Analise conformacional de modelos de lignina



Document title: Analise conformacional de modelos de lignina
Journal: Quimica nova
Database: PERIÓDICA
System number: 000197770
ISSN: 0100-4042
Authors: 1
1
Institutions: 1Universidade Federal de Juiz de Fora, Departamento de Quimica, Juiz de Fora, Minas Gerais. Brasil
Year:
Season: Jul-Ago
Volumen: 24
Number: 4
Pages: 480-490
Country: Brasil
Language: Portugués
Document type: Artículo
Approach: Teórico, descriptivo
English abstract The conformational equilibrium for two 5,5' biphenyl lignin models have been analyzed using a quantum mechanical semiempirical method. The gas phase and solution structures are discussed based on the NMR and X-ray experimental data. The results obtained showed that the observed conformations are solvent-dependent, being the geometries and the thermodynamic properties correlated with the experimental information. This study shows how a systematic theoretical conformational analysis can help to understand chemical processes at a molecular level
Disciplines: Química
Keyword: Fisicoquímica y química teórica,
Química orgánica,
Lignina,
Análisis conformacional,
Solventes
Keyword: Chemistry,
Organic chemistry,
Physical and theoretical chemistry,
Lignin,
Conformational analysis,
Solvents
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