ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

DFT analysis and electronic properties, and synthesis of tetra (9-phenyl-9H-xanthen-9-yl) oxy peripheral-substituted zinc phthalocyanine

Derya Güngördü Solğun, Mehmet Salih Keskin, Ümit yıldıko, and Mehmet Salih Ağırtaş

Department of Chemistry, Faculty of Science, Van Yuzuncu Yıl University, Van, Turkey

E-mail: salihagirtas@hotmail.com

Received: 1 August 2019  Accepted: 30 January 2020

Abstract:

The 4-((9-phenyl-9H-xanthene-9-yl) oxy) phthalonitrile compound was synthesized and characterized as starting material. Zinc phthalocyanine was obtained by reaction of 4-((9-phenyl-9H-xanthen-9-yl) oxy) phthalonitrile with Zn(CH₃COO)₂. Novel compounds were characterized using mass spectra, UV–Vis spectroscopy, ¹H-NMR, ¹³C NMR, and infrared spectroscopy. The fluorescence, emission, excitation, and absorption spectra of the zinc phthalocyanine compound were studied in tetrahydrofuran (THF). The determination of these properties is very useful for photodynamic therapy applications. Also, zinc phthalocyanine (Zn-Pc) was optimized with the basic set of 6-311G and LanL2DZ of the Density functional theory (DFT). The energy band-gap HOMO–LUMO of the molecule was determined. Chemical indices were calculated using HOMO–LUMO energies. The electrophilic region and the nucleophilic region were defined from the molecular electrostatic potential (MESP) maps. Dipole moment components have been calculated and can be considered as potential candidates for the design of non-linear optical materials.

Keywords: Phthalocyanine; Fluorescence; Synthesis; Solubility; Computation; Non-linear

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01087-4

Chemical Papers 74 (8) 2389–2401 (2020)