NDLI: Synthesis, characterization, enhanced photoluminescence, antimicrobial and antioxidant activities of novel Sm(III) complexes containing 1-(2-hydroxy-4,6-dimethoxyphenyl)ethanone and nitrogen containing ancillary ligands

Content Provider	Springer Nature Link
Author	Nandal, Poonam Kumar, Rajesh Khatkar, Avni Khatkar, S. P. Taxak, V. B.
Copyright Year	2015
Abstract	Two novel ternary Sm(III) complexes, Sm(HDMPE)$_{3}$Phen (C1) and Sm(HDMPE)$_{3}$Bath (C2) were successfully synthesized by adopting solution-precipitation method. The synthesized complexes were investigated by various techniques including elemental analysis, FT-IR, $^{1}$H-NMR and photoluminescence spectroscopy techniques. The luminescence decay time and energy transfer mechanism of the complexes were also investigated. Both these complexes exhibit pure sharp emission bands from the intra f–f transitions of samarium ion, $^{4}$G$_{5/2}$ → $^{6}$H$_{5/2}$ (564 nm), $^{4}$G$_{5/2}$ → $^{6}$H$_{7/2}$ (600 nm) and $^{4}$G$_{5/2}$ → $^{6}$H$_{9/2}$ (646 nm) on monitoring the excitation at 373 nm, in the solid state at room temperature. The Sm(III) ion could be sensitized efficiently by β-hydroxyketone ligand, 1-(2-hydroxy-4,6-dimethoxyphenyl)ethanone (HDMPE) and the introduction of ancillary ligand 1,10-phenanthroline (Phen) or bathophenanthroline (Bath) resulted in enhanced photoluminescence. The complex, Sm(HDMPE)$_{3}$Bath showed higher emission intensity and longer life time (τ) than Sm(HDMPE)$_{3}$Phen complex. The photoluminescence emission spectra show that these ternary complexes might be promising candidate in advanced displays and lighting systems. Moreover, the antimicrobial and antioxidant activities of these complexes were studied. The results reveal that complex C2 exhibited excellent antimicrobial and antioxidant activities.
Starting Page	878
Ending Page	885
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	27
Issue Number	1
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2015-10-12
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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