREIRA
Publikováno v:
SOUTHERN JOURNAL OF SCIENCES. 30:8-17
Background: Recently, research has been carried out to improve the efficiency of electronic devices in general. With the commercial search for consolidated materials and the growth in demand with monitoring of costs, research has sought to minimize t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49e82fa385d6f8582d666b27c0c673f2
https://doi.org/10.48141/sjs.v30.n33.2022.01_lima_pgs_08_17.pdf
https://doi.org/10.48141/sjs.v30.n33.2022.01_lima_pgs_08_17.pdf
Autor:
Mary Kalina Sarmento BATISTA, Patrícia Mendonça PIMENTEL, Francisco José Santos LIMA, Anne Michelle Garrido PEDROSA, Afrânio Gabriel da SILVA, Klaus ZINNER
Publikováno v:
Eclética Química, Vol 27, Iss 1 (2018)
A polarizabilidade representa a facilidade de distorção da configuração eletrônica de uma espécie, quando condicionada a interação de um campo elétrico. A diversidade de aplicações tem motivado experimentos sistemáticos para a obtenção
Externí odkaz:
https://doaj.org/article/392423665a7d44aab4ac0f62c52cf235
Autor:
Hiléia Karla Silva de SOUZA, Emanuel Alves SOUSA, Afrânio Gabriel da SILVA, Dulce Maria de Araújo MELO, Francisco José Santos LIMA
Publikováno v:
Eclética Química, Vol 27, Iss 1 (2018)
Polarizabilidades eletrônicas foram determinadas para o sal de tifluorometanosulfonato de níquel e para o complexo com imidazol, em soluções de metanol e de acetonitrila. A partir dos espectros eletrônicos, registrados numa concentração de 10-
Externí odkaz:
https://doaj.org/article/5a6454f45dec4446a1c86e2a17288fb7
Autor:
Francisco Claudece Pereira, Francisco José Santos Lima, Ademir Oliveira da Silva, Thiago Jackson Torres Cruz, Sarah Giovanna Montenegro Lima
Publikováno v:
Periódico Tchê Química. 17:203-215
Ascorbic acid, commonly known as vitamin C, is a weak acid and natural antioxidant that plays essential biological roles in the participation of collagen formation and the absorption of iron by the body. The objective of this work was to verify, thro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d462314ced8599200440880583ebf19c
https://doi.org/10.52571/ptq.v17.n35.2020.19_lima_pgs_203_215.pdf
https://doi.org/10.52571/ptq.v17.n35.2020.19_lima_pgs_203_215.pdf
Autor:
Francisco José Santos Lima, Ufrn
Publikováno v:
Proceedings of the SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 2021 INTERNATIONAL VIRTUAL CONFERENCE.
In this work, molecular models were obtained, and the reactivity parameters of ε-caprolactam and ophenanthroline were calculated to evaluate the interaction in the formation of complex molecular compounds. It was observed that the main electron dono
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0762e536620b878909038d015c7336fb
https://doi.org/10.48141/sbjchem.21scon.01_lima.pdf
https://doi.org/10.48141/sbjchem.21scon.01_lima.pdf
Publikováno v:
Periódico Tchê Química. 15:654-659
Electronic studies in molecular systems have been used to evaluate the possibility of improvements in the efficiency of physicochemical processes of interest in electronic devices. We have studied complex molecular systems prototypes in our research
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e7f63d10c4921435f0548c8d08870a5
https://doi.org/10.52571/ptq.v15.n30.2018.658_periodico30_pgs_654_659.pdf
https://doi.org/10.52571/ptq.v15.n30.2018.658_periodico30_pgs_654_659.pdf
Publikováno v:
Periódico Tchê Química. 15:164-170
The purpose of this study was to analyze and quantify spectral parameters, the absorption bands, specifically in the uv-visible region of some N-oxide ligands. From the spectra, the area under the absorption band, the molar absorptivity, the integrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a49f2e4e0b1c8bc593fd550703ef3ea
https://doi.org/10.52571/ptq.v15.n29.2018.164_periodico29_pgs_164_170.pdf
https://doi.org/10.52571/ptq.v15.n29.2018.164_periodico29_pgs_164_170.pdf
Publikováno v:
Revista Virtual de Química. 8:1889-1912
O presente manuscrito descreve um novo procedimento teorico, utilizado para a determinacao da constante de ionizacao de acidos e bases fracos, mono ou poli funcionais. O procedimento emprega as planilhas do programa computacional EXCEL, em conjunto c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9022d1592d9183b17ffc746d240cfaba
https://doi.org/10.21577/1984-6835.20160129
https://doi.org/10.21577/1984-6835.20160129