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[PDF] Top 20 J. Braz. Chem. Soc. vol.9 número5

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J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... Many re a ders will per haps ques ti on the re le van ce of a Bra zi li an sci en ti fic jour nal when hypot he ti cal pro jec ti ons sug gest that, by the year 2000, the re will be ap p[r] ... See full document

1

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... An examination of the 1 H-NMR spectrum of compound 4a showed the following signals: H-2’ at δ 5.42 as a broad multiplet. This is due to the coupling with two protons attached on C-3’ and the NH proton. The benzylic ... See full document

4

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... 1976, 31b, 1654; (b) Kauffmann, T. Angew. Chem. Int. Ed. Engl. 1982, 21, 410; (c) Hiiro, T.; Kambe, N.; Ogawa, A.; Miyoshi, N.; Murai, S.; Sonoda, N. Angew. Chem. Int. Ed. Engl. 1987, 26, 1187; (d) Barros, ... See full document

11

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... 4. Troy, R.C.; Kel ley, M.D.; Nagy, J.C.; Mar ge rum, D.W. “Non-Metal Re dox Ki ne tics: Io di ne Mo no bro - mi de Re ac ti on with Io di de Ion and the Hydroly sis of IBr”, Inorg. Chem. 1991, 30(25), 4838-4845. ... See full document

1

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... J = 6.4 Hz, 3H); 1.10-1.30 (m, 2H); 1.40-1.55 (m, 2H); 1.57 (s, 3H); 1.67 (d, J = 1.2 Hz, 3H); 1.82-1.96 (m, 2H); 2.45 (s, 3H); 4.01-4.10 (m, 2H); 5.02 (tq, J = 1.2, 7.2 Hz, 1H); 7.34 (d, J = ... See full document

3

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... pair was incorporated in a PVC matrix onto a graphite-epoxy conductor substrate attached to the end of a Perspex R tube, using the same procedure previously described 6-9 . This electrode, which needs no internal ... See full document

5

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... 11. GAUSSIAN 92, Revision E.1, Frisch, M.J.; Trucks, G.W.; Head-Gordon, M.; Gill, P.M.W.; Wong, M.W.; Foresman, J.B.; Johnson, B.G.; Schelegel, H.B.; Robb, M.A.; Pepogle, E.S.; Gomperts, R.; Andres, J.L.; Raghavachari, ... See full document

7

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... We have studied the bevahior of the phenomenological 4f-4f intensity parameters in compounds of the Nd 3+ ion with glycine, L-aspartic acid, L-glutamic acid, L-histidine, DL-malic acid [r] ... See full document

7

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... Although the chemistry of rain water has been the subject of a number of studies, the associated particulate material has been virtually ignored, for example, this frac- tion of the atmospheric deposition, can be ... See full document

5

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... The maximum amount of adsorbed intermediates formed during allyl alcohol adsorption on the electrode surface, was observed at the adsorption potential, Eads = 0.00 V (SCE). Chronoamperom[r] ... See full document

9

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... Studies of metallic oxides highly dispersed on the sur- face of inorganic supports have received special attention in recent years 1-9 . In general this kind of material presents different properties in relation ... See full document

4

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... fractions were analysed by TLC and submitted to centrifu- gal preparative chromatography (Chromatotron) with hex- ane/dichloromethane as eluents. From the fractions 1-4 was isolated the mixture of 6 and 7 (m.p.: 85-90°, ... See full document

5

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... factors for all atoms except for the hydrogen atoms that had their positional parameters fixed as determined from Fourier difference maps and a refined single isotropic tem- perature factor common for all hydrogens. ... See full document

4

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... 6. a) Bonadies, J.A.; Carrano, C.J. J. Am. Soc. 1986, 108, 4088. b) Bonadies, J.A.; Butler, W.R.; Pecoraro, V.L.; Carrano, C.J. Inorg. Chem. 1987, 26, 1218. c) Li, X.; Lah, M.S.; Pecoraro, V.L. ... See full document

4

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... For industrial liquid effluents, color is the first indica- tion of water pollution. The industrial dumping of effluents containing dyes not only mars the natural beauty of the rivers, but is extremely toxic to aquatic ... See full document

6

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... Figure 9 shows the effect of the incidence of polychro- matic light on the voltammograms of nickel in the presence of propargyl alcohol. The interaction between the organic compound and the electrode surface ... See full document

8

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... tum mechanics and an intermolecular potential model was proposed based on ab-initio calculations. The quantum scattering calculations were carried out in the diabatic basis and no rotational to radial couplings were ... See full document

6

J. Braz. Chem. Soc.  vol.9 número5

J. Braz. Chem. Soc. vol.9 número5

... with many cations and to their remarkable anti-tumoral 2-5 , catalytic 6 , electrocatalytic 7,8 and photochemical 9 proper- ties. Nevertheless, the methods available for the synthesis of new or even well-known ... See full document

6

J. Braz. Chem. Soc.  vol.9 número6

J. Braz. Chem. Soc. vol.9 número6

... In the article Spectroscopic Study of the Interaction of Nd3+ with the Amino Acids: Phenomenological 4f-4f Intensity Parameters by S. Química[r] ... See full document

1

J. Braz. Chem. Soc.  vol.9 número3

J. Braz. Chem. Soc. vol.9 número3

... No caso es pe cí fi co da área de Qu í mi ca, na pri me i ra me ta de des te sé cu lo, a for ma ção em ní vel de pós-graduação era tí mi da e a ex pan são e con so li da ção ocor re ram nas úl ti mas duas dé ca das com ... See full document

1

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