Impromptu h-molli, Op.5 No.5

Soitinnus: Piano.

Kivikk'aho-lauluja nrot 1, 2, 6, 3, 4, 5

Digitoitu 13. 8. 2008.

Sinfonia nro 5, c

Soitinnus: orkesteri.

Pianokonsertto nro 5

Digitoitu 25. 11. 2008.

5 sånger [till medeltida tekster]

Soitinnus: mieskuoro.

Sonate f. Pft. 5. op.77

Soitinnus: piano.

Ilta, Op. 58 nro. 5

Soitinnus: Piano.

[Tripartita op. 5]

Soitinnus: orkesteri.

Impromptu h-molli, Op.5 No.6

Soitinnus: Piano.

Blomberg-lauluja, op. 49:5

Digitoitu 13. 8. 2008.

5 sonettia kamariork

Digitoitu 14. 7. 2008.

Warum [5]

Soitinnus: lauluääni, piano.

Geração de mesoporos em zeólitas ZSM-5 e seus efeitos na conversão do etanol em olefinas

Developing mesoporosity in HZSM-5 zeolites is an alternative for improving their catalytic performance on chemical reactions. In this work, alkaline and thermal treatments were used to produce mesoporosity. These treatments increased mesoporous area and volume. They also influenced the acid properties of the samples. Concerning catalytic performance, treatments modified reaction product distribution. Whereas alkaline treatment favored formation of olefins and increased propene ratio in the beginning of the reaction, thermal treatment resulted in formation of only ethylene due to the low acidity of the sample.

2-(4-IODO-2,5-DIMETOXIFENIL)-N-[(2-METOXIFENIL)METIL]ETAMINA OU 25I-NBOME: CARACTERIZAÇÃO QUÍMICA DE UMA DESIGNER DRUG

Drug trafficking and the introduction of new drugs onto the illicit market are one of the main challenges of the forensic community. In this study, the chemical profile of a new designer drug, 2-(4-iodine-2,5-dimethoxyphenyl)-n-[(2-methoxyphenyl)methyl]etamine or 25I-NBOMe was explored using thin layer chromatography (TLC), ultraviolet-visible spectrophotometry (UV-Vis), attenuated total reflection with Fourier transform infrared spectroscopy(ATR-FTIR), gas chromatography mass spectrometry (GC-MS) and electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR MS). First, the TLC technique was effective for identifying spots related to 25C-, 25B- and 25I-NBOMe compounds, all with the same retention factor, Rf ≈ 0.50. No spot was detected for 2,5-dimethoxy-4-bromoamphetamine, 2,5-Dimethoxy-4-chloroamphetamine or lysergic acid diethylamide compounds. ATR-FTIR preserved the physical-chemical properties of the material, whereas GC-MS and ESI-MS showed better analytical selectivity. ESI(+)FT-ICR MS was used to identify the exact mass (m/z428.1706 for the [M + H]+ ion), molecular formula (M = C18H22INO3), degree of unsaturation (DBE = 8) and the chemical structure (from collision induced dissociation, CID, experiments) of the 25I-NBOMe compound. Furthermore, the ATR-FTIR and CID results suggested the presence of isomers, where a second structure is proposed as an isomer of the 25I-NBOMe molecule.