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Issue 40, 2007
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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

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Abstract

[Ir(ppy)2(5-R-1,10-phen)][PF6] (ppy = cyclometallated 2-phenylpyridine, phen = phenanthroline, R = H, Me, NMe2, NO2) and [Ir(ppy)2(4-R′,7-R′-1,10-phen)][PF6] (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 π* 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.

Graphical abstract: 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

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Publication details

The article was received on 30 May 2007, accepted on 06 Jul 2007 and first published on 02 Aug 2007


Article type: Communication
DOI: 10.1039/B708073E
Citation: Chem. Commun., 2007,0, 4116-4118
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    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

    C. Dragonetti, S. Righetto, D. Roberto, R. Ugo, A. Valore, S. Fantacci, A. Sgamellotti and F. De Angelis, Chem. Commun., 2007, 0, 4116
    DOI: 10.1039/B708073E

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