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

Química Nova

Rodrigo Cristiano¹  Marília Gabriela B. Cabral¹  Rafael B. De Aquino¹  Cláudia M. Z. Cristiano¹ 

[1] ,Universidade Federal da Paraíba Departamento de Química João Pessoa PB ,Brasil

关键词: liquid crystals;    multistep synthesis;    azo compounds;   

DOI  :  10.1590/S0100-40422014000100031

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License