Synthesis, characterization and photophysical studies of zinc(II) complexes derived from a hydralazine hydrazone

Sunil M. Patil, Ramesh S. Vadavi, Umashri Kendur, Geeta H. Chimmalagi, G. H. Pujar, Suresh D. Kulkarni, M. Nethaji, Sharanappa Nembenna, S. R. Inamdar, Kalagouda B. Gudasi

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In the present study, we report two novel mononuclear zinc(II) complexes (1 and 2) obtained by reacting (E)-1-(phenyl(pyridin-2-yl)methylene)-2-(phthalazin-1-yl)hydrazine (L) with ZnCl2 and Zn(NO3)2∙6H2O respectively. Photophysical properties of the compounds were studied in both solution and solid phase. The fluorescence absolute quantum yield of the complexes in solution varies in the order 1 (0.01) < 2 (0.030), on the other hand in the solid state it varies in the order 2(0.034) < 1(0.69). Quenching of fluorescence intensity of 2 in the solid-state has been attributed to intense and extensive non-covalent interactions present in the crystal structure. Theoretical calculations, density functional theory (DFT) and time- dependent density functional theory (TD-DFT) were also performed to support the experimental findings.

Original languageEnglish
Pages (from-to)225-230
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Publication statusPublished - 15-01-2018


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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