Navegação Ciências Exatas e da Terra por Autor "Goncalves, Paulo Fernando Bruno"
Resultados 1-4 de 4
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3-arylisoxazolyl-5-carboxylic acid and 5-(hydroxymethyl)-3-aryl-2-isoxazoline as molecular platforms for liquid-crystalline materials
Tavares, Aline; Livotto, Paolo Roberto; Goncalves, Paulo Fernando Bruno; Merlo, Aloir Antonio (2009) [Artigo de periódico]A síntese de uma plataforma molecular para materiais líquido-cristalinos derivados do ácido 3-arilisoxazolil-5-carboxílico (1) e do 5-(hidroximetil)-3-aril-2-isoxazolina (2) é descrita. Os intermediários 1 e 2 são obtidos ... -
An evaluation of the chalcogen atom effect on the mesomorphic and electronic properties in a new homologous series of chalcogeno esters
Rampon, Daniel da Silveira; Rodembusch, Fabiano Severo; Lourega, Rogerio Vescia; Merlo, Aloir Antonio; Schneider, Paulo Henrique; Goncalves, Paulo Fernando Bruno (2010) [Artigo de periódico]A series of chalcogeno esters 1a, 6a and 6b have been synthesized in a straightforward manner. Polarized-light optical microscopy (POM) and differential scanning calorimetry (DSC) showed that these chalcogeno esters displayed ... -
Structure-property relationships of smectic liquid crystalline polyacrylates as revealed by SAXS
Pereira, Fabiano Vargas; Borsali, Redouane; Ritter, Olga Maria Schimidt; Goncalves, Paulo Fernando Bruno; Merlo, Aloir Antonio; Silveira, Nádya Pesce da (2006) [Artigo de periódico]A influência da estrutura química dos grupos mesogênicos e do tamanho dos grupos espaçadores, no comportamento de fase de uma série de cristais líquidos poliméricos de cadeia lateral (SCLCP), foram estudados utilizando-se ... -
The 1,3-dipolar cycloaddition of nitrile oxide to vinylacetic acid : computational study of transition states selectivity, solvent effects, and bicyclo formation
Toldo, Josene Maria; Merlo, Aloir Antonio; Goncalves, Paulo Fernando Bruno (2016) [Artigo de periódico]The 1,3-dipolar cycloaddition reaction is a powerful tool for the cycloaddition of nitrile oxides to olefins, and this reaction is of considerable interest to obtain isoxazolines. Density functional theory (DFT) was used ...