Synthesis and computational studies of new metallo-phthalocyanines bearing dibenzoxanthenes and evaluation of their optical properties in solution and solid PMMA/ZnPc/Al nanocomposite films

Authors : Ali Reza KARIMI, Zeinab JAFARZADEH, Meysam SOURINIA, Akbar ZENDEHNAM, Azam KHODADADI, Zeinab DALIRNASAB, Mohammad SOLIMANNEJAD, Peyman ZOLGHARNEIN

Pages : 602-612

View : 24 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :New thermally stable metallo-phthalocyanines bearing dibenzoxanthenes as highly organo-solubilizing aromatic hydrocarbon substituents were successfully prepared by cyclotetramerization of corresponding phthalonitriles with anhydrous metal salts [Zninsert ignore into journalissuearticles values(CH$_{3}$COO);$_{2}$ and NiCl$_{2}$] in the presence of a catalytic amount of DBU in 2-insert ignore into journalissuearticles values(dimethylamino); ethanol. All of these phthalocyanines are soluble in some organic solvents such as DMF, DMSO, THF, CH$_{2}$Cl$_{2}$, and CHCl$_{3}$. Then we successfully prepared the polyinsert ignore into journalissuearticles values(methyl methacrylate); insert ignore into journalissuearticles values(PMMA);/ZnPc/Al nanocomposite films by incorporating Al nanoparticles into a transparent PMMA/ZnPc matrix. The structure and morphology of nanocomposite films were studied using X-ray diffraction and scanning electron microscopy. The optical absorption spectra of PMMA/ZnPc/Al nanocomposite films showed red shifting in the Q-band in the polymeric matrix. The geometrical structure of two phthalocyanines was investigated at the RHF/3-21G* computational level.
Keywords : Soluble metallophthalocyanine, dibenzoxanthene, aggregation, nanocomposite film, geometry optimization