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Síntese e caracterização de complexos de rênio e tecnécio contendo ligantes arilcalcogenolatos (Se, Te)
(Universidade Federal de Santa Maria, 2017-12-06)
Rhenium and technetium coordination chemistry containing arylthiolate ligands are long known in the
literature. However, there is a limited understanding regarding the correlates containing heavier
chalcogens (Se and ...
Estudo molecular e supramolecular de complexos triazenidos com metais de transição: uma abordagem voltada à engenharia de cristais
(Universidade Federal de Santa Maria, 2017-09-15)
This work shows the synthesis of unpublished Zn(II), Cd(II) and Pd(II) complexes with
bis-cated triazene molecules, including macrocycles. Together these compounds, a series of
symmetrical ortho-halogenated single-catenad ...
Determinação de compostos organosulfurados como marcadores dos processos de envelhecimento em matrizes asfálticas brasileiras
(Universidade Federal de Santa Maria, 2018-03-01)
The involvement of organosulfur species in the aging processes of Brazilian asphalt cements was studied using analytical methodologies such as ultra high performance liquid chromatography with atmospheric pressure ...
Obtenção e estudo da reatividade de ciano-acrilatos de etila e compostos relacionados com ênfase na síntese de N- e O-heterociclos
(Universidade Federal de Santa Maria, 2017-09-19)
This work reports the results of the reactivity study of the ethyl cyano-acrylates (3), obtained from the Horner-Wadsworth-Emmons (HWE) olefination reaction applied to α,β-unsaturated ketones (1) with diethyl (cyanomethy ...
Determinação multirresíduo de agrotóxicos em milho empregando método QuEChERS modificado e LC-MS/MS
(Universidade Federal de Santa Maria, 2017-09-22)
Corn is a cereal used in human and animal food, and moreover, as a source of raw material for other by-products, acquiring global importance. By presenting a distinct centesimal composition when compared with others cereals, ...
Desenvolvimento de método para determinação de paraquate, diquate, clormequate e mepiquate em cevada e trigo utilizando HILIC-UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2018-07-20)
Quaternary ammonium compounds (QUATs) constitute an important class of agrochemicals that include paraquat, diquat, chlormequat and mepiquat. Among these, paraquat is one of the most well-known herbicides in the world, ...
Arquiteturas metalo-supramoleculares em derivados de aroilbistioureias
(Universidade Federal de Santa Maria, 2018-08-03)
This work presents the synthesis and characterization of twenty-six compounds divided into two main
groups. The first one approaches compounds containing the oxidorhenium(V) {ReO}3+ moeity and the
ligands benzoyl(N,N-d ...
Síntese e avaliação fotofísica de compostos fulereno[60]-glicoconjugados
(Universidade Federal de Santa Maria, 2018-09-19)
In the midst of a variety of alternative therapies in the treatment of several diseases, the photodynamic therapy appears as a versatile protocol. This therapy uses the absorptive properties of photoactive molecules, called ...
Síntese, caracterização e aplicação de solventes eutéticos em reações envolvendo formação ou derivatização de heterociclos
(Universidade Federal de Santa Maria, 2016-07-15)
This work describes the synthesis, characterization and application of eutectic solvents in reactions
involving heterocycles. The chosen solvents consisted of a eutectic mixture of choline chloride (ChCl)
with different ...
Avaliação de métodos de preparo de amostras para posterior determinação de contaminantes inorgânicos em cápsulas de uso farmacêutico
(Universidade Federal de Santa Maria, 2014)
In this work, sample preparation methods were proposed, microwave-induced combustion (MIC) and microwave-assisted wet digestion (MAWD), for further Br, Cl, Cr, Cu, I and Mn determination in pharmaceutical capsules. For Cl, ...