Eixos mobilizadores em química Mobilizing axes in chemistry

Autor: Jailson B. de Andrade, Solange Cadore, Paulo C. Vieira, César Zucco, Ângelo C. Pinto

Publikováno v: Química Nova, Vol 26, Iss 3, Pp 445-451 (2003)

Over the last five years there have been significant changes in higher education in Brazil as well as in research funding. As a contribution to the development of Science and Technology, and aiming to portray Chemistry today in Brazil, in the context

Externí odkaz: https://doaj.org/article/015d9e6fb5f241d09ebd3a72fdcfbb08

Synthetic methodologies leading to porphyrin-quinone conjugates

Autor: Ângelo C. Pinto, Maria G. P. M. S. Neves, Mariana F. C. Cardoso, Luana da S. M. Forezi, José A. S. Cavaleiro, Vitor F. Ferreira, Fernando de C. da Silva

Publikováno v: Journal of Porphyrins and Phthalocyanines. 20:167-189

This review focuses on synthetic strategies that have been established for the preparation of porphyrin-quinone conjugates of potential biological significance and as donor–acceptor compounds for electron transfer processes.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44ba1b7218fb6488119643e4470946f4
https://doi.org/10.1142/s1088424616300093

Identification of reddish pigments in octocorals by Raman spectroscopy

Autor: Harlem V. Castro, Vanessa E. de Oliveira, Luiz Fernando C. de Oliveira, Beatriz G. Fleury, Howell G. M. Edwards, Jussara P. Barbosa, Bruno G. Lages, Lenize F. Maia, Ângelo C. Pinto

Publikováno v: Journal of Raman Spectroscopy. 42:653-658

The nature of the pigments in octocorals has been investigated by Raman spectroscopy, where laser excitation at 632.8 and 1064 nm were used to characterize the colored components present in the skeleton of the exotic pink-yellow soft coral Chromoneph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4f0019902c4e0db8edfc72a59974208
https://doi.org/10.1002/jrs.2758

'Façamos Químicos' [Let's Make Chemists]: the 'birth certificate' of chemistry undergraduate courses in Brazil

Autor: Ângelo C. Pinto, Nadja Paraense dos Santos, Ricardo Bicca de Alencastro

Publikováno v: Química Nova, Vol 29, Iss 3, Pp 621-626 (2006)
Química Nova v.29 n.3 2006
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 29, Issue: 3, Pages: 621-626, Published: JUN 2006

This work presents a brief retrospective of José de Freitas Machado's prominent role in the creation, development and consolidation of Chemistry undergraduate courses in Brazil. Freitas Machado defended in many occasions the importance of chemical s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e07652610d09b096d365bdb01bca206
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000300035

A tetranorfriedolabdane diterpene from Vellozia stipitata

Autor: Moacir G. Pizzolatti, Victor Marcos Rumjanek, Ângelo C. Pinto, Octavio A. C. Antunes

Publikováno v: Phytochemistry. 42:771-774

Treatment of the methanolic extract of Vellozia stipitata with base gave a new norditerpene with a friedolabdane skeleton. The structure was established on the basis of its spectral data and chemical transformations.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70c2ff9f8203a85d6f999db3f77a3a5a
https://doi.org/10.1016/0031-9422(95)00907-8