Premium
Tuning the Dipolar Second‐Order Nonlinear Optical Properties of Cyclometalated Platinum(II) Complexes with Tridentate N^C^N Binding Ligands
Author(s) -
Rossi Ester,
Colombo Alessia,
Dragonetti Claudia,
Righetto Stefania,
Roberto Dominique,
Ugo Renato,
Valore Adriana,
Williams J. A. Gareth,
Lobello Maria Grazia,
De Angelis Filippo,
Fantacci Simona,
LedouxRak Isabelle,
Singh Anu,
Zyss Joseph
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201301131
Subject(s) - hyperpolarizability , chemistry , chromophore , acetylide , ligand (biochemistry) , second harmonic generation , denticity , platinum , dipole , nonlinear optical , nonlinear optics , crystallography , photochemistry , nonlinear system , polarizability , physics , optics , organic chemistry , molecule , laser , biochemistry , receptor , quantum mechanics , crystal structure , catalysis
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 [Pt L X] 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.