Buscar
Itens para a visualização no momento 21-28 of 28
Supramolecularidade de triazenos assimétricos dissubstituídos 4-(etoxicarbonilfenil)-2-(halofenil) e complexos de Ni(II), Cu(II) e Hg(II)
(Universidade Federal de Santa Maria, 2008-05-02)
Triazenes and/or triazenido ligands, strategically substituted by terminal aryl groups [-N=NN(H)-] or (-N3 --) chains and containing halogen in the ortho position and ester in the para position, were evaluated in ...
Síntese, propriedades e avaliação da autoassociação molecular de 1,3-diariltriazenos e complexos triazenidos de Cu(I), Cu(II), Ni(II) e Pd(II)
(Universidade Federal de Santa Maria, 2009-09-02)
Triazenides ligands, strategically substituted by aril groups [ N=N N(H) ] chains and containing NO2, CF3 e F groups in different positions were evaluated in relation to the occurrence of intermolecular interactions ...
Avaliação da Supramolecularidade de complexos triazenidos mononucleares e binucleares de Ag(I)
(Universidade Federal de Santa Maria, 2009-07-01)
This work presents the synthesis and the investigation of the crystalline and molecular structure of five new mononuclear or binuclear complexes of Ag(I) with monocatenated triazenido ligands. The mononuclear complexes ...
Síntese, cristalografia e propriedades de ligantes triazenos mono e biscatenados e derivados complexos de Cu(II), Ni(II) e Pd(II)
(Universidade Federal de Santa Maria, 2013-04-30)
Triazenes are a class of compounds characterized by the presence of a diazoamino functional group (N=N N) showing remarkable ability to support the stereochemical requisites of a wide variety of metal transition complexes. ...
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 e caracterização estrutural de novos haletos de telúrio e organiltelúrio(IV) com bromo e cloro
(Universidade Federal de Santa Maria, 2013-09-18)
This work describes the synthesis and characterization of new tellurium and organiltellurium
(IV) halides, whereas the halogens chlorine and bromine were used. Despite being less stable
than the analogous iodine, these ...
Efeito da topologia molecular no empacotamento cristalino de Pirazolo[1,5-a]pirimidinas
(Universidade Federal de Santa Maria, 2013-02-27)
This study shows the influence of the molecular topology of the crystal of a series of 14 pyrazolo[1,5-a]pyrimidines. The topological data were obtained from X-ray diffraction data and energy stabilization were determined ...
Síntese e análise estrutural de compostos derivados de calcogenolatos metálicos MER (M = HgII, PdII; E = Se, Te; R = aril)
(Universidade Federal de Santa Maria, 2013-01-18)
This work presents a study related to the synthesis and structural
analysis of compounds derivatives from metal chalcogenolates - MER (M = HgII,
PdII; E = Se, Te; R = aryl). In the first step of this work were ...