Synthesis and two-photon absorption properties of unsymmetrical metallosalophen complexes

Several new unsymmetrical metallosalphen complexes derived from the condensation of a monoimine and salicylaldehyde in the presence of a transition metal ion as a template have been synthesized and characterized. Their linear and third-order non-linear optical (NLO) properties have been investigated in detail. With different substituted donor or acceptor groups at the 5-position of the salicylidene fragment, these metallosalophen complexes exhibit slightly different two-photon absorption (TPA) cross-section σ(2) values. Theoretical calculations based on density functional theory were also carried out to help with the interpretations of the experimental results.

Several new unsymmetrical metallosalophen complexes derived from the condensation of a monoamine and salicylaldehyde in the presence of a metal ion as a template have been synthesized and characterized. Their linear and third-order non-linear optical (NLO) properties have been investigated in detail.Figure optionsDownload as PowerPoint slide