Characterizing the paramagnetic behavior of Cu2+ doped nickel(II) dipicolinato by using theoretical and experimental EPR and UV–vis studies

In this study, the paramagnetism in bis(hydrogeno pyridine-2,6-dicarboxylato) nickel(II) trihydrate, [Ni(Hdpc)2]·3H2O, has been investigated after doping the sample with Cu2+ ions. The g and hyperfine parameters were obtained by electron paramagnetic resonance (EPR) experiments performed at ambient...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2016-02, Vol.483, p.90-93
Main Authors: Yıldırım, İlkay, Çelik, Yunus, Karabulut, Bünyamin
Format: Article
Language:English
Subjects:
Cu2+ ions
Dipicolinic acid
EPR
Molecular orbital bonding coefficients
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Summary:In this study, the paramagnetism in bis(hydrogeno pyridine-2,6-dicarboxylato) nickel(II) trihydrate, [Ni(Hdpc)2]·3H2O, has been investigated after doping the sample with Cu2+ ions. The g and hyperfine parameters were obtained by electron paramagnetic resonance (EPR) experiments performed at ambient temperature. The study shows that Cu2+ ion defects the structure and exists interstitially in the lattice having a distorted local environment. It also shows the existence of two magnetically inequivalent Cu2+ sites. Experimental values for both EPR and optical spectrum studies were verified by using the appropriate theoretical approaches.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2015.12.032