2015
DOI: 10.1002/anie.201408940
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Luminescent Pincer Platinum(II) Complexes with Emission Quantum Yields up to Almost Unity: Photophysics, Photoreductive CC Bond Formation, and Materials Applications

Abstract: Luminescent pincer-type Pt(II)  complexes supported by C-deprotonated π-extended tridentate RC^N^NR' ligands and pentafluorophenylacetylide ligands show emission quantum yields up to almost unity. Femtosecond time-resolved fluorescence measurements and time-dependent DFT calculations together reveal the dependence of excited-state structural distortions of [Pt(RC^N^NR')(CC-C6 F5 )] on the positional isomers of the tridentate ligand. Pt complexes [Pt(R-C^N^NR')(CC-Ar)] are efficient photocatalysts for vi… Show more

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Cited by 150 publications
(84 citation statements)
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“…10) [53]. Depending on the ancillary ligand, these complexes showed emission arising from several contributions, being 3 MLCT and 3 ILCT, together with 3 XLCT or 3 LLCT, where XLCT is a halogen-to-ligand charge transfer, with PLQY values approaching unity for some derivatives.…”
Section: Reviewmentioning
confidence: 99%
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“…10) [53]. Depending on the ancillary ligand, these complexes showed emission arising from several contributions, being 3 MLCT and 3 ILCT, together with 3 XLCT or 3 LLCT, where XLCT is a halogen-to-ligand charge transfer, with PLQY values approaching unity for some derivatives.…”
Section: Reviewmentioning
confidence: 99%
“…Chemical structure of platinum(II) complexes 22a–d bearing asymmetric C^N^N tridentate ligands [53]. …”
Section: Reviewmentioning
confidence: 99%
“…These metallomesogens also show a high stability ands uccessive grinding/fuming cycles can be performedw ithoutd egradation of the sample. [5] Particularly,the study of species in which the platinum centre is coordinated to delocalised p-systems is arousing speciali nterest becauset he phosphorescent nature of the emission is boosted at room temperature. [1] Therefore, the self-assembly of molecules will determinet he energy levelso ft he HOMOa nd LUMO orbitals, this fact openingawide range of possibilities in relationw ith the photophysical behaviour of this kind of nanomaterials.…”
mentioning
confidence: 99%
“…[2] It is well known that the luminescence emission in such systems can be originated from ag reat variety of excited states, such as ligand centre charge transfer (LCT), intraligand charge transfer (ILCT), metal-to-ligand charge transfer (MLCT), and metalmetal-to-ligand charget ransfer (MMLCT). [5] Particularly,the study of species in which the platinum centre is coordinated to delocalised p-systems is arousing speciali nterest becauset he phosphorescent nature of the emission is boosted at room temperature. As mall modification in the molecular structure can induce the formation of new intermolecular interactions, and this can originaten otable changes in its properties ande ven give rise to stimuli-responsive behaviours.…”
mentioning
confidence: 99%
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