Appropriate functionalization of the cyclometalated ligand, L, and the choice of the ancillary ligand, X, allows the dipolar second-order nonlinear optical response of luminescent [PtLX] complexes - in which L is an N^C^N-coordinated 1,3-di(2-pyridyl)benzene ligand and X is a monodentate halide or acetylide ligand - to be controlled. The complementary use of electric-field-induced second-harmonic (EFISH) generation and harmonic light scattering (HLS) measurements demonstrates how the quadratic hyperpolarizability of this appealing family of multifunctional chromophores, characterized by a good transparency throughout much of the visible region, is dominated by an octupolar contribution. Minding our L and X: Appropriate functionalization of the cyclometalated 1,3-di(2-pyridyl)benzene ligand, L, and the choice of the ancillary X ligand allow the dipolar second-order nonlinear optical response of [PtLX] complexes to be controlled (see figure; MLCT=metal-to-ligand charge transfer, ILCT=Intraligand charge transfer). Copyright

Tuning the Dipolar Second-Order Nonlinear Optical Properties of Cyclometalated Platinum(II) Complexes with tridentate N^C^N Binding Ligands / E. Rossi, A. Colombo, C. Dragonetti, S. Righetto, D. Roberto, R. Ugo, A. Valore, J.A.G. Williams, M.G. Lobello, F. De Angelis, S. Fantacci, I. Ledoux Rak, A. Singh, J. Zyss. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - 19:30(2013), pp. 9875-9883. [10.1002/chem.201301131]

Tuning the Dipolar Second-Order Nonlinear Optical Properties of Cyclometalated Platinum(II) Complexes with tridentate N^C^N Binding Ligands

E. Rossi;A. Colombo;C. Dragonetti;S. Righetto;D. Roberto;R. Ugo;A. Valore;
2013

Abstract

Appropriate functionalization of the cyclometalated ligand, L, and the choice of the ancillary ligand, X, allows the dipolar second-order nonlinear optical response of luminescent [PtLX] complexes - in which L is an N^C^N-coordinated 1,3-di(2-pyridyl)benzene ligand and X is a monodentate halide or acetylide ligand - to be controlled. The complementary use of electric-field-induced second-harmonic (EFISH) generation and harmonic light scattering (HLS) measurements demonstrates how the quadratic hyperpolarizability of this appealing family of multifunctional chromophores, characterized by a good transparency throughout much of the visible region, is dominated by an octupolar contribution. Minding our L and X: Appropriate functionalization of the cyclometalated 1,3-di(2-pyridyl)benzene ligand, L, and the choice of the ancillary X ligand allow the dipolar second-order nonlinear optical response of [PtLX] complexes to be controlled (see figure; MLCT=metal-to-ligand charge transfer, ILCT=Intraligand charge transfer). Copyright
chromophores; density functional calculations; ligand effects; nonlinear optics; platinum
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/231795
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