Symmetric tetraalkynylated anthracenes and the process for preparing the same for sensing and optoelectronic applications

A symmetric tetraalkynylated anthracene derivative having general Formula III:

• wherein:
• R is selected from but not limited to hydrogen, alkyl, halo, aryl, substituted aryl, hetroaryl;
• an alkyl is selected from but not limited to methyl, ethyl, isopropyl, cyclopentyl, cyclohexyl, amino, N—N dimethyl, trimethyl silyl, trifluoromethyl;
• an aryl is selected from but not limited to phenyl, chloro phenyl, bromo phenyl, methyl benzene, ethyl benzene, methoxy benzene, N—N dimethyl aniline, toluly, 1-Napthyl, anthracenyl, biphenyl, benzophenone, triphenyl amine;
• a heteroaryl group is selected from but not limited to thiophene, furan, pyrole, pyridine, imidiazole, benzimidazole, quinolone, isoquinoline;
• a halo is selected from but not limited to chloro, Bromo, fluoro;
• said anthracene derivative of Formula III is a channel material for sensors and optoelectronic devices;
• and
• wherein said symmetric tetraethynylated anthracenes show positive solvatochrism and halochromism.