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Alireza Karimi

Alireza Karimi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-5006-8642
Education: PhD.
ScopusId: 57217189368
Faculty: Science
Address: Arak University
Phone:

Research

Title
Synthesis and computational studies of new metallo-phthalocyanines bearing dibenzoxanthenes and evaluation of their optical properties in solution and solid PMMA/ZnPc/Al nanocomposite lms
Type
JournalPaper
Keywords
Soluble metallophthalocyanine, dibenzoxanthene, aggregation, nanocomposite lm, geometry optimization
Year
2016
Journal Turkish Journal of Chemistry
DOI
Researchers Akbar Zendehnam ، Alireza Karimi ، Zeynab Jafarzadeh ، Meysam Sourinia ، Azam Khodadadi ، Zeinab Dalirnasab ، Mohammad Solimannejad ، Peyman Zolgharnein

Abstract

New thermally stable metallo-phthalocyanines bearing dibenzoxanthenes as highly organo-solubilizing aro- matic hydrocarbon substituents were successfully prepared by cyclotetramerization of corresponding phthalonitriles with anhydrous metal salts [Zn(CH3COO)2 and NiCl2 ] in the presence of a catalytic amount of DBU in 2-(dimethylamino) ethanol. All of these phthalocyanines are soluble in some organic solvents such as DMF, DMSO, THF, CH2 Cl2 , and CHCl3 . Then we successfully prepared the poly(methyl methacrylate) (PMMA)/ZnPc/Al nanocomposite _lms by incorporating Al nanoparticles into a transparent PMMA/ZnPc matrix. The structure and morphology of nanocom- posite _lms were studied using X-ray diffraction and scanning electron microscopy. The optical absorption spectra of PMMA/ZnPc/Al nanocomposite _lms 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.