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Engenharia de cristais: estudo conformacional, topológico e energético de t-butilpirazóis e bis-t-butilpirazóis
(Universidade Federal de Santa Maria, 2019-02-22)
This work presents a proposed crystallization mechanism and conformational study of regioisomers of 5(3)-aryl-3(5)-carboxyethyl-1-(1,1-dimethylethyl)-1H-pyrazole (aryl, 4-X-C6H4, where X = H, F, Cl and Br) and a series of ...
Síntese, análise estrutural, luminescência e atividade biológica de complexos de metais de transição com ligantes derivados de benzoilidrazina e feniltiossemicarbazida
(Universidade Federal de Santa Maria, 2019-01-30)
This work reports the synthesis and characterization of new complexes with 2,6-diacetylpyridine-bis(benzoylidrazone) (L1) and 2,6-diformylpyridine-bis(4-phenylthiosemicarbazone) (L2) ligands. The complexes [(L1)2Ce]Cl3.14H2O ...
Interação entre líquidos iônicos imidazolíneos e os alginatos de sódio e hidroxâmico
(Universidade Federal de Santa Maria, 2019-01-30)
This work describes the interactions between sodium alginate (ALG) and hydroxamic
alginate (AHX) with the monocationic imidazolium ionic liquids series (CnMIMBr).
From the surface tension, electrical conductivity, ...
Síntese e avaliação biológica de 1,2,3-triazóis-1,4-dissubstituídos derivados de benzocalcogenoanilinas e 2-aril-4-(azidometil)-1,3-calcogenazóis
(Universidade Federal de Santa Maria, 2019-01-31)
In the present work two new series of 1,2,3-triazoles-1,4-disubstituted 20-33 obtained by the reaction of 1,3-dipolar cycloaddition, Click-type, were synthesized between the alkaloids derived from benzocalcogenoanilines ...
Processo de adsorção de naftaleno em soluções aquosas: uma abordagem multivariada
(Universidade Federal de Santa Maria, 2019-07-31)
Naphthalene is the PAH with the simplest chemical structure, it has two aromatic rings. Thus, it serves as a standard for studies concerning this class of compounds, which present potential prejudicial to human health and ...
Síntese de 3-iodo-4H-calcogenofeno[3,2-b]indol via ciclização eletrofílica mediada por iodo de derivados de alquinil indol
(Universidade Federal de Santa Maria, 2019-07-26)
The treatment of alkynyl índoles by using iodine with electrophilic source led to 3-iodo-4H-calcogenophene[3,2-b]indoles derivates. Firstly a series of studies were performed variations to obtain the compounds containing ...
Arquiteturas de autoassociação derivadas de piridoxal e dihidrazidas: síntese e avaliações espectroscópicas e teóricas de interação com DNA
(Universidade Federal de Santa Maria, 2019-08-02)
This work is about the synthesis of bis-azomethine ligands of Schiff type derived
from pyridoxal and aliphatic dihydrazides and the subsequent synthesis of complexes
of various transition metals containing such ligands. ...
Desenvolvimento de método para determinação de resíduos de medicamentos veterinários em salmão por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-27)
The aquaculture industry has been growing, developing and highlightning in the last few years. Many
countries and international organizations have invested in developing the activity according to available
resources. ...
Investigação das propriedades fotofísicas de porfirinas meso substituídas com complexos de RuII e estudo da interação com biomoléculas
(Universidade Federal de Santa Maria, 2019-08-05)
The objective of this work was to investigate the photophysical properties of two porphyrins whose syntheses are already reported in the literature: meso-tetra(4-pyridyl)porphyrin tetra-ruthenated free-base (H2RuTPyP) and ...
Determinação multirresíduo de agrotóxicos em noz-pecã empregando método QuEChERS modificado e LC-MS/MS
(Universidade Federal de Santa Maria, 2019-08-09)
Pecan nuts is one of the few native nuts species from the American continent. The area in southern Brazil dedicated to pecan production is directly linked to the favorable climate of this region. Considering the commercialization ...