192863-71-1Relevant academic research and scientific papers
Synthesis, structure, and photophysical and electrochemical properties of cyclometallated iridium(III) complexes with phenylated bipyridine ligands
Lepeltier, Marc,Lee, Terence Kwok-Ming,Lo, Kenneth Kam-Wing,Toupet, Loic,Le Bozec, Hubert,Guerchais, Veronique
, p. 110 - 117 (2005)
A series of cationic diiminoiridium(III) complexes [Ir(ppy-N,C) 2(L-N,N)](PF6) has been prepared [Hppy = 2-phenylpyridine; L = 4,4′-tBu2dpbpy (1), 4,4′-Me2dpbpy (2), 4,4′-Me2pbpy (3), 4,4′-Me2bpy (4)] and their photophysical and electrochemical properties studied. X-ray diffraction studies of complex 1 reveal a dihedral angle of about 33° between the pyridine rings, and that the two phenyl groups are also tilted with respect to the adjacent pyridine rings. All the complexes exhibit moderately intense and long-lived emission. The origin of the emission is tentatively assigned to a triplet metal-to-ligand charge-transfer 3MLCT [dπ(Ir) → π* (diimine)] excited state, although the possibility of a triplet σ-bond-to-ligand charge transfer 3SBLCT [σ(Ir-C) → π* (diimine)] cannot be excluded. The luminescence properties of the complexes are dependent on the substituents on the diimine ligands. Selective N-methylation of the diimine ligands has been achieved and their N,C-coordination to the Ir centre has been attempted. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.
The synthesis of tetrahedral bipyridyl metallo-octupoles with large second- and third-order nonlinear optical properties
Akdas-Kilig, Huriye,Malval, Jean-Pierre,Morlet-Savary, Fabrice,Singh, Anu,Toupet, Loic,Ledoux-Rak, Isabelle,Zyss, Joseph,Le Bozec, Hubert
scheme or table, p. 681 - 688 (2012/02/06)
Two new 4,4′-bis(donor)-6,6′-diphenyl- 2,2′-bipyridine ligands and their corresponding D2d (CuI, AgI, ZnII) octupolar metal complexes were synthesized, and their linear and nonlinear optical properties were inve
Design, synthesis and structural analysis of exoditopic macrocyclic ligands based on bipyridine units
Kaes, Christian,Hosseini, Mir Wais,De Cian, Andre,Fischer, Jean
, p. 4389 - 4392 (2007/10/03)
The synthesis of new unsymmetrical and symmetrical macrocycles based on 2,2'-bipyridine units bearing two or four phenyl groups at the 6 and 6' positions was achieved by an oxidative coupling reaction using 1,2-dibromoethane and organolithium derivatives of bipyridine. Among all new compounds prepared, two of them were structurally analysed in the solid state by X-ray diffraction.
