The luminescence properties of multinuclear platinum complexes.
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TL;DR: In this article, the authors provide an overview of some of the key features of multinuclear Pt(II) complexes and their luminescence, and subdivide the examples into three classes, according to whether or not there are significant intramolecular interfacial interactions between the square-planar units.
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About: This article is published in Coordination Chemistry Reviews. The article was published on 15 Jul 2018. and is currently open access.
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Figures
![Figure 43 Microscopic fluorescence images of 77 (a–c) and 76 (d–f). (a, d) Microscale single crystals, (b, e) crushed microcrystals, and (c, f) samples smeared on a glass slide. Reproduced from [93] by permission of Elsevier.](/figures/figure-43-microscopic-fluorescence-images-of-77-a-c-and-76-d-7vznyys2.png)
Figure 43 Microscopic fluorescence images of 77 (a–c) and 76 (d–f). (a, d) Microscale single crystals, (b, e) crushed microcrystals, and (c, f) samples smeared on a glass slide. Reproduced from [93] by permission of Elsevier. 
Figure 26 Left: Absorption spectrum of 58 and the emission and excitation spectra of 58 (solid lines) and 57 (dashed lines) in CH2Cl2 at room temperature. Right: Absorption and emission spectra of the heterometallic Au-Pt complex 59 (solid lines) together with the ![Figure 25 Dinuclear Pt(N^N^C) complex 58 with a bridging xanthene ligand and the structurally similar heterometallic Au-Pt complex 59, together with the mononuclear model complex 57 [77].](/figures/figure-25-dinuclear-pt-n-n-c-complex-58-with-a-bridging-186tcnhf.png)
Figure 25 Dinuclear Pt(N^N^C) complex 58 with a bridging xanthene ligand and the structurally similar heterometallic Au-Pt complex 59, together with the mononuclear model complex 57 [77]. ![Figure 60 (a) UV-vis absorption spectral traces of 93 in DMSO ([Pt]=843 μM) on increasing temperature. (b) UV-vis absorption spectral changes of 93 in DMSO as the concentration is increased from 69 to 1,005 μM. (Inset) A plot of the apparent absorbance of 93 at 525 nm as a function of concentration. (c) UV-vis absorption spectral changes of 91 in DMSO as the concentration is increased from 17 to 1,442μM. (d) A plot of the apparent absorbance of 27 at 550 nm as a function of concentration. Reproduced from [102] by permission of Proceedings of the National Academy of Sciences of the United States of America.](/figures/figure-60-a-uv-vis-absorption-spectral-traces-of-93-in-dmso-gz96onpb.png)
Figure 60 (a) UV-vis absorption spectral traces of 93 in DMSO ([Pt]=843 μM) on increasing temperature. (b) UV-vis absorption spectral changes of 93 in DMSO as the concentration is increased from 69 to 1,005 μM. (Inset) A plot of the apparent absorbance of 93 at 525 nm as a function of concentration. (c) UV-vis absorption spectral changes of 91 in DMSO as the concentration is increased from 17 to 1,442μM. (d) A plot of the apparent absorbance of 27 at 550 nm as a function of concentration. Reproduced from [102] by permission of Proceedings of the National Academy of Sciences of the United States of America. ![Figure 66 Luminescence spectra (λex = 365 nm) of 98α, 98β, 99·12.5H2O, 100·4H2O, and 101·H2O at room temperature. Reproduced from [105] by permission of The Royal Society of Chemistry.](/figures/figure-66-luminescence-spectra-lex-365-nm-of-98a-98b-99-12-3qcsq33l.png)
Figure 66 Luminescence spectra (λex = 365 nm) of 98α, 98β, 99·12.5H2O, 100·4H2O, and 101·H2O at room temperature. Reproduced from [105] by permission of The Royal Society of Chemistry. 
Figure 55 Structure of dinuclear Pt complexes 88-90 with modified mPE bridges.
![Figure 43 Microscopic fluorescence images of 77 (a–c) and 76 (d–f). (a, d) Microscale single crystals, (b, e) crushed microcrystals, and (c, f) samples smeared on a glass slide. Reproduced from [93] by permission of Elsevier.](/figures/figure-43-microscopic-fluorescence-images-of-77-a-c-and-76-d-7vznyys2.webp)
![Figure 25 Dinuclear Pt(N^N^C) complex 58 with a bridging xanthene ligand and the structurally similar heterometallic Au-Pt complex 59, together with the mononuclear model complex 57 [77].](/figures/figure-25-dinuclear-pt-n-n-c-complex-58-with-a-bridging-186tcnhf.webp)
![Figure 60 (a) UV-vis absorption spectral traces of 93 in DMSO ([Pt]=843 μM) on increasing temperature. (b) UV-vis absorption spectral changes of 93 in DMSO as the concentration is increased from 69 to 1,005 μM. (Inset) A plot of the apparent absorbance of 93 at 525 nm as a function of concentration. (c) UV-vis absorption spectral changes of 91 in DMSO as the concentration is increased from 17 to 1,442μM. (d) A plot of the apparent absorbance of 27 at 550 nm as a function of concentration. Reproduced from [102] by permission of Proceedings of the National Academy of Sciences of the United States of America.](/figures/figure-60-a-uv-vis-absorption-spectral-traces-of-93-in-dmso-gz96onpb.webp)
![Figure 66 Luminescence spectra (λex = 365 nm) of 98α, 98β, 99·12.5H2O, 100·4H2O, and 101·H2O at room temperature. Reproduced from [105] by permission of The Royal Society of Chemistry.](/figures/figure-66-luminescence-spectra-lex-365-nm-of-98a-98b-99-12-3qcsq33l.webp)
Citations
Metallodrugs are unique: opportunities and challenges of discovery and development
Elizabeth J Anthony,Elizabeth M. Bolitho,Hannah E. Bridgewater,Oliver W. L. Carter,Jane M. Donnelly,Cinzia Imberti,Edward C Lant,Frederik Lermyte,Frederik Lermyte,Russell J. Needham,Marta Palau,Peter J. Sadler,Huayun Shi,Fang-Xin Wang,Wen-Ying Zhang,Zijin Zhang +15 more
TL;DR: In this paper, the authors focus on early-stage in vitro drug discovery, highlighting the challenges of evaluating anticancer, antimicrobial and antiviral metallo-pharmacophores in cultured cells, and identifying their targets.
Modulation of Metallophilic and π-π Interactions in Platinum Cyclometalated Luminophores with Halogen Bonding.
Vasily Sivchik,Aleksandr Kochetov,Toni Eskelinen,Kristina S. Kisel,Anastasia I. Solomatina,Elena V. Grachova,Sergey P. Tunik,Pipsa Hirva,Igor O. Koshevoy +8 more
TL;DR: The chromophore units into XB adducts 1 - 3 … IC 6 F 5 has a little effect on the charge distribution, but strongly effects Pt bonding and π-stacking, which lead to excited states of MMLCT (metal-metal-to-ligand charge transfer) origin.
152
Luminescent Complexes of Platinum, Iridium, and Coinage Metals Containing N-Heterocyclic Carbene Ligands: Design, Structural Diversity, and Photophysical Properties.
TL;DR: In this article , a review of N-heterocyclic carbenes-based luminescent platinum and iridium complexes with large spin-orbit-coupling (SOC) is presented.
101
Dinuclear Design of a Pt(II) Complex Affording Highly Efficient Red Emission: Photophysical Properties and Application in Solution-Processible OLEDs
Marsel Z. Shafikov,Marsel Z. Shafikov,Marsel Z. Shafikov,Ruth Daniels,Piotr Pander,Fernando B. Dias,J. A. Gareth Williams,Valery N. Kozhevnikov +7 more
TL;DR: The design of a molecular emitter that incorporates two platinum(II) centers is described, highlighting a potentially attractive way to develop highly efficient red and NIR-emitting devices through the use of multinuclear complexes.
Highly Phosphorescent Planar Chirality by Bridging Two Square-Planar Platinum(II) Complexes: Chirality Induction and Circularly Polarized Luminescence
TL;DR: In this paper , a planar chirality was achieved by constructing 3D double-layer molecular structures using a chiral ligand 1,3,4-oxadiazole-2-thiol (OXT).
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