Synthesis, Thermal and Light Absorption Properties of Push-Pull Azochromophores Substituted with Dendronizing Phenyl and Perfluorophenyl Fragments

Main Group Chemistry 2015
Lauma Laipniece, Valdis Kampars

4'-[N-(2-Hydroxyethyl)-N-methylamino]-2-(2-hydroxyethoxy)-4-nitroazobenzene (1) has been synthesized in azo coupling reaction. Nine different analogues of 1 has been prepared symmetrically and alternately substituted with dendritic phenyl and perfluorophenyl moieties using standard methods for ester and ether bond formation and azo coupling reaction. Thermal and light absorption properties of the synthesized azochromophores have been examined. The effect of trityl, tetrahydropyranyl, hydroxyl, pentafluorophenyloxy and 2,3,4,5,6-pentafluorobenzyl propionate moieties on glass transition, melting point and thermal stability has been proposed.

Keywords
azo compounds, fluoroaromatics, thermal properties, π interactions
DOI
10.3233/MGC-140152
Hyperlink
http://iospress.metapress.com/content/dn040136g4811r7g/?p=2c9f65cee8dc451b9fdf5f55c1ba41ac&pi=4

Laipniece, L., Kampars, V. Synthesis, Thermal and Light Absorption Properties of Push-Pull Azochromophores Substituted with Dendronizing Phenyl and Perfluorophenyl Fragments. Main Group Chemistry, 2015, Vol.14, No.1, pp.43-58. ISSN 1024-1221. e-ISSN 1745-1167. Available from: doi:10.3233/MGC-140152

Publication language
English (en)