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Estrutura supramolecular de cristais multicomponentes derivados do ácido salicílico e do ibuprofeno
(Universidade Federal de Santa Maria, 2017-03-17)
This work presents the study of multicomponent crystals formed by salicylic acid (AS) with 1,2-Phenylenediamine (FEN) and 3-Amino-1,2-4-1H-triazole (TRIA) as amines; and rac-ibuprofen (IBU) with 3-amino-5-methyl-1H-pyrazole ...
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This work shows the synthesis of unpublished Zn(II), Cd(II) and Pd(II) complexes with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 ...