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Lee LCC, Lo KKW. Shining New Light on Biological Systems: Luminescent Transition Metal Complexes for Bioimaging and Biosensing Applications. Chem Rev 2024; 124:8825-9014. [PMID: 39052606 PMCID: PMC11328004 DOI: 10.1021/acs.chemrev.3c00629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Luminescence imaging is a powerful and versatile technique for investigating cell physiology and pathology in living systems, making significant contributions to life science research and clinical diagnosis. In recent years, luminescent transition metal complexes have gained significant attention for diagnostic and therapeutic applications due to their unique photophysical and photochemical properties. In this Review, we provide a comprehensive overview of the recent development of luminescent transition metal complexes for bioimaging and biosensing applications, with a focus on transition metal centers with a d6, d8, and d10 electronic configuration. We elucidate the structure-property relationships of luminescent transition metal complexes, exploring how their structural characteristics can be manipulated to control their biological behavior such as cellular uptake, localization, biocompatibility, pharmacokinetics, and biodistribution. Furthermore, we introduce the various design strategies that leverage the interesting photophysical properties of luminescent transition metal complexes for a wide variety of biological applications, including autofluorescence-free imaging, multimodal imaging, organelle imaging, biological sensing, microenvironment monitoring, bioorthogonal labeling, bacterial imaging, and cell viability assessment. Finally, we provide insights into the challenges and perspectives of luminescent transition metal complexes for bioimaging and biosensing applications, as well as their use in disease diagnosis and treatment evaluation.
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Affiliation(s)
- Lawrence Cho-Cheung Lee
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F, Building 17W, Hong Kong Science Park, New Territories, Hong Kong, P. R. China
| | - Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
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2
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Esteruelas MA, Moreno-Blázquez S, Oliván M, Oñate E. N,C,N-Pincers in Platinum Bimetallic Complexes: Influence of the Pincer and Bridging Ligands on the Metal-Metal Bond and the Photophysical Properties. Inorg Chem 2024; 63:14482-14494. [PMID: 39028899 DOI: 10.1021/acs.inorgchem.4c01712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Precursors PtCl{κ3-N,C,N-[py-C6HMe2-py]} (1), PtCl{κ3-N,C,N-[py-O-C6H3-O-py]} (2), Pt(OH){κ3-N,C,N-[py-C6HMe2-py]} (3), and Pt(OH){κ3-N,C,N-[py-O-C6H3-O-py]} (4) were used to prepare d8-platinum bimetallic complexes. Precursors 1 and 2 react with AgBF4 and 7-azaindole (Haz) to give [Pt{κ3-N,C,N-[py-C6HMe2-py]}{κ1-N-[Haz]}]BF4 (5) and [Pt{κ3-N,C,N-[py-O-C6H3-O-py]}{κ1-N-[Haz]}]BF4 (6) and 3 and 4 with indolo[2,3-b]indole (H2ii) to generate Pt{κ1-N-[Hii]}{κ3-N,C,N-[py-C6HMe2-py]} (7) and Pt{κ1-N-[Hii]}{κ3-N,C,N-[py-O-C6H3-O-py]} (8). Subsequent addition of 3 and 4 to 5-7 affords bimetallic derivatives [{Pt[κ3-N,C,N-(py-C6HMe2-py)]}2{μ-N,N-[az]}]BF4 (9), [{Pt[κ3-N,C,N-(py-O-C6H3-O-py)]}2{μ-N,N-[az]}]BF4 (10), and {Pt[κ3-N,C,N-(py-C6HMe2-py)]}2{μ-N,N-[ii]} (11). X-ray structures of 9-11 reveal separations between the metals in sequence 9 (3.0515(4) Å) < 10 (3.2689(9) Å) < 11 (3.2949(2) Å). DFT calculations support σ overlap of the dz2 orbitals of platinum atoms, for 9 and 10. Accordingly, their absorption spectra show a MMLCT transition. Complex 9 is a red emitter. The excited state has 3MMLCT characteristics and a Pt-Pt separation of 2.763 Å. Complex 11 is a dual emitter in the red and NIR regions, in solid. Both excited states have a 3LC/LMCT characteristic and platinum-platinum separations of 3.290 and 3.202 Å. Intermediate 5 is a green emitter that achieves quantum yields close to unity, when diluted in PMMA and 1,2-dichloroethane at low concentrations.
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Affiliation(s)
- Miguel A Esteruelas
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Sonia Moreno-Blázquez
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
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3
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Benda L, Miton L, Hadj Seyd N, Chamoreau LM, Jonusauskas G, McClenaghan ND, Hasenknopf B, Marvaud V, Vives G. Cyclometalated luminescent platinum(II) complexes of dissymmetrical 2,2':4',2''-terpyridine and its self-assembled dimer presenting Pt-Ag dative bonds. Dalton Trans 2024; 53:12477-12485. [PMID: 38894665 DOI: 10.1039/d4dt01153h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
A series of cyclometalated (N^C^N) Pt(II)-platinum complexes featuring a terpyridine ligand with a non-coordinating nitrogen atom and a Pt-C bond was synthesized. In the presence of Ag+, the bis(isonitrile)Pt(II) complex formed a remarkable self-assembled helicoidal dimer stabilized by coordination of Ag(I) and metallophilic Pt-Ag interactions. Its assembly was observed in the solid state and maintained in solution. All complexes show strong luminescence and multiple emitting states, which could be rationalized based on solid state X-ray structures and coordinating environment.
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Affiliation(s)
- Lorien Benda
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | - Louise Miton
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | - Nihal Hadj Seyd
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | - Lise-Marie Chamoreau
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | | | | | - Bernold Hasenknopf
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | - Valérie Marvaud
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
| | - Guillaume Vives
- Sorbonne Université, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005, Paris, France.
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4
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Hattori S, Ogishima M, Nakajima T, Hosoya S, Kitagawa Y, Hasegawa Y, Nonose S, Sato T, Shinozaki K. Photodynamic Effect of Amphiphilic N ∧C ∧N-Coordinated Platinum(II) Complexes in Human Umbilical Vein Endothelial Cells. Inorg Chem 2024; 63:13972-13979. [PMID: 38996005 DOI: 10.1021/acs.inorgchem.4c01414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
Here, we report a photodynamic therapy (PDT) photosensitizer of N∧C∧N-coordinated Pt(II) complexes: [Pt(L)(solv)]+ (HL = 1,3-(2-dipyridyl)benzene) and [Pt(L)]+@HSA, which is the Pt(II) complex encapsulated in human serum albumin (HSA). The quantum yield of singlet oxygen production for [Pt(L)(solv)]+ is more than 50%, while that for [Pt(L)]+@HSA is much lower. Photoimages of human umbilical vein endothelial cells (HUVECs) treated with the Pt(II) complexes suggest that [Pt(L)(solv)]+ is delocalized in the entire cell after the fast uptake by diffusion and [Pt(L)]+@HSA is taken up by endocytosis and localized on organelles and the cell membrane. [Pt(L)(solv)]+ shows high photocytotoxicity for HUVECs, while [Pt(L)]+@HSA does not show photocytotoxicity.
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Affiliation(s)
- Shingo Hattori
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Mizuki Ogishima
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Tadaaki Nakajima
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Shota Hosoya
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Yuichi Kitagawa
- Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - Shinji Nonose
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Tomomi Sato
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kazuteru Shinozaki
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
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5
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Zhan F, Lin GL, Zhang TS, Xu K, Yang YF, Li G, She Y. Pt-S Bond-Enabled Temperature-Dependent Phosphorescence in S-Heteroaryl Tetradentate Pt(S^C^N^O) Complexes. Inorg Chem 2024; 63:8822-8831. [PMID: 38696545 DOI: 10.1021/acs.inorgchem.4c00601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
This study presents the rare examples of S-heteroaryl tetradentate Pt(S^C^N^O) luminescent complexes (PtSZ and PtSZtBu) containing a Pt-S bond. The presence of the Pt-S bond allows the novel Pt(S^C^N^O) complexes to exhibit temperature-dependent phosphorescent emission behavior. The PtSZtBu exhibits dual-emission phenomena and biexponential transient decay spectra above 250 K, indicating the presence of two minimal excited states in the potential energy surface (PES) of the T1 state. Through complementary experimental and computational studies, we have identified changes in orbital composition between Pt(dxy)-S(px) and Pt(dyz)-S(pz) in excited states with increasing temperature. This results in two energy minima, enabling the excited states to decay selectively and radiatively at different temperatures. Consequently, this leads to remarkable steady-state and transient emission spectra changes. Our work not only provides valuable insights for the development of novel Pt-S bond-based tetradentate Pt(II) complexes but also enhances our understanding of the distinctive properties governed by the Pt-S bond.
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Affiliation(s)
- Feng Zhan
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Guo-Liang Lin
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Teng-Shuo Zhang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Kewei Xu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Yun-Fang Yang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Guijie Li
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
| | - Yuanbin She
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, PR China
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6
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Bryant MJ, Fuertes S, Hatcher LE, Thomas LH, Raithby PR. Structural modifications to platinum(II) pincer complexes resulting in changes in their vapochromic and solvatochromic properties. Faraday Discuss 2023; 244:411-433. [PMID: 37186115 DOI: 10.1039/d3fd00025g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
There is a need to develop rapidly responsive chemical sensors for the detection of low concentrations of volatile organic solvents (VOCs). Platinum pincer complexes have shown promise as sensors because of their colours and vapochromic and solvatochromic properties, that may be related to the non-covalent interactions between the pincer complexes and the guest VOCs. Here we report an investigation into a series of Pt(II) complexes based on the 1,3-di(pyridine)benzene tridentate (N⁁C⁁N) skeleton with the formula [Pt(N⁁C(R)⁁N)(CN)] (R = C(O)Me 2, C(O)OEt 3, C(O)OPh 4) with the fourth coordination site occupied by a cyanide ligand. Solid-state samples of the complexes have been tested with a range of volatiles including methanol, ethanol, acetone, dichloromethane and water, and while 2 displays thermochromism, 3 and 4 display rapidly reversible vapochromism and solvatochromism. These results are correlated with X-ray powder and single crystal X-ray structural data including an assessment of the crystal packing and the void space in the crystalline space. The cyanide ligand and the R substituents are involved in hydrogen bonding that creates the voids within the structures and interact with the solvent molecules that influence the Pt⋯Pt separation in the crystalline state.
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Affiliation(s)
- Mathew J Bryant
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK.
| | - Sara Fuertes
- Departamento de Quimica Inorgánica, Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Lauren E Hatcher
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK.
| | - Lynne H Thomas
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK.
| | - Paul R Raithby
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK.
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7
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Esteruelas MA, Moreno-Blázquez S, Oliván M, Oñate E. Competition between N, C, N-Pincer and N, N-Chelate Ligands in Platinum(II). Inorg Chem 2023; 62:10152-10170. [PMID: 37343120 PMCID: PMC11003652 DOI: 10.1021/acs.inorgchem.3c00694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Indexed: 06/23/2023]
Abstract
Replacement of the chloride ligand of PtCl{κ3-N,C,N-[py-C6HR2-py]} (R = H (1), Me (2)) and PtCl{κ3-N,C,N-[py-O-C6H3-O-py]} (3) by hydroxido gives Pt(OH){κ3-N,C,N-[py-C6HR2-py]} (R = H (4), Me (5)) and Pt(OH){κ3-N,C,N-[py-O-C6H3-O-py]} (6). These compounds promote deprotonation of 3-(2-pyridyl)pyrazole, 3-(2-pyridyl)-5-methylpyrazole, 3-(2-pyridyl)-5-trifluoromethylpyrazole, and 2-(2-pyridyl)-3,5-bis(trifluoromethyl)pyrrole. The coordination of the anions generates square-planar derivatives, which in solution exist as a unique species or equilibria between isomers. Reactions of 4 and 5 with 3-(2-pyridyl)pyrazole and 3-(2-pyridyl)-5-methylpyrazole provide Pt{κ3-N,C,N-[py-C6HR2-py]}{κ1-N1-[R'pz-py]} (R = H; R' = H (7), Me (8). R = Me; R' = H (9), Me (10)), displaying κ1-N1-pyridylpyrazolate coordination. A 5-trifluoromethyl substituent causes N1-to-N2 slide. Thus, 3-(2-pyridyl)-5-trifluoromethylpyrazole affords equilibria between Pt{κ3-N,C,N-[py-C6HR2-py]}{κ1-N1-[CF3pz-py]} (R = H (11a), Me (12a)) and Pt{κ3-N,C,N-[py-C6HR2-py]}{κ1-N2-[CF3pz-py]} (R = H (11b), Me (12b)). 1,3-Bis(2-pyridyloxy)phenyl allows the chelating coordination of the incoming anions. Deprotonations of 3-(2-pyridyl)pyrazole and its substituted 5-methyl counterpart promoted by 6 lead to equilibria between Pt{κ3-N,C,N-[pyO-C6H3-Opy]}{κ1-N1-[R'pz-py]} (R' = H (13a), Me (14a)) with a κ-N1-pyridylpyrazolate anion, keeping the pincer coordination of the di(pyridyloxy)aryl ligand, and Pt{κ2-N,C-[pyO-C6H3(Opy)]}{κ2-N,N-[R'pz-py]} (R' = H (13c), Me (14c)) with two chelates. Under the same conditions, 3-(2-pyridyl)-5-trifluoromethylpyrazole generates the three possible isomers: Pt{κ3-N,C,N-[pyO-C6H3-Opy]}{κ1-N1-[CF3pz-py]} (15a), Pt{κ3-N,C,N-[pyO-C6H3-Opy]}{κ1-N2-[CF3pz-py]} (15b), and Pt{κ2-N,C-[pyO-C6H3(Opy)]}{κ2-N,N-[CF3pz-py]} (15c). The N1-pyrazolate atom produces a remote stabilizing effect on the chelating form, pyridylpyrazolates being better chelate ligands than pyridylpyrrolates. Accordingly, reactions of 4-6 with 2-(2-pyridyl)-3,5-bis(trifluoromethyl)pyrrole yield Pt{κ3-N,C,N-[py-C6HR2-py]}{κ1-N1-[(CF3)2C4(py)HN]} (R = H (16), Me (17)) or Pt{κ3-N,C,N-[pyO-C6H3-Opy]}{κ1-N1-[(CF3)2C4(py)HN]} (18), displaying κ1-N1-pyrrolate coordination. Complexes 7-10 are efficient green phosphorescent emitters (488-576 nm). In poly(methyl methacrylate) (PMMA) films and in dichloromethane, they experience self-quenching, due to molecular stacking. Aggregation occurs through aromatic π-π interactions, reinforced by weak platinum-platinum interactions.
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Affiliation(s)
- Miguel A. Esteruelas
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Sonia Moreno-Blázquez
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza—CSIC, 50009 Zaragoza, Spain
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8
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New members of a class of cyclometalated 1,3-di-(2-pyridyl)benzene platinum(II) complexes bearing a tetrazole-thiolate ancillary ligand. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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9
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Dikova YM, Yufit DS, Williams JAG. Platinum(IV) Complexes with Tridentate, NNC-Coordinating Ligands: Synthesis, Structures, and Luminescence. Inorg Chem 2023; 62:1306-1322. [PMID: 36644812 PMCID: PMC9890496 DOI: 10.1021/acs.inorgchem.2c04116] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Platinum(II) complexes of NNC-cyclometalating ligands based on 6-phenyl-2,2'-bipyridine (HL1) have been widely investigated for their luminescence properties. We describe how PtL1Cl and five analogues with differently substituted aryl rings, PtL2-6Cl, can be oxidized with chlorine and/or iodobenzene dichloride to generate Pt(IV) compounds of the form Pt(NNC-Ln)Cl3 (n = 1-6). The molecular structures of several of them have been determined by X-ray diffraction. These PtLnCl3 compounds react with 2-arylpyridines to give a new class of Pt(IV) complex of the form [Pt(NNC)(NC)Cl]+. Elevated temperatures are required, and the reaction is accompanied by competitive reduction processes and generation of side-products; however, four examples of such complexes have been isolated and their molecular structures determined. Reaction of PtL1Cl3 with HL1 similarly generates [Pt(NNC-L1)2]2+, which we believe to be the first example of a bis-tridentate Pt(IV) complex. The lowest-energy bands in the UV-vis absorption spectra of all the PtLnCl3 compounds are displaced to higher energy relative to the Pt(II) precursors, but they red-shift with the electron richness of the aryl ring, consistent with predominantly 1[πAr → π*NN] character to the pertinent excited state. A similar trend is observed for the [Pt(NNC)(NC)Cl]+ complexes. They display phosphorescence in solution at room temperature, centered around 500 nm for [PtL1(ppy)Cl]+ and [Pt(L1)2]2+, and 550 nm for methoxy-substituted derivatives. The lifetimes are in the microsecond range, rising to hundreds of microseconds at 77 K, consistent with triplet excited states of primarily 3[πAr → π*NN] character with relatively little participation of the metal.
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10
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Salthouse RJ, Pander P, Yufit DS, Dias FB, Williams JAG. Near-infrared electroluminescence beyond 940 nm in Pt(N^C^N)X complexes: influencing aggregation with the ancillary ligand X. Chem Sci 2022; 13:13600-13610. [PMID: 36507161 PMCID: PMC9682897 DOI: 10.1039/d2sc05023d] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/24/2022] [Indexed: 11/13/2022] Open
Abstract
We present a study of aggregate excited states formed by complexes of the type Pt(N^C^N)X, where N^C^N represents a tridentate cyclometallating ligand, and X = SCN or I. These materials display near-infrared (NIR) photoluminescence in film and electroluminescence in NIR OLEDs with λ max EL = 720-944 nm. We demonstrate that the use of X = SCN or I modulates aggregate formation compared to the parent complexes where X = Cl. While the identity of the monodentate ligand affects the energy of Pt-Pt excimers in solution in only a subtle way, it strongly influences aggregation in film. Detailed calculations on aggregates of different sizes support the experimental conclusions from steady-state and time-resolved luminescence studies at variable temperatures. The use of X = I appears to limit aggregation to the formation of dimers, while X = SCN promotes the formation of larger aggregates, such as tetramers and pentamers, leading in turn to NIR photo- and electroluminescence > 850 nm. A possible explanation for the contrasting influence of the monodentate ligands is the lesser steric hindrance associated with the SCN group compared to the bulkier I ligand. By exploiting the propensity of the SCN complexes to form extended aggregates, we have prepared an NIR-emitting OLED that shows very long wavelength electroluminescence, with λ max EL = 944 nm and a maximum EQE = 0.3 ± 0.1%. Such data appear to be unprecedented for a device relying on a Pt(ii) complex aggregate as the emitter.
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Affiliation(s)
| | - Piotr Pander
- Faculty of Chemistry, Silesian University of Technology M. Strzody 9 Gliwice 44-100 Poland
- Department of Physics, Durham University South Road Durham DH1 3LE UK
| | - Dmitry S Yufit
- Department of Chemistry, Durham University South Road Durham DH1 3LE UK
| | - Fernando B Dias
- Department of Physics, Durham University South Road Durham DH1 3LE UK
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11
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A Novel Class of Cyclometalated Platinum(II) Complexes for Solution-Processable OLEDs. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27165171. [PMID: 36014412 PMCID: PMC9412278 DOI: 10.3390/molecules27165171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022]
Abstract
Substitution of the chlorido ligand of cyclometalated [Pt (5-R-1,3-di(2-pyridyl) benzene)Cl] (R = methyl, mesityl, 2-thienyl, or 4-diphenylamino-phenyl) by 4-phenylthiazole-2-thiolate leads to related thiolato complexes, which were fully characterized. Their photophysical properties were determined in degassed dichloromethane solution. The emission color of the novel complexes can be easily tuned by the nature of the substituents on the terdentate ligand, as is the case for the parent chlorido complexes. Their luminescence Quantum Yield is high, with that of the compounds with the 2-thienyl or 4-diphenylamino-phenyl substituents being much higher than that of the related chloride complexes. The platinum complex with the cyclometalated 5-(2-thienyl)-1,3-di(2-pyridyl) benzene was used as the emitter for the fabrication of a yellow solution-processable OLED.
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12
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De Soricellis G, Fagnani F, Colombo A, Dragonetti C, Roberto D. Exploring the potential of N^C^N cyclometalated Pt(II) complexes bearing 1,3-di(2-pyridyl)benzene derivatives for imaging and photodynamic therapy. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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Fagnani F, Colombo A, Dragonetti C, Roberto D, Marinotto D. The intriguing effect of thiolates as co-ligands in platinum(II) complexes bearing a cyclometalated 1,3-di(2-pyridyl)benzene. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Synthesis, structures and luminescence properties of N^C^N-coordinated platinum(II) complexes based on an anthracene core: A red shift and a twist. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Venkatesan K, Jothi L. Structural growth dynamics of 2, 3-Diaminopyridinium 4-carboxy butanoate single crystalline linear and nonlinear optimization: Spectroscopic and optoelectronics applications. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Basuyaux G, Amar A, Troufflard C, Boucekkine A, Métivier R, Raynal M, Moussa J, Bouteiller L, Amouri H. Cyclometallated Pt(II) Complexes Containing a Functionalized Bis‐Urea Alkynyl Ligand: Probing Aggregation Mediated by Hydrogen Bonds
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Pt⋅⋅⋅Pt and π−π Interactions. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gaëtan Basuyaux
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Anissa Amar
- Laboratoire de Chimie et de Physique Quantiques Faculté des Sciences, U.M.M.T.O 15000 Tizi-Ouzou Algeria
| | - Claire Troufflard
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Abdou Boucekkine
- Univ. Rennes ISCR UMR 6226 CNRS Campus de Beaulieu 35042 Rennes Cedex France
| | - Rémi Métivier
- PPSM, ENS Paris-Saclay, CNRS Université Paris-Saclay 91190 Gif-sur-Yvette France
| | - Matthieu Raynal
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Jamal Moussa
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Laurent Bouteiller
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
| | - Hani Amouri
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire 4 place Jussieu 75005 Paris France
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Lee S, Lee Y, Kim K, Heo S, Jeong DY, Kim S, Cho J, Kim C, You Y. Twist to Boost: Circumventing Quantum Yield and Dissymmetry Factor Trade-Off in Circularly Polarized Luminescence. Inorg Chem 2021; 60:7738-7752. [PMID: 33760606 DOI: 10.1021/acs.inorgchem.1c00070] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Circularly polarized luminescence (CPL) enables promising applications in asymmetric photonics. However, the performances of CPL molecules do not yet meet the requirements of these applications. The shortcoming originates from the trade-off in CPL between the photoluminescence quantum yield (PLQY) and the photoluminescence dissymmetry factor (gPL). In this study, we developed a molecular strategy to circumvent this trade-off. Our approach takes advantage of the strong propensity of [Pt(N^C^N)Cl], where the N^C^N ligand is 1-(2-oxazoline)-3-(2-pyridyl)phenylate, to form face-to-face stacks. We introduced chiral substituents, including (S)-methyl, (R)- and (S)-isopropyl, and (S)-indanyl groups, into the ligand framework. This asymmetric control induces torsional displacements that give homohelical stacks of the Pt(II) complexes. X-ray single-crystal structure analyses for the (S)-isopropyl Pt(II) complex reveal the formation of a homohelical dimer with a Pt···Pt distance of 3.48 Å, which is less than the sum of the van der Waals radii of Pt. This helical stack elicits the metal-metal-to-ligand charge-transfer (MMLCT) transition that exhibits strong chiroptical activity due to the electric transition moment making an acute angle to the magnetic transition moment. The PLQY and gPL values of the MMLCT phosphorescence emission of the (S)-isopropyl Pt(II) complex are 0.49 and 8.4 × 10-4, which are improved by factors of ca. 6 and 4, respectively, relative to the values of the unimolecular emission (PLQY, 0.078; gPL, 2.4 × 10-4). Our photophysical measurements for the systematically controlled Pt(II) complexes reveal that the CPL amplifications depend on the chiral substituent. Our investigations also indicate that excimers are not responsible for the enhanced chiroptical activity. To demonstrate the effectiveness of our approach, organic electroluminescence devices were fabricated. The MMLCT emission devices were found to exhibit simultaneous enhancements in the external quantum efficiency (EQE, 9.7%) and the electroluminescence dissymmetry factor (gEL, 1.2 × 10-4) over the unimolecular emission devices (EQE, 5.8%; gEL, 0.3 × 10-4). These results demonstrate the usefulness of using the chiroptically active MMLCT emission for achieving an amplified CPL.
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Affiliation(s)
- Sumin Lee
- Division of Chemical Engineering and Materials Science, and Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Yongmoon Lee
- Graduate School of Convergence Science and Technology, and Inter-University Semiconductor Research Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyungmin Kim
- Department of Emerging Materials Science, DGIST, Daegu 42988, Republic of Korea
| | - Seunga Heo
- Division of Chemical Engineering and Materials Science, and Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Dong Yeun Jeong
- Division of Chemical Engineering and Materials Science, and Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Sangsub Kim
- Graduate School of Convergence Science and Technology, and Inter-University Semiconductor Research Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaeheung Cho
- Department of Emerging Materials Science, DGIST, Daegu 42988, Republic of Korea.,Department of Chemistry, UNIST, Ulsan 44919, Republic of Korea
| | - Changsoon Kim
- Graduate School of Convergence Science and Technology, and Inter-University Semiconductor Research Center, Seoul National University, Seoul 08826, Republic of Korea
| | - Youngmin You
- Division of Chemical Engineering and Materials Science, and Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea
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18
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Rastogi R, Krishna G, Tarannum N, Mishra S, Rastogi A, Butcher RJ. Study based on docking of antimicrobial activity and fluorescence behavior of ammonium salt of diisopropyl dithiophosphate, O, O′- diisopropanediyl S-( N-phthalimido methyl) and zinc diisopropyl dithiophosphates. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1860983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Rupali Rastogi
- Department of Chemistry, ITM University, Gwalior, Madhya Pradesh, India
| | - Gokul Krishna
- Department of Chemistry, ITM University, Gwalior, Madhya Pradesh, India
| | - Nazia Tarannum
- Department of Chemistry, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, India
| | - Swapnil Mishra
- Center of Bioinformatics, University of Allahabad, Allahabad, Uttar Pradesh, India
| | - Anugya Rastogi
- Department of Physics, Jiwaji University, Gwalior, Madhya Pradesh, India
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19
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Influence of the ancillary ligands on the luminescence of platinum(II) complexes with a triazole-based tridentate C^N^N luminophore. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.119988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Puttock EV, Sturala J, Kistemaker JCM, Williams JAG. Platinum(II) Complexes of Tridentate ‐Coordinating Ligands Based on Imides, Amides, and Hydrazides: Synthesis and Luminescence Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Emma V. Puttock
- Department of Chemistry Durham University DH1 3LE, U.K. Durham
| | - Jiri Sturala
- Department of Inorganic Chemistry University of Chemistry and Technology Prague Technicka 5 166 28 Prague 6 Czech Republic
| | - Jos C. M. Kistemaker
- Centre for Organic Photonics and Electronics The School of Chemistry and Molecular Biosciences University of Queensland 4072 Queensland Australia
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21
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Zheng Q, Borsley S, Tu T, Cockroft SL. Reversible stimuli-responsive chromism of a cyclometallated platinum(II) complex. Chem Commun (Camb) 2020; 56:14705-14708. [PMID: 33170199 DOI: 10.1039/d0cc06775j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report the reversible chromism and luminescence of a cyclometalated platinum(ii) complex that forms dimers, with close PtPt interactions that can be modulated by solvent and temperature. The precise reversible control may be exploited in future stimuli-responsive chemosensing or optoelectronic devices.
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Affiliation(s)
- Qingshu Zheng
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK. and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Stefan Borsley
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK.
| | - Tao Tu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Scott L Cockroft
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, UK.
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22
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23
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Yamamoto K, Higuchi K, Ogawa M, Sogawa H, Kuwata S, Hayashi Y, Kawauchi S, Takata T. Macrocyclic Metal Complexes Bearing Rigid Polyaromatic Ligands: Synthesis and Catalytic Activity. Chem Asian J 2020; 15:356-359. [PMID: 31823483 DOI: 10.1002/asia.201901561] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/09/2019] [Indexed: 11/10/2022]
Abstract
We synthesised palladium and platinum complexes possessing cyclic and acyclic pincer-type polyaromatic ligands and investigated their structural effect on the catalysis. The pincer-type bis(6-arylpyridin-2-yl)benzene skeleton was constructed via Kröhnke pyridine synthesis under transition metal-free conditions on gram-scale quantity. Ligand structure significantly influenced catalytic activity toward the platinum-catalysed hydrosilylation of diphenyl acetylenes, despite the ligand-independence of the conformations and electronic properties of these complexes.
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Affiliation(s)
- Koji Yamamoto
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan.,Present address: Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan
| | - Kazuki Higuchi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Masahiro Ogawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Hiromitsu Sogawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan.,Present address: Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Shigeki Kuwata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Yoshihiro Hayashi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Susumu Kawauchi
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
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24
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Phosphorescence properties of anionic cyclometalated platinum(II) complexes with fluorine-substituted tridentate diphenylpyridine in the solid state. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.137024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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25
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Sarkar A, Kumar R, Das B, Ray PS, Gupta P. A cyclometalated trinuclear Ir(iii)/Pt(ii) complex as a luminescent probe for histidine-rich proteins. Dalton Trans 2020; 49:1864-1872. [DOI: 10.1039/c9dt04720d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A trinuclear luminescent organometallic Pt–Ir–Pt complex acts as an efficient protein staining agent due to reversible binding to histidine-rich proteins.
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Affiliation(s)
- Ankita Sarkar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research-Kolkata
- Mohanpur
- India
| | - Ravi Kumar
- Department of Biological Sciences
- Indian Institute of Science Education and Research-Kolkata
- Mohanpur
- India
| | - Bishnu Das
- Department of Chemical Sciences
- Indian Institute of Science Education and Research-Kolkata
- Mohanpur
- India
| | - Partho Sarothi Ray
- Department of Biological Sciences
- Indian Institute of Science Education and Research-Kolkata
- Mohanpur
- India
| | - Parna Gupta
- Department of Chemical Sciences
- Indian Institute of Science Education and Research-Kolkata
- Mohanpur
- India
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26
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Colston KJ, Dille SA, Mogesa B, Astashkin AV, Brant JA, Zeller M, Basu P. Design, Synthesis, and Structure of Copper Dithione Complexes: Redox‐Dependent Charge Transfer. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901222] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kyle J. Colston
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
| | - Sara A. Dille
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
| | - Benjamin Mogesa
- Department of Chemistry and Biochemistry Duquesne University 15282 Pittsburgh PA USA
| | - Andrei V. Astashkin
- Department of Chemistry and Biochemistry University of Arizona 85721 Tucson AZ USA
| | - Jacilynn A. Brant
- The Air Force Research Laboratory Aerospace Systems Directorate 1950 Fifth Street, Building 18 45433 Wright‐Patterson Air Force Base Ohio USA
| | - Matthias Zeller
- Department of Chemistry Purdue University 560 Oval Drive 47907 West Lafayette IN USA
| | - Partha Basu
- Department of Chemistry and Chemical Biology Indiana University‐Purdue University Indianapolis 402 N. Blackford Street 46202 Indianapolis IN USA
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27
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Hashem SG, Elsaady MM, Afify HG, Omer WE, Youssef AO, El-Kemary M, Attia MS. Determination of uric acid in serum using an optical sensor based on binuclear Pd(II) 2-pyrazinecarboxamide-bipyridine doped in a sol gel matrix. Talanta 2019; 199:89-96. [PMID: 30952321 DOI: 10.1016/j.talanta.2019.02.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/10/2019] [Accepted: 02/12/2019] [Indexed: 01/23/2023]
Abstract
A new highly green luminescent binuclear palladium 2-pyrazinecarboxamide-bipyridine complex [Pd(pyc)(bpy)] was prepared and characterized. The binuclear Pd(pyc)(bpy) complex doped in sol-gel matrix has a strong luminescence intensity at 547 nm with λex = 330 nm in water The method depends on the quenching of the luminescence intensity of the binuclear Pd(pyc)(bpy) complex at 547 nm by different concentrations of uric acid. The remarkable quenching of the luminescence intensity of the binuclear Pd(pyc)(bpy) complex, doped in a sol-gel matrix, by uric acid was successfully used for the determination of uric acid in serum samples of patients with hypouricemia disease. The calibration plot was achieved over the concentration 3.9 × 10-9 to 1.2 × 10-4 mol L-1uric acid with a correlation coefficient of 0.9 and a detection limit of 1.8 × 10-10 mol L-1. The method was used satisfactorily for the assessment of the uric acid in a number of serum samples collected from various patients with Hypouricemia disease.
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Affiliation(s)
- S G Hashem
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - M M Elsaady
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - H G Afify
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - W E Omer
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Egypt
| | - A O Youssef
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt
| | - Maged El-Kemary
- Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Egypt
| | - M S Attia
- Ain Shams University, Department of chemistry, Faculty of Science, Abbassia, 11566 Cairo, Egypt.
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28
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Gao Y, Yip JHK. Selective Hypochlorous Acid Detection by Electronic Tuning of Platinum–4,5-bis(diphenylphosphino)acridine–Thiolate Complexes. Inorg Chem 2019; 58:9290-9302. [DOI: 10.1021/acs.inorgchem.9b01009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yifei Gao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - John H. K. Yip
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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29
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Shi H, Clarkson GJ, Sadler PJ. Dual action photosensitive platinum(II) anticancer prodrugs with photoreleasable azide ligands. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.02.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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Parker RR, Sarju JP, Whitwood AC, Williams JAG, Lynam JM, Bruce DW. Synthesis, Mesomorphism, and Photophysics of 2,5-Bis(dodecyloxyphenyl)pyridine Complexes of Platinum(IV). Chemistry 2018; 24:19010-19023. [PMID: 30211455 DOI: 10.1002/chem.201804026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 02/02/2023]
Abstract
It has been shown for the first time that the PtIV complex cis-[Pt(N^C-tolpy)2 Cl2 ] (tolpy=2-(4-tolyl)pyridinyl) can be prepared in a one-pot reaction from K2 [PtCl4 ], although analogous complexes containing 2,5-bis(4-dodecyloxyphenyl)pyridine (=HL) could be prepared using existing routes. The resulting complexes cis-[Pt(N^C-L)2 Cl2 ] are liquid crystals and small-angle X-ray scattering suggests formation of a lamellar mesophase. Surprisingly, heating [Pt(κ2 -N^C-L)2 Cl(κ1 -N^C-LH)] also leads to a mesomorphic compound, which results from thermally induced oxidation to cis-[Pt(N^C-L)2 Cl2 ] and what is presumed to be another geometric isomer of the same formula. The PtIV complexes are quite strongly luminescent in deoxygenated solution, with φ≈10 % and show vibrationally structured emission spectra, λmax (0,0)=532 nm, strongly displaced to the red compared to cis-[Pt(N^C-tolpy)Cl2 ]. Long luminescence lifetimes of 230 μs are attributed to a lower degree of metal character in the excited state accompanying the extension of conjugation in the ligand. There is no significant difference between the emission properties of the bromo- and chloro-complexes, in contrast with the known complexes cis-[Pt(N^C-ppy)X2 ], where the quantum yield for X=Br is some 30 times lower than for X=Cl (ppyH=2-phenylpyridine). The lower energy of the excited state in the new complexes probably ensures that deactivating LLCT/LMCT states remain thermally inaccessible, even when X=Br.
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Affiliation(s)
- Rachel R Parker
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Julia P Sarju
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Adrian C Whitwood
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - J A Gareth Williams
- Department of Chemistry, Durham University, University Science Laboratories, South Road, Durham, DH1 3LE, UK
| | - Jason M Lynam
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
| | - Duncan W Bruce
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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31
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Shahsavari HR, Babadi Aghakhanpour R, Nikravesh M, Ozdemir J, Golbon Haghighi M, Notash B, Beyzavi H. Highly Emissive Cycloplatinated(II) Complexes Obtained by the Chloride Abstraction from the Complex [Pt(ppy)(PPh3)(Cl)]: Employing Various Silver Salts. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00461] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - John Ozdemir
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | | | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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32
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Attia M, Youssef A, Khan ZA, Abou-Omar M. Alpha fetoprotein assessment by using a nano optical sensor thin film binuclear Pt-2-aminobenzimidazole-Bipyridine for early diagnosis of liver cancer. Talanta 2018; 186:36-43. [DOI: 10.1016/j.talanta.2018.04.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 11/26/2022]
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33
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Affiliation(s)
- Van Ha Nguyen
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
| | - Balamurugan Kandasamy
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - John H. K. Yip
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore
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34
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Jamshidi M, Babaghasabha M, Shahsavari HR, Nabavizadeh SM. The influence of thiolate ligands on the luminescence properties of cycloplatinated(ii) complexes. Dalton Trans 2018; 46:15919-15927. [PMID: 29119183 DOI: 10.1039/c7dt03599c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Complexes [Pt(C^N)(PPh3)Cl] (C^N = bzq (7,8-benzoquinolinyl, A) and ppy (2-phenylpyridinyl, B)) were reacted with various thiolate ligands to afford complexes [Pt(C^N)(PPh3)(κ1-S-SR)], C^N = bzq, R = SPh (thiophenolate, 1a); C^N = ppy, R = SPh (1b); C^N = bzq, R = Spy (pyridine-2-thiolate, 2a); C^N = ppy, R = Spy (2b); C^N = bzq, R = SpyN (pyrimidine-2-thiolate, 3a); C^N = ppy, R = SpyN (3b). Complexes 1-3 were characterized by NMR spectroscopy, and the solid-state structures of 1a and 2a were determined by X-ray diffraction methods. Replacing a chloride ligand with electron-rich thiolates changes the lowest energy singlet and triplet excited states to the ones that feature charge transfer from the thiolate (mixed with some metal character) to the C^N ligand, which was supported by TD-DFT calculations. All complexes are emissive at 298 K in the solid state except 2b and 3b, which are emissive only at 77 K having a less rigid structure compared to others. The emission of 1a and 1b originates from a low-energy excited state of dPt/πSR → π*C^N while 3a exhibits a 3LC/3MLCT transition. For 1a and 1b, the radiative rate and the quantum efficiency are higher in a rigid environment such as a solid compared to a polymer and solution. Decreasing the rigidity of the environment leads to a flexibility of rotation of the -SR around the axis of the Pt-S bond. So the geometry can be easily changed after radiation and the lowest lying triplet excited state would have the effective contribution of the dd* transition, which opens a nonradiative pathway at room temperature.
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Affiliation(s)
- Mahboubeh Jamshidi
- Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran.
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35
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Shen W, Zhang W, Zhu C. Theoretical study of the substituent effect controlling the radiative and non-radiative decay processes of platinum(ii) complexes. Phys Chem Chem Phys 2018; 19:23532-23540. [PMID: 28829465 DOI: 10.1039/c7cp04376g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Six platinum complexes bearing different electron-withdrawing groups (-CN, -NO2, -o-carborane, -SF5 and -CF2CF2CF3) have been designed to explore the electron-withdrawing capability and the conjugative effect of the substituents, and density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations have been performed to determine their electronic structures and phosphorescent properties. Three factors, including the oscillator strength μ(Sn) for S0-Sn excitations, the energy gap between the triplet and singlet states ΔE(Sn-T1) and the spin-orbital coupling 〈T1|ĤSOC|Sn〉, have been calculated to analyze the radiative processes. In addition, temperature-independent, temperature-dependent and triplet-triplet annihilation (TTA) have been analyzed to determine the non-radiative decay processes. Introducing strong electron-withdrawing groups into phosphorescent transition-metal complexes has a significant impact on the phosphorescent properties and some regularity besides the inductive effect (the electron-withdrawing capability) and the conjugative effect of the substituents. The stronger electron-withdrawing capability and smaller conjugative effect can give rise to blue-shifted emission behavior and give larger radiative decay rate constants. The results demonstrate that complex 4 (-NO2 substituted) and complex 2 (-o-carborane) are possible candidates for blue-emitting materials.
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Affiliation(s)
- Wei Shen
- Department of Applied Chemistry, Institute of Molecular Science and Center for Interdisciplinary Molecular Science, National Chiao-Tung University, Hsinchu 30010, Taiwan. and School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Wenting Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P. R. China
| | - Chaoyuan Zhu
- Department of Applied Chemistry, Institute of Molecular Science and Center for Interdisciplinary Molecular Science, National Chiao-Tung University, Hsinchu 30010, Taiwan.
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36
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He M, Ching HYV, Policar C, Bertrand HC. Rhenium tricarbonyl complexes with arenethiolate axial ligands. NEW J CHEM 2018. [DOI: 10.1039/c8nj01960f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Pyta and Tapy-based [Re(N^N)(CO)3X] complexes with para-substituted benzenethiolates as axial ligand are reported along with their electrochemical and photophysical properties.
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Affiliation(s)
- Menglan He
- Laboratoire des biomolécules
- LBM
- Département de chimie
- École normale supérieure
- PSL University
| | - H. Y. Vincent Ching
- Laboratoire des biomolécules
- LBM
- Département de chimie
- École normale supérieure
- PSL University
| | - Clotilde Policar
- Laboratoire des biomolécules
- LBM
- Département de chimie
- École normale supérieure
- PSL University
| | - Helene C. Bertrand
- Laboratoire des biomolécules
- LBM
- Département de chimie
- École normale supérieure
- PSL University
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37
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Sesolis H, Chan CKM, Gontard G, Fu HLK, Yam VWW, Amouri H. Dinuclear (N∧C∧N) Pincer Pt(II) Complexes with Bridged Organometallic Linkers: Synthesis, Structures, Self-Aggregation, and Photophysical Properties. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00680] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hugo Sesolis
- Sorbonne Universités, UPMC Université Paris 06, and CNRS, IPCM UMR 8232, , 4 place Jussieu, Paris CEDEX 05 75252, France
| | - Carmen Ka-Man Chan
- Institute
of Molecular Functional Materials (Areas of Excellence Scheme, University
Grants Committee, Hong Kong) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Geoffrey Gontard
- Sorbonne Universités, UPMC Université Paris 06, and CNRS, IPCM UMR 8232, , 4 place Jussieu, Paris CEDEX 05 75252, France
| | - Heidi Li-Ki Fu
- Institute
of Molecular Functional Materials (Areas of Excellence Scheme, University
Grants Committee, Hong Kong) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Vivian Wing-Wah Yam
- Institute
of Molecular Functional Materials (Areas of Excellence Scheme, University
Grants Committee, Hong Kong) and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China
| | - Hani Amouri
- Sorbonne Universités, UPMC Université Paris 06, and CNRS, IPCM UMR 8232, , 4 place Jussieu, Paris CEDEX 05 75252, France
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38
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Ghosh MK, Mandal S, Islam A, Mohapatra S, Chattopadhyay S. Ruthenium-Carbon(Aryl) Bond Cleavage and Change in the Ligand Coordination Mode in a Four-Membered Ortho-Metalated Ruthenium(II) Organometallics Promoted by Thiolato Ligands. ChemistrySelect 2017. [DOI: 10.1002/slct.201701046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mrinal K. Ghosh
- Department of Chemistry; University of Kalyani; Kalyani, Nadia 741235, WB India
| | - Suman Mandal
- Department of Chemistry; University of Kalyani; Kalyani, Nadia 741235, WB India
| | - Anikul Islam
- Department of Chemistry; University of Kalyani; Kalyani, Nadia 741235, WB India
| | - Sudip Mohapatra
- Department of Chemistry; Missouri University of S & T; Rolla, MO 65409 USA
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39
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Zhang W, Wang J, Xu Y, Li W, Shen W. Fine tuning phosphorescent properties of platinum complexes via different N -heterocyclic-based CˆNˆN ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Fereidoonnezhad M, Kaboudin B, Mirzaee T, Babadi Aghakhanpour R, Golbon Haghighi M, Faghih Z, Faghih Z, Ahmadipour Z, Notash B, Shahsavari HR. Cyclometalated Platinum(II) Complexes Bearing Bidentate O,O′-Di(alkyl)dithiophosphate Ligands: Photoluminescence and Cytotoxic Properties. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00054] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Babak Kaboudin
- Department
of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Yousef Sobouti Boulevard, Zanjan 45137-6731, Iran
| | | | - Reza Babadi Aghakhanpour
- Department
of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Yousef Sobouti Boulevard, Zanjan 45137-6731, Iran
| | | | | | | | | | - Behrouz Notash
- Department
of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
| | - Hamid R. Shahsavari
- Department
of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Yousef Sobouti Boulevard, Zanjan 45137-6731, Iran
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41
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Maroń A, Czerwińska K, Małecki JG, Machura B, Szłapa-Kula A, Krompiec S. Chloride Platinum(II) Coordination Compounds with4’-Substituted Terpirydine Ligands as Donor-Acceptor-Donor Systems - Structural, Electrochemical and Luminescence Studies. ChemistrySelect 2017. [DOI: 10.1002/slct.201601589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Anna Maroń
- Department of Crystallography, Institute of Chemistry; Univeristy of Silesia; 9 Szkolna St. 40-006 Katowice Poland
| | - Katarzyna Czerwińska
- Department of Crystallography, Institute of Chemistry; Univeristy of Silesia; 9 Szkolna St. 40-006 Katowice Poland
| | - Jan G. Małecki
- Department of Crystallography, Institute of Chemistry; Univeristy of Silesia; 9 Szkolna St. 40-006 Katowice Poland
| | - Barbara Machura
- Department of Crystallography, Institute of Chemistry; Univeristy of Silesia; 9 Szkolna St. 40-006 Katowice Poland
| | - Agata Szłapa-Kula
- Department of Inorganic, Organometallic Chemistry and Catalysis, Institute of Chemistry; Univeristy of Silesia; 9th Szkolna St. 40-006 Katowice Poland
| | - Stanisław Krompiec
- Department of Inorganic, Organometallic Chemistry and Catalysis, Institute of Chemistry; Univeristy of Silesia; 9th Szkolna St. 40-006 Katowice Poland
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42
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Hebenbrock M, Stegemann L, Kösters J, Doltsinis NL, Müller J, Strassert CA. Phosphorescent Pt(ii) complexes bearing a monoanionic C^N^N luminophore and tunable ancillary ligands. Dalton Trans 2017; 46:3160-3169. [DOI: 10.1039/c7dt00393e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new monoanionic pincer luminophore is presented, yielding phosphorescent Pt(ii) complexes bearing a neutral 1,2,3-triazole ring introduced via click chemistry. The overall charge, intermolecular interactions and excited state properties can be manipulated and controlled.
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Affiliation(s)
- Marian Hebenbrock
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Linda Stegemann
- Physikalisches Institut and Center for Nanotechnology
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Nikos L. Doltsinis
- Institut für Festkörpertheorie and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Jens Müller
- Institut für Anorganische und Analytische Chemie
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
| | - Cristian A. Strassert
- Physikalisches Institut and Center for Nanotechnology
- Westfälische Wilhelms-Universität Münster
- D-48149 Münster
- Germany
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43
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Zhao J, Dang F, Feng Z, Liu B, Yang X, Wu Y, Zhou G, Wu Z, Wong WY. Highly efficient electroluminescent PtII ppy-type complexes with monodentate ligands. Chem Commun (Camb) 2017. [PMID: 28636008 DOI: 10.1039/c7cc03251j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Functional PtII ppy-type complexes (ppy = 2-phenylpyridine anion) with pyridine and chloride monodentate ligands are prepared, which show high electroluminescence efficiencies.
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Affiliation(s)
- Jiang Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Feifan Dang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Zhao Feng
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Boao Liu
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Xiaolong Yang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Yong Wu
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Guijiang Zhou
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter
- Department of Chemistry
- School of Science
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
| | - Zhaoxin Wu
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education
- Faculty of Electronic and Information Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- P. R. China
- Institute of Molecular Functional Materials and Department of Chemistry
- Hong Kong Baptist University
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44
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Shahsavari HR, Babadi Aghakhanpour R, Hossein-Abadi M, Golbon Haghighi M, Notash B, Fereidoonnezhad M. A new approach to the effects of isocyanide (CN-R) ligands on the luminescence properties of cycloplatinated(ii) complexes. NEW J CHEM 2017. [DOI: 10.1039/c7nj03110f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cycloplatinated complexes bearing isocyanides were prepared and characterized. The complexes exhibited strong luminescence while the nature of R substituents in isocyanides affected the luminescence characteristics.
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Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Mojdeh Hossein-Abadi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | | | - Behrouz Notash
- Department of Chemistry
- Shahid Beheshti University
- Tehran 19839-69411
- Iran
| | - Masood Fereidoonnezhad
- Department of Medicinal Chemistry
- School of Pharmacy; Cancer
- Environmental and Petroleum Pollutants Research Center
- Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
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45
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Attia M, Al-Radadi NS. Nano optical sensor binuclear Pt-2-pyrazinecarboxylic acid –bipyridine for enhancement of the efficiency of 3-nitrotyrosine biomarker for early diagnosis of liver cirrhosis with minimal hepatic encephalopathy. Biosens Bioelectron 2016; 86:406-412. [DOI: 10.1016/j.bios.2016.06.074] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/22/2016] [Accepted: 06/22/2016] [Indexed: 01/09/2023]
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46
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Juliá F, García-Legaz MD, Bautista D, González-Herrero P. Influence of Ancillary Ligands and Isomerism on the Luminescence of Bis-cyclometalated Platinum(IV) Complexes. Inorg Chem 2016; 55:7647-60. [DOI: 10.1021/acs.inorgchem.6b01100] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Fabio Juliá
- Departamento de Química Inorgánica, Facultad de Química and ‡SAI, Universidad de Murcia, Apdo. 4021, 30071 Murcia, Spain
| | - María-Dulce García-Legaz
- Departamento de Química Inorgánica, Facultad de Química and ‡SAI, Universidad de Murcia, Apdo. 4021, 30071 Murcia, Spain
| | - Delia Bautista
- Departamento de Química Inorgánica, Facultad de Química and ‡SAI, Universidad de Murcia, Apdo. 4021, 30071 Murcia, Spain
| | - Pablo González-Herrero
- Departamento de Química Inorgánica, Facultad de Química and ‡SAI, Universidad de Murcia, Apdo. 4021, 30071 Murcia, Spain
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47
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Du J, Luo Y, Xie X, Hu W, Shen W. Tuning the electronic and photophysical properties of platinum(II) complexes through ancillary ligand modification: a theoretical study. MOLECULAR SIMULATION 2016. [DOI: 10.1080/08927022.2016.1168523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Junhong Du
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Yafei Luo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Xiaohua Xie
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
| | - Wuhong Hu
- School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, P.R. China
| | - Wei Shen
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, P.R. China
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48
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Omae I. Application of the five-membered ring blue light-emitting iridium products of cyclometalation reactions as OLEDs. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.08.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Moussa J, Haddouche K, Chamoreau LM, Amouri H, Gareth Williams JA. New N^C^N-coordinated Pd(ii) and Pt(ii) complexes of a tridentate N-heterocyclic carbene ligand featuring a 6-membered central ring: synthesis, structures and luminescence. Dalton Trans 2016; 45:12644-8. [DOI: 10.1039/c6dt02415g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Photoluminescent pincer-like Pd(ii) and Pt(ii) complexes with a rare tridentate N^C^N ligand with a six membered NHC central core are described. Solid-state packing exhibits M(ii)⋯M(ii) and π–π interactions.
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Affiliation(s)
- Jamal Moussa
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05
- France
| | - Kamel Haddouche
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05
- France
| | - Lise-Marie Chamoreau
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05
- France
| | - Hani Amouri
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05
- France
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50
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Juliá F, Bautista D, González-Herrero P. Developing strongly luminescent platinum(IV) complexes: facile synthesis of bis-cyclometalated neutral emitters. Chem Commun (Camb) 2015; 52:1657-60. [PMID: 26659999 DOI: 10.1039/c5cc09566b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A straightforward, one-pot procedure has been developed for the synthesis of bis-cyclometalated chloro(methyl)platinum(IV) complexes with a wide variety of heteroaromatic ligands of the 2-arylpyridine type. The new compounds exhibit phosphorescent emissions in the blue to orange colour range and represent the most efficient Pt(IV) emitters reported to date, with quantum yields up to 0.81 in fluid solutions at room temperature.
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Affiliation(s)
- Fabio Juliá
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Apdo. 4021, 30071 Murcia, Spain.
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