journal article·1996-01-01

Synthesis and Second-Order Nonlinear Optical Properties of New Copper(II), Nickel(II), and Zinc(II) Schiff-Base Complexes. Toward a Role of Inorganic Chromophores for Second Harmonic Generation

Pascal G. Lacroix, Santo Di Bella, Isabelle Ledoux

Chemistry of Materials· Volume 8· Issue 2
Publisher page

Abstract

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 calculations to probe the role of the metal center in the nonlinearity. All the complexes exhibit a second-order nonlinear response that is larger than that of the ligand with an hyperpolarizability (β) value of 400 (±100) 10 - 30 cm 5 esu - 1 for the zinc derivative at 1.34 μm. Theoretical calculations indicate that the two-level model is inadequate to describe the nonlinearity in such systems.
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Research context

OpenAlex topics: Nonlinear Optical Materials Research · Chemical synthesis and pharmacological studies · Nonlinear Optical Materials Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratoire de Chimie Inorganique, Université Paris-Sud, CNRS URA 420, 91405 Orsay, France, and Laboratoire de Chimie de Coordination, CNRS, 205 route de Narbonne, 31077 Toulouse cedex, France

Dipartimento di Scienze Chimiche, Università di Catania, 95125 Catania, Italy

Laboratoire de Bagneux, CNET, 196 Avenue Henri Ravera, 92220 Bagneux, France

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