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Itens para a visualização no momento 11-20 of 104
Síntese, caracterização e cristaloquímica de complexos da cobre(I) e mercúrio(II) com ligantes triazenidos
(Universidade Federal de Santa Maria, 2005-07-20)
The reaction between mercury(II) acetate and 1-(3-nitrophenyl)-3-(2-fluorophenyl)triazene in a tetrahydrofuran/methanol mixture in the presence of
2,2′-bipiridylamine yields the complex [Hg(FC6H4NNNC6H4NO2)2] (1). (1) ...
Síntese de 2-(1h-pirazol-1-il)-5-(1h-pirazol-1-il-1-carbonil) piridinas
(Universidade Federal de Santa Maria, 2008-02-20)
This work describes the synthesis of a new series of 2-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il]-5-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il-1- ...
Determinação de cloridrato de propranolol em medicamentos por espectroscopia no infravermelho com calibração multivariada (PLS)
(Universidade Federal de Santa Maria, 2005-07-21)
In this work calibration multivariate models were developed with the use of the technique of partial least scores (PLS) for the dosage of tablets of propranolol hydrochloride using infrared spectroscopy. Samples were ground ...
Avaliação de fotorreatores na degradação de corantes reativos e efluente têxtil
(Universidade Federal de Santa Maria, 2004-02-27)
The continuous search for better quality of life, nowadays, implies in industrial growth e, consequently, in greater or minor degree of environmental pollution. The textile industry is responsible for part of this pollution; ...
Reação de alquinos terminais com 1,1,1-trialo-4-alcóxi-3- alquen-2-onas
(Universidade Federal de Santa Maria, 2005-02-21)
In this work a convenient method of synthesis of 9 eninones is presented, through the reaction of different acetylenes (phenylacetylene, 1-heptyne and 1-hexyne) with n-butillithium and subsequently with electrophiles ...
Síntese de 7-trifluormetil-5,6-diidrobenzo[c]acridinas
(Universidade Federal de Santa Maria, 2005-02-28)
This work describes the reactions of 1-methoxy-2-trifluoroacetyl-3,4-dihydro-naphthalene (4) with substituted anilines 5a-j to obtain a series of N-aril-2-trifluoroacetyl-3,4-diidronaphtalenes (6a-j). Intramolecular ...
Avaliação dos níveis séricos de alumínio na dieta alimentar e medicamentos de pacientes com insuficiência renal crônica
(Universidade Federal de Santa Maria, 2004-03-04)
Síntese de 2-[5-Aril-3-(E-estir-1-il)-4,5-Diidro-1H-pirazol-1-il]-4-Fenil-6-Trifluormetilpirimidinas
(Universidade Federal de Santa Maria, 2005-08-15)
The synthesis of a series of 2-[5-aryl-3-(E-styr-1-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-phenyl-6-trifluoromethylpyrimidines (where aryl = C6H5, 2-MeC6H4, 2-MeOC6H4, 4-MeOC6H4, 3,4-(MeO)2C6H3, 3,4,5-(MeO)3C6H2, 4-ClC6H4) in ...
Síntese e análise estrutural de novos plímeros de coordenação envolvendo seleninatos de metais alcalinos e alcalinos terrosos
(Universidade Federal de Santa Maria, 2007-12-03)
Seven new compounds involving the phenylseleninato ligand and alkaline and alkaline earth metals were obtained in this work: poly-phenylseleninato lithium(I) (1), catena-polybis(aqua)-phenylseleninato sodium(I) (2), ...
Separação e pré-concentração on-line para especiação de Hg em chorume por FI-CVG AAS
(Universidade Federal de Santa Maria, 2005-08-05)
In Brazil, the urban solid wastes are usually discharged on landfill sites that are percolated by rainwater. This water leaches the wastes producing an effluent that is characterized by high concentration of organic matter, ...