Synthesis of liquid crystals derived from nitroazobenzene: a proposed multistep synthesis applied to organic chemistry laboratory classes

Química Nova

Aquino, Rafael B. de¹  Universidade Federal da Paraíba, João Pessoa, Brasil¹  Cristiano, Rodrigo¹  Cabral, Marília Gabriela B.¹  Cristiano, Cláudia M. Z.¹ 

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

DOI  :  10.1590/S0100-40422014000100031

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown