Cyclometallated iridium(iii) complexes with substituted 1,10-phenanthrolines: a new class of highly active organometallic second order NLO-phores with excellent transparency with respect to second harmonic emission
Chemical Communications2007Iss. 40, pp. 4116–4116
Citations Over TimeTop 10% of 2007 papers
Claudia Dragonetti, Stefania Righetto, Dominique Roberto, Renato Ugo, Adriana Valore, Simona Fantacci, Antonio Sgamellotti, Filippo De Angelis
Abstract
[Ir(ppy)(2)(5-R-1,10-phen)][PF(6)] (ppy = cyclometallated 2-phenylpyridine, phen = phenanthroline, R = H, Me, NMe(2), NO(2)) and [Ir(ppy)(2)(4-R',7-R'-1,10-phen)][PF(6)] (R' = Me, Ph) complexes are characterized by one of the highest second order NLO response (measured by the EFISH technique) reported for a metal complex, mainly due (as suggested by a theoretical SOS-TDDFT investigation) to MLCT processes from the ppy-Ir based moiety acting as donor push system to pi* orbitals of phen, acting as an acceptor pull system; the good transparency to the second harmonic emission renders these NLO-phores appealing as building blocks for molecular materials with second harmonic generation.
Related Papers
- → Color tunable phosphorescent light-emitting diodes based on iridium complexes with substituted 2-phenylbenzothiozoles as the cyclometalated ligands(2004)80 cited
- → Color tuning of organic light-emitting diodes by adjusting the ligands of heteroleptic iridium(III) complexes(2011)5 cited
- → Interaction of Dinitrogentrioxide with Ir(I) Complexes(1981)2 cited