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Síntese, análise estrutural e caracterização de seleninatos de manganês (II)
(Universidade Federal de Santa Maria, 2012-03-09)
In this study three novel compounds were synthesized and characterized from pre-ligands phenylseleninic acid 1, 4-methylphenyilseleninic acid 2 , 4-chlorophenylseleninic acid 3 and 4-bromophenylseleninic acid 4. The reactions ...
Hidratação reversível de complexos fenilseleninatos para- substituído de cobalto(II)
(Universidade Federal de Santa Maria, 2013-08-30)
In this study eight novel compounds were synthesized and characterized from pre-ligands pheylseleninic acid 1, 4-t-butiphenyilseleninic acid 2, 4-methylphenyilseninic acid 3 and 4-clorophenylseleninic acid 4. The ability ...
Cinética de craqueamento de hidrocarbonetos (C8) utilizando micropirólise em tubo de vidro selado aplicação em modelagem geoquímica
(Universidade Federal de Santa Maria, 2010-12-07)
One of the most fundamental problems in petroleum systems modeling, related to Oil
Exploration, is to determine the limits of space and time of hydrocarbon generation in
sedimentary basins. The aim of this study is to ...
Síntese e caracterização de iodetos de diteluroéteres - análise da estrutura supramolecular
(Universidade Federal de Santa Maria, 2012-02-28)
This work describes the synthesis and characterization of thirteen new compounds belonging to the class of ditelluroethers iodides. The starting materials (ditelluroethers) were synthesized by a method few mentioned in the ...
Síntese de 2-Benzil(metil)tio-6-aril(metil)pirimidinas-4-carboxilato de Etila e seus Ácidos Derivados
(Universidade Federal de Santa Maria, 2012-08-10)
This work presents a simple and versatile synthetic strategy for the preparation of a novel series of Ethyl 2-Benzyl(methyl)tiopyrimidines-4-carboxylate 6-substituted and their acids derivatives.
The Ethyl 2-Benzyl(meth ...
Síntese de derivados de benzo[b]furano promovida por t-BuOK
(Universidade Federal de Santa Maria, 2023-01-20)
In this work, we report the study developed for the preparation of benzo[b]furan
derivatives via intramolecular double cyclization reaction promoted by tert-BuOK. First, 3-
((butylselanyl)methyl)-2-(phenylethynyl)benzofuran ...
Síntese one pot de 1,3,4-oxadiazóis derivados de L-aminoácidos e benzoil-hidrazidas
(Universidade Federal de Santa Maria, 2012-07-20)
In the following work, a range of 1,3,4-oxadiazles 2,5-disubstituted 3 was
prepared, using a one pot approach, from L-amino acids 1(a-e) and 2-benzoylhydrazides,
using POCl3 as dehydrating agent.
The study involved the ...
Método multirresíduo para agrotóxicos e compostos relacionados em ar empregando trapeamento em sorvente polimérico e GC-MS/MS
(Universidade Federal de Santa Maria, 2013-10-25)
While pesticides are applied to crops in order to control pests and thereby increase productivity, these substances can undergo processes such as volatilization, dispersion and transport, reaching the atmosphere, soil and ...
Desenvolvimento e validação de métodos voltamétricos sequenciais para a determinação de elementos em matrizes complexas
(Universidade Federal de Santa Maria, 2013-08-07)
Toxic elements are in continuous accumulation in the environment mainly due to anthropogenic activities. In this work, a voltammetric method of sequential analysis for application in matrices of complex characteristics was ...
Combustão iniciada por micro-ondas com radiação focalizada (FMIC) para decomposição de condimentos de origem vegetal para posterior determinação de metais por ICP OES
(Universidade Federal de Santa Maria, 2011-03-18)
In this work the focused microwave induced combustion (FMIC) method was
proposed for decomposition of spices, as Origanum vulgare L., Petrosolium
sativum, Ocimum basilicum, Coriandrum sativum L. e Allium fistolosum for ...