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Mostrando ítems 61-70 de 89
Síntese de triazóis e análise estrutural de compostos organocalcogenetos triazólicos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Química - PPGQ, 2013-05-20)
In this study, we developed a synthetic route for obtaining new class of 1,2,3- triazole compounds. In the synthesis of these compounds were used flexible and modular methodologies, allowing to obtain a large number of ...
Novel insights on the physicochemical properties of eumelanins and their DMSO derivatives
(2016-11-01)
The biopigment eumelanin, ubiquitous in flora and fauna, is made up of chemically heterogeneous macromolecules based on the 5,6-dihydroxyindole and 5,6-dihydroxyindole-2-carboxylic acid building blocks. The exciting ...
Quantum chemistry simulation of the electronic properties in [Au(NH3)(2)]NO3 and [Au(NCH)(2)][AuCl4] extended unsupported complexes
(Taylor & Francis, 2020)
The understanding of closed-shell interactions has become of tremendous relevance in the ever-growing field of supramolecular chemistry. Here, we present a theoretical study in which we characterised the intermolecular ...
Photochemical radical thiol-ene click-based methodologies for silica and transition metal oxides materials chemical modification: A mini-review
(Royal Society of Chemistry, 2016-08)
Although known for more than 40 years in the polymer chemistry field, the photochemical radical thiol?ene addition (PRTEA) has been recently recognized as a chemical reaction with click characteristics. Photoinitiation ...
Sistemas supra-anfifílicos derivados de meglumina e ácido oleico: síntese, caracterização e potencial aplicação no âmbito farmacêutico
(Universidade Estadual Paulista (Unesp), 2017-10-09)
A auto-montagem é a organização dos blocos de construção que compõem um sistema, em estruturas hierarquicamente ordenadas, sem qualquer tipo de influência externa. As forças que governam esse processo de auto-montagem das ...
Observation of vinylidene emission in mixed phosphine/diimine complexes of Ru(II) at room temperature in solution
(ELSEVIER SCIENCE SALAUSANNE, 2012)
The mixed ruthenium(II) complexes trans-[RuCl(2)(PPh(3))(2)(bipy)] (1), trans-[RuCl(2)(PPh(3))(2)(Me(2)bipy)](2), cis-[RuCl(2)(dcype)(bipy)](3), cis-[RuCl(2)(dcype)(Me(2)bipy)](4) (PPh(3) = triphenylphosphine, dcype = ...
Saddle-shaped macrocycle distortion and symmetry decrease in cobalt (II) meso-tetraphenylporphyrin: structure of a dichloromethane solvate and DFT calculations
(Elsevier BVAmsterdam, 2014-11)
Many studies about porphyrins have emerged in recent years, including studies using porphyrins as building blocks for supramolecular assemblies. Understanding new solid state forms of porphyrins and the elucidation of their ...
Síntese e análise estrutural de polímeros de coordenação e compostos moleculares derivados de Hg(TeAr)2
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2012-07-27)
This work presents a study related to the synthesis and structural analysis of
coordination polymers and molecular compounds derived from Hg(TeAr)2. Was used
as starting reagents some Hg(TeAr)2, considered basic building ...
Estudio estructural de polímeros de coordinación de cu, mn, co y zn con ligante puente fumarato y ligantes auxiliares de tipo 2,2´-bipiridina
(Universidad Autónoma del Estado de México, 2019)