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J. Braz. Chem. Soc. vol.17 número6 pt a01v17n6
... Há treze anos atrás, mais precisamente no dia 4 de novembro de 1992, no Forte de Copacabana, Rio de Janeiro, a comunidade científica dedicada à pesquisa dos materiais de carbono, no Bras[r] ... See full document
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J. Braz. Chem. Soc. vol.17 número8
... All of the available electrochemical and spectroscopic data suggest that the oxidized forms of the complexes contain coordinated phenoxyl radicals. In no instance has a metal- centered o[r] ... See full document
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J. Braz. Chem. Soc. vol.17 número7
... A Química, pelo crescimento de sua base e de sua produção científica, pelas diferentes formas com que permeia o território industrial, por sua presença constitutiva em tecnologias portad[r] ... See full document
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J. Braz. Chem. Soc. vol.17 número8
... Firstly, whereas the transition metal cofactors of natural proteins are frequently shielded from solvent by being buried within the protein matrix, the histidine metal binding sites of H[r] ... See full document
6
J. Braz. Chem. Soc. vol.17 número7
... 15. Salazar, K. J. M.; Paredes, G. E. D.; Lluncor, L. R.; Young, M. C. M.; Kato, M. J.; Phytochemistry 2005, 66, 573. 16. Tanaka, T.; Asai, F.; Iinuma, M.; Phytochemistry 1998, 49, 229. 17. Cheng, M. ... See full document
8
J. Braz. Chem. Soc. vol.17 número8
... Since in general the two species are characterized by different free energies, the photoinduction process yields a metastable product and a thermally induced relaxation process to the gr[r] ... See full document
12
J. Braz. Chem. Soc. vol.17 número7
... N , N ’-bis(2- pyridinecarboxamide)-1,2-benzene (H 2 BPB) was found to have a selective and sensitive behavior towards Ho(III) ion, in comparison to a large number of lanthanide, inner t[r] ... See full document
6
J. Braz. Chem. Soc. vol.17 número8
... Farkar, O.; Tomasi, J.; Barone, V.; Cossi, M.; Cammi, R.; Mennucci, B.; Pomelli, C.; Adamo, C.; Clifford, S.; Ochterski, J.; Petersson, G. A.; Ayala, P. Y.; Cui, Q.; Morokuma, K.; Malick, D. K.; Rabuck, A. ... See full document
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J. Braz. Chem. Soc. vol.17 número7
... The potentiometric selectivity coefficients, which reflected the relative response of the membrane sensor towards the primary ion, over other ions present in solution, perhaps are the mo[r] ... See full document
6
J. Braz. Chem. Soc. vol.17 número8
... software. In all runs, control experiments (blank runs) were always carried out likewise, i.e., in the absence of the complex. All reactions were carried out at least in duplicate in 50 mL glass reactors. Initially, an ... See full document
7
J. Braz. Chem. Soc. vol.17 número8
... Roger Alberto accomplished the degree of “dipl. chem ETH” in 1982 and received his PhD from the same University in 1988. 1989 he moved to the Technical University of Munich as an “Alexander von Humboldt fellow” in ... See full document
15
J. Braz. Chem. Soc. vol.17 número7
... mg) was obtained from fractions 17-18. Fraction V (hexane/EtOAc 1:1, 259.0 mg) was chromatographed on a Sephadex LH-20 column using hexane/CH 2 Cl 2 (1:4) followed by CH 2 Cl 2 /acetone (3:2) as solvents. ... See full document
33
J. Braz. Chem. Soc. vol.17 número8
... Since vanadate and fluoride are proposed to act as transition state and nucleophile mimics, respectively, the observed differences in inhibition kinetics indicate subtle but distinct var[r] ... See full document
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J. Braz. Chem. Soc. vol.17 número7
... on Gemini-200 (200 MHz) Varian Instruments or on Brucker avance DRX (400 MHz) with TMS as internal reference. The coupling constant (J) is in Hertz (Hz). The IR spectra were recorded on a Nicolet Magna-IR-760 ... See full document
4
J. Braz. Chem. Soc. vol.17 número8
... Synthesis and Crystal Structures of new Complex Salts Containing both Cationic and Anionic Tellurium(IV) Species: The Role of Secondary Bonds in the Arrangement of.. Tellurium Based Tect[r] ... See full document
9
J. Braz. Chem. Soc. vol.17 número7
... The authors thank to Prof. José Carlos de Freitas and the technical staff of CEBIMar-USP for the many facilities during the sponge collection. The authors are also gratefully indebted to Dr. Norrie Pearce and Prof. Brent ... See full document
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J. Braz. Chem. Soc. vol.17 número8
... This paper describes in a somewhat personal way an overview of the use of electron paramagnetic resonance (EPR) spectroscopy, including high-frequency and -field EPR (HFEPR) to unravel t[r] ... See full document
15
J. Braz. Chem. Soc. vol.17 número6
... This special issue of the Journal of the Brazilian Chemical Society ( JBCS ) publishes selected papers presented at the III Brazilian Carbon Congress (CARBONO 2005), Rio de Janeiro, Nov[r] ... See full document
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J. Braz. Chem. Soc. vol.17 número6
... In this study we have prepared novel TiO 2 /poly(furfuryl alcohol) nanocomposite, based on the sol-gel process, that was used as precursor for a high porous carbon material, obtained fro[r] ... See full document
7
J. Braz. Chem. Soc. vol.17 número6
... Carbon materials of high performance and low production cost can be realized, through carefully selecting suitable catalysts and catalytic processes in the synthesis of carbon feed, carb[r] ... See full document
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