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Síntese de cristais líquidos derivados do nitroazobenzeno: uma proposta de síntese multi-etapas aplicada às aulas de química orgânica experimental

Authors :
Cristiano, Rodrigo
Cabral, Marília Gabriela B.
Aquino, Rafael B. de
Cristiano, Cláudia M. Z.
Source :
Química Nova, Volume: 37, Issue: 1, Pages: 181-185, Published: 2014
Publication Year :
2014
Publisher :
Sociedade Brasileira de Química, 2014.

Abstract

We describe a synthetic route consisting of five steps from aniline to obtain liquid crystal compounds derived from nitroazobenzene. Syntheses were performed during the second half of the semester in organic chemistry laboratory classes. Students characterized the liquid crystal phase by the standard melting point techniques, differential scanning calorimetry and polarized optical microscopy. These experiments allow undergraduate students to explore fundamentally important reactions in Organic Chemistry, as well as modern concepts in Chemistry such as self-assembly and self-organization, nanostructured materials and molecular electronics.

Details

Language :
Portuguese
Database :
OpenAIRE
Journal :
Química Nova, Volume: 37, Issue: 1, Pages: 181-185, Published: 2014
Accession number :
edsair.od.......608..08c5ba9f2df8440af89bf4208697acbd