Synthesis and second-order nonlinear optical properties of new copper(II), nickel(II), and zinc(II) Schiff-base complexes. Toward a role of inorganic chromosphores for second harmonic generation
- Universite Paris-Sud, Toulouse (France)
- Universita di Cantania (Italy)
- Laboratorie de Bagneux (France)
A new Schiff-base ligand based on the condensation of diaminomaleonitrile and 4-(diethylamino)salicylaldehyde is reported with its copper, nickel, and zinc complexes. Their second-order nonlinear optical properties are investigated by electric field induced second harmonic (EFISH) and ZINDO quantum-chemical calculation to probe the role of the metal center in the nonlinearity. All of the complexes exhibit a second-order nonlinear response that is larger than that of the ligand with an hyperpolarizability {beta} value of 400 ({+-}100) 10{sup -30} cm{sup 5} esu{sup -1} for the zinc derivative at 1.34 {mu}m. Theoretical calculations indicate that the two-level model is inadequate to describe the nonlinearity in such systems. 41 refs., 3 figs., 2 tabs.
- OSTI ID:
- 369917
- Journal Information:
- Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 2 Vol. 8; ISSN CMATEX; ISSN 0897-4756
- Country of Publication:
- United States
- Language:
- English
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