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Análise das ligações de hidrogênio em sais complexos e polímeros de coordenação do íon ditionato
(Universidade Federal de Santa Maria, 2013-08-12)
In this work six aqua complexes of the transition metals Fe2+, Co2+, Ni2+, Cu2+, Zn2+ and Cd2+
containing the dithionate ion were synthesized and characterized through metathesis reactions
in aqueous solution between ...
Estudo de método multirresíduo para determinação de agrotóxicos em águas superficiais por SPE e GC-MS/MS
(Universidade Federal de Santa Maria, 2013-07-30)
Modern agriculture started using different techniques and materials in order to
minimize losses in production and meet the growing demand for food, combining
productivity and profitability. However, the indiscriminate ...
Determinação de resíduos de agrotóxicos em suco de laranja integral empregando método QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2013-03-05)
Não foi possível inserir o abstract.
Síntese de triazolopirimidinas 7-triclorometil e triazolopirimidinonas substituídas a partir de reações entre 4-alcóxi-1,1,1-tricloro-3-alquen-2-onas e 3-amino-1H-1,2,4-triazóis
(Universidade Federal de Santa Maria, 2013-08-02)
A synthetic strategy was developed for obtaining a series of new 7-
trichloromethyl-[1,2,4]-triazolo-[1,5-a]pyrimidines substituted from cyclocondensation
reaction between 4-alkoxy-1,1,1-trichloro-3-alken-2-ones (enones ...
Formação de agregados de líquidos iônicos dicatiônicos derivados do imidazolíneo em água
(Universidade Federal de Santa Maria, 2013-05-16)
This paper presents the study of influence of molecular structure of ionic liquid-type Gemini imidazolium ìn the formation of aggregates in aqueous solution. The aggregation behavior was investigated through differential ...
Aplicação de polímeros na construção de nanomateriais híbridos auto-organizados
(Universidade Federal de Santa Maria, 2013-02-22)
In this work the single-step/single-phase synthesis of hybrid organic-inorganic core-shell gold nanoparticles (AuNPs), facilitated by amino-functionalized amphiphilic block copolymers that simultaneously play the roles of ...
Síntese e caracterização estrutural de clusters derivados de fenilcalcogenolato de cobre(I)
(Universidade Federal de Santa Maria, 2013-08-09)
In this work the synthesis and structural analysis of new copper(I) phenylchalcogenolate clusters will be presented. The reaction between sodium phenylchalcogenolate and copper(I) chloride generates a basic building block ...
Estudo de método para determinação de resíduos de agrotóxicos em uva por GC-MS
(Universidade Federal de Santa Maria, 2013-07-29)
The regulatory agencies are becoming increasingly stringent as regards the quality of the food. Thus, the development of analytical methods that help monitoring of pesticide residues, and it is essential in routine ...
[2] [N,N,N ,N -tetraalquilsuccinamida] rotaxa [1,7,14,20-tetraaza-2,6,15,19-tetraoxo-3,5,9,12,16,18,22,25-tetrabenzocicloexacosano]: síntese e estrutura
(Universidade Federal de Santa Maria, 2013-07-26)
This work presents the synthesis of five new planned [2]rotaxanes whith
thread derivates succinamide [R1R2NC(O)CH2CH2C(O)NR1R2, where R1 = R2 =
Pr, i-Pr, Bu, i-Bu e R1 = CH2Cy e R2 = CH2Ph]. The compounds were obtained
by ...
Comportamento químico de azóis trialoacetil/trifluormetil substituídos em reações de alilação: síntese de álcoois trialometil heteroaril homoalílicos
(Universidade Federal de Santa Maria, 2013-03-01)
The present work reports the synthesis of homoallylic alcohols derived from trihaloacetyl/trifluormethyl substituted azoles employing a simple methodology, with excellent cost benefit and able to furnish the desired products ...