Synthesis, structure, electrochemistry, and photophysics of methyl-substituted phenylpyridine ortho-metalated iridium(III) complexes

Garces, F. O.; King, K. A.; Watts, Richard J.

doi:10.1021/ic00293a008

Cited by 300 publications

(238 citation statements)

References 7 publications

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“…[52][53][54] Technical-grade solvents were purchased from VWR/Prolabo and redistilled under reduced pressure at 40°C. Spectroscopic-grade methanol, dichloromethane, chloroform, and acetonitrile for spectroscopic measurements were purchased from Roth.…”

Section: Methodsmentioning

confidence: 99%

Protonation‐Dependent Luminescence of an Iridium(III) Bibenzimidazole Chromophore

et al. 2015

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We present the synthesis and a detailed structural and photophysical investigation of the bis(phenylpyridine)iridium(III) complex of 4,4Ј,5,5Ј-tetramethyl-2,2Ј-bibenzimidazole [Ir(tmBBI)-H 2 ] and its homodinuclear complex [Ir(tmBBI)Ir]. Their structures were determined by single-crystal X-ray diffraction analysis and NMR spectroscopy, and detailed UV/ Vis and emission spectroscopy studies were performed. Ir(tmBBI)-H x shows strong protonation-state-dependent lu-

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Section: Methodsmentioning

confidence: 99%

Protonation‐Dependent Luminescence of an Iridium(III) Bibenzimidazole Chromophore

et al. 2015

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“…Ir-SAc has an emission maximum at 582 nm, whereas for the reference compound, the emission maximum is at 579 nm. The emission at RT of both complexes is attributed to the decay of the 3 MLCT [54][55][56][57], and hence the emission profile has a broad and structureless feature at RT. Also, as already mentioned, the ligand involved in the charge transfer is the substituted phenanthroline and therefore both complexes have very similar emission maxima, since the extent of exciton diffusion on this ligand is very similar.…”

Section: Photophysical Characterization In Solutionmentioning

confidence: 99%

Luminescent acetylthiol derivative tripodal osmium(II) and iridium(III) complexes: Spectroscopy in solution and on surfaces

Ramachandra

Polo

Edafe

et al. 2011

Pure and Applied Chemistry

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Luminescent Os(II) and Ir(III) complexes containing a tripodal-type structure terminalized with three thiol derivatives are described. The tripod is introduced through derivatization, with a rigid spacer, of a phenanthroline ligand coordinated to the metal ion, and the entire structure possesses axial geometry. The geometry of the complexes combined with the three anchoring sites, the thiol groups, allows the complexes to adopt an almost perpendicular arrangement to the surfaces and the formation of a well-packed monolayer on Au substrates. The photophysical and electrochemical behavior of the complexes is studied in solution and on surfaces. Furthermore, a self-assembled monolayer (SAM) of Os(II) complexes on an ultraflat Au surface is used to fabricate a metal–molecule–metal junction with Au and In Ga eutectic as electrodes. The Os(II) SAM in the tunneling junction exhibits rectification behavior which is opposite in direction to that which we have previously shown for Ru(II) SAMs.

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“…Synthetic procedures for preparation of (I) and (II) have been described in prior publications (Sprouse, King, Spellane & Watts, 1984;King, Spellane & Watts, 1985;Garces, King & Watts, 1988;Dedeian, Djurovich, Garces, Carlson & Watts, 1991). Complex (I): crystals were obtained by vapor exchange of a dichloromethane solution with toluene/hexane (2:1).…”

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confidence: 99%

Structures of ortho-metalated [2-(p-tolyl)pyridine]iridium(III) complexes

Garces¹,

Dedeian²,

Keder³

et al. 1993

Acta Crystallogr C

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Abstract.Di-/x-chloro-tetrakis [2-(p-tolyl-rC2) Or-bonded ortho-metalated complexes, the dichlorobridged dimer, [Ir(ptpy)2C1]2 (I), and the facial-tris mononuclear complex, Ir(ptpy)3 (II), where ptpy is the deprotonated 2-(p-tolyl)pyridine, C iEHio N. Complex (I) has crystallographic twofold symmetry (CI atoms on the twofold axis) and (II) has crystallographic threefold symmetry (Ir atom on the threefold axis). These molecules have been synthesized and studied for their utilization in outer-sphere electrontransfer processes.

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Synthesis, structure, electrochemistry, and photophysics of methyl-substituted phenylpyridine ortho-metalated iridium(III) complexes

Cited by 300 publications

References 7 publications

Protonation‐Dependent Luminescence of an Iridium(III) Bibenzimidazole Chromophore

Protonation‐Dependent Luminescence of an Iridium(III) Bibenzimidazole Chromophore

Luminescent acetylthiol derivative tripodal osmium(II) and iridium(III) complexes: Spectroscopy in solution and on surfaces

Structures of ortho-metalated [2-(p-tolyl)pyridine]iridium(III) complexes

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