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Abstract
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Recently, there has been an increased interest in the chemistry of transition metal
complexes containing N2O2 coordination sites such as salicylidenes. Salicylidenes such as
salophens are easily prepared from condensation reaction of 1,2-phenylenediamine or their
derivatives with salicylaldehyde. Salophen metal complexes are formed by the reaction of both
main and transition metal ions. The preparation method of theses complexes are easy and simple.
A variety of these complexes have found applications as optical and electroluminescent
materials, catalytic and biological activities .
Herein, the effect of Co(II) ion on the electronic properties of two new salophen ligands
was experimentally and theoretically evaluated. To comparison of Co complexes with the
ligands for potential use in optical devices such as solar cells, the energy of HOMO and LUMO
orbitals was calculated at the DFT level. The results indicated band gaps of complexes decreases
and so they can be used in organic electronics.
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