1
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Singh V, Sinha N, Adhikari D. Photochemical pincer-catalyzed reductive cyclisation towards indolines and oxindoles. Chem Commun (Camb) 2024. [PMID: 39145410 DOI: 10.1039/d4cc03670k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
An organophotocatalytic method has been described towards the synthesis of indolines and oxindoles starting from unusual α-chloro amide and N-(2-chlorophenyl)-N-alkyl methacrylamide substrates. This marks a notable improvement since the earlier syntheses utilized iridium and gold catalysts, and involved C-I or C-Br bond cleavage as the initial step. Our photocatalyst is a pincer ligand that can be easily deprotonated to make a very strong reducing agent. The reductive cleavage of the carbon-chloride bond, and subsequent 5-exo-trig ring cyclization, followed by hydrogen atom abstraction, prepare the desired heterocycles under very mild reaction conditions. An atom economic use of KOtBu has been shown to demonstrate the unusual trifunctional role of the latter.
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Affiliation(s)
- Vikramjeet Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
| | - Nidhi Sinha
- Department of Chemistry, Indian Institute of Technology Ropar, Ropar-140001, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector-81, Knowledge City, Manauli-140306, India.
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2
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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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3
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Liu DC, Luo ZM, Aramburu-Trošelj BM, Ma F, Wang JW. Cobalt-based tripodal complexes as molecular catalysts for photocatalytic CO 2 reduction. Chem Commun (Camb) 2023. [PMID: 37962468 DOI: 10.1039/d3cc04759h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Construction of artificial photosynthetic systems including CO2 reduction is a promising pathway to produce carbon-neutral fuels and mitigate the greenhouse effect concurrently. However, the exploitation of earth-abundant catalysts for photocatalytic CO2 reduction remains a fundamental challenge, which can be assisted by a systematic summary focusing on a specific catalyst family. Cobalt-based complexes featuring tripodal ligands should merit more insightful discussion and summarization, as they are one of the most examined catalyst families for CO2 photoreduction. In this feature article, the key developments of cobalt-based tripodal complexes as molecular catalysts for light-driven CO2 reduction are discussed to offer an upcoming perspective, analyzing the present progress in electronic/steric tuning through ligand modification and dinuclear design to achieve a synergistic effect, as well as the bottlenecks for further development.
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Affiliation(s)
- Dong-Cheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Yucai Road No. 15, Guilin 541004, China.
| | - Zhi-Mei Luo
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Bruno M Aramburu-Trošelj
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica, Analítica y Química Física, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Fan Ma
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Jia-Wei Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
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4
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Kim K, You E, Hong S. Nucleophilic C4-selective (hetero) arylation of pyridines for facile synthesis of heterobiaryls. Front Chem 2023; 11:1254632. [PMID: 37720719 PMCID: PMC10502421 DOI: 10.3389/fchem.2023.1254632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/17/2023] [Indexed: 09/19/2023] Open
Abstract
The synthesis of heterobiaryl compounds holds significant value in organic chemistry due to their extensive range of applications. Herein, we report a highly efficient strategy for conducting C4-selective (hetero) arylation of pyridines using N-aminopyridinium salts. The reaction proceeds readily at room temperature in the presence of a base, thus eliminating the requirement for catalysts or oxidants. This method allows for the installation of various electron-rich (hetero) aryl groups on pyridines, resulting in the streamlined synthesis of highly valuable C4-(hetero) aryl pyridine derivatives, which are otherwise challenging to acquire via conventional methods. This simple and straightforward method will facilitate access to a range of heterobiaryl compounds thereby promoting their application in various scientific disciplines.
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Affiliation(s)
- Kewon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Euna You
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
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5
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Abstract
Endogenous photosensitizers play a critical role in both beneficial and harmful light-induced transformations in biological systems. Understanding their mode of action is essential for advancing fields such as photomedicine, photoredox catalysis, environmental science, and the development of sun care products. This review offers a comprehensive analysis of endogenous photosensitizers in human skin, investigating the connections between their electronic excitation and the subsequent activation or damage of organic biomolecules. We gather the physicochemical and photochemical properties of key endogenous photosensitizers and examine the relationships between their chemical reactivity, location within the skin, and the primary biochemical events following solar radiation exposure, along with their influence on skin physiology and pathology. An important take-home message of this review is that photosensitization allows visible light and UV-A radiation to have large effects on skin. The analysis presented here unveils potential causes for the continuous increase in global skin cancer cases and emphasizes the limitations of current sun protection approaches.
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Affiliation(s)
- Erick L Bastos
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Frank H Quina
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
- Department of Chemical Engineering, Polytechnic School, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
| | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, São Paulo, Brazil
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6
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Li SR, Tan YM, Zhang L, Zhou CH. Comprehensive Insights into Medicinal Research on Imidazole-Based Supramolecular Complexes. Pharmaceutics 2023; 15:pharmaceutics15051348. [PMID: 37242590 DOI: 10.3390/pharmaceutics15051348] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
The electron-rich five-membered aromatic aza-heterocyclic imidazole, which contains two nitrogen atoms, is an important functional fragment widely present in a large number of biomolecules and medicinal drugs; its unique structure is beneficial to easily bind with various inorganic or organic ions and molecules through noncovalent interactions to form a variety of supramolecular complexes with broad medicinal potential, which is being paid an increasing amount of attention regarding more and more contributions to imidazole-based supramolecular complexes for possible medicinal application. This work gives systematical and comprehensive insights into medicinal research on imidazole-based supramolecular complexes, including anticancer, antibacterial, antifungal, antiparasitic, antidiabetic, antihypertensive, and anti-inflammatory aspects as well as ion receptors, imaging agents, and pathologic probes. The new trend of the foreseeable research in the near future toward imidazole-based supramolecular medicinal chemistry is also prospected. It is hoped that this work provides beneficial help for the rational design of imidazole-based drug molecules and supramolecular medicinal agents and more effective diagnostic agents and pathological probes.
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Affiliation(s)
- Shu-Rui Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yi-Min Tan
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Ling Zhang
- School of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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7
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Blue Emissive Palladium(II) Complex with Benzoquinoline and N-heterocyclic Carbene Ligands. J Organomet Chem 2023. [DOI: 10.1016/j.jorganchem.2023.122669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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8
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Amouri H. Luminescent Complexes of Platinum, Iridium, and Coinage Metals Containing N-Heterocyclic Carbene Ligands: Design, Structural Diversity, and Photophysical Properties. Chem Rev 2023; 123:230-270. [PMID: 36315851 DOI: 10.1021/acs.chemrev.2c00206] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The employment of N-heterocyclic carbenes (NHCs) to design luminescent metal compounds has been the focus of recent intense investigations because of the strong σ-donor properties, which bring stability to the whole system and tend to push the d-d dark states so high in energy that they are rendered thermally inaccessible, thereby generating highly emissive complexes for useful applications such as organic light-emitting diodes (OLEDs), or featuring chiroptical properties, a field that is still in its infancy. Among the NHC complexes, those containing organic chromophores such as naphthalimide, pyrene, and carbazole exhibit rich emission behavior and thus have attracted extensive interest in the past five years, especially carbene coinage metal complexes with carbazolate ligands. In this review, the design strategies of NHC-based luminescent platinum and iridium complexes with large spin-orbit-coupling (SOC) are described first. Subsequent paragraphs illustrate the recent advances of luminescent coinage metal complexes with nucleophilic- and electrophilic-based carbenes based on silver, gold, and copper metal complexes that have the ability to display rich excited state emissions in particular via thermally activated delayed fluorescence (TADF). The luminescence mechanism and excited state dynamics are also described. We then summarize the advance of NHC-metal complexes in the aforementioned fields in recent years. Finally, we propose the development trend of this fast-growing field of luminescent NHC-metal complexes.
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Affiliation(s)
- Hani Amouri
- CNRS, IPCM (UMR 8232), Sorbonne Université-Faculté des Sciences et Ingénerie Campus Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris, Cedex 05, France
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9
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Estevão BM, Vilela RRC, Geremias IP, Zanoni KPS, de Camargo ASS, Zucolotto V. Mesoporous silica nanoparticles incorporated with Ir(III) complexes: From photophysics to photodynamic therapy. Photodiagnosis Photodyn Ther 2022; 40:103052. [PMID: 35934182 DOI: 10.1016/j.pdpdt.2022.103052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/26/2022] [Accepted: 08/02/2022] [Indexed: 12/14/2022]
Abstract
Organically modified mesoporous silica nanoparticles (MSNs) containing Ir complexes (Ir1, Ir2 and Ir3) were successfully synthesized. These Ir-entrapped MCM41-COOH nanoparticles have shown relevant photophysical characteristics including high efficiency in the photoproduction and delivery of singlet oxygen (1O2), which is particularly promising for photodynamic therapy (PDT) applications. In vitro tests have evidenced that complex@MCM41-COOH are able to reduce cell proliferation after 10 min of blue-light irradiation in Hep-G2 liver cancer cells.
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Affiliation(s)
- Bianca M Estevão
- Nanomedicine and Nanotoxicology Group, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil.
| | - Raquel R C Vilela
- Laboratory of Spectroscopy of Functional Materials, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil.
| | - Isabella P Geremias
- Nanomedicine and Nanotoxicology Group, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil
| | - Kassio P S Zanoni
- Laboratory of Spectroscopy of Functional Materials, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil; Molecular Optoelectronic Devices, Instituto de Ciencia Molecular (ICMol), University of Valencia, Catedrático J. Beltrán 2, Paterna, Valencia 46980, Spain
| | - Andrea S S de Camargo
- Laboratory of Spectroscopy of Functional Materials, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil
| | - Valtencir Zucolotto
- Nanomedicine and Nanotoxicology Group, São Carlos Institute of Physics, University of São Paulo, São Carlos, SP 13566-590, Brazil
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10
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Shen Y, Kong X, Yang F, Bian HD, Cheng G, Cook TR, Zhang Y. Deep Blue Phosphorescence from Platinum Complexes Featuring Cyclometalated N-Pyridyl Carbazole Ligands with Monocarborane Clusters (CB 11H 12-). Inorg Chem 2022; 61:16707-16717. [PMID: 36205461 DOI: 10.1021/acs.inorgchem.2c02467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The utilization of deep blue phosphorescent materials in high-performance displays and solid-state lighting requires high quantum efficiencies and color purities. Here, we describe the preparation and luminescent properties of novel platinum triplet emitters featuring cyclometalated N-pyridyl-carbazole ligands functionalized with closo-monocarborane clusters [CB11H12]-. All reported complexes were fully characterized by using standard small molecule techniques (UV-vis, cyclic voltammetry, nuclear magnetic resonance (NMR), high-resolution mass spectrometry (HRMS)), and their solid-state structures were elucidated by X-ray diffraction. These platinum phosphors emit in the blue region of the visible wavelength spectrum in both the solid and solution states. Complex 4a exhibits the highest luminous efficiency at λem = 439 nm with a photoluminescent quantum yield (PLQY) of 60% by dispersing in a PMMA matrix. Electrochemical and computational studies of complexes 4a and 4b revealed that the blue phosphorescence originates mainly from intraligand 3π → π* (3ILCT) transitions with relatively small 3MLCT mixing. A deep-blue OLED containing 4a as the light-emitting dopant was successfully fabricated using a solution-processed method, and the device exhibited blue photoluminescence with CIE coordinates of (0.17, 0.15) and a maximum external quantum efficiency (EQEmax) value of 6.2%. This article represents the pioneering study of a deep blue PhOLED using a Pt complex bearing a closo-monocarborane anion substituent, providing a new avenue into the preparation of novel triplet emitters based on boron-rich cluster anions.
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Affiliation(s)
- Yunjun Shen
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Xiangjun Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Fengjie Yang
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - He-Dong Bian
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Gang Cheng
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Timothy R Cook
- Department of Chemistry, University at Buffalo, The State University of New York, 856 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Yuzhen Zhang
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
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11
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Dual electronic effects achieving a high-performance Ni(II) pincer catalyst for CO 2 photoreduction in a noble-metal-free system. Proc Natl Acad Sci U S A 2022; 119:e2119267119. [PMID: 35998222 PMCID: PMC9436338 DOI: 10.1073/pnas.2119267119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A carbazolide-bis(NHC) NiII catalyst (1; NHC, N-heterocyclic carbene) for selective CO2 photoreduction was designed herein by a one-stone-two-birds strategy. The extended π-conjugation and the strong σ/π electron-donation characteristics (two birds) of the carbazolide fragment (one stone) lead to significantly enhanced activity for photoreduction of CO2 to CO. The turnover number (TON) and turnover frequency (TOF) of 1 were ninefold and eightfold higher than those of the reported pyridinol-bis(NHC) NiII complex at the same catalyst concentration using an identical Ir photosensitizer, respectively, with a selectivity of ∼100%. More importantly, an organic dye was applied to displace the Ir photosensitizer to develop a noble-metal-free photocatalytic system, which maintained excellent performance and obtained an outstanding quantum yield of 11.2%. Detailed investigations combining experimental and computational studies revealed the catalytic mechanism, which highlights the potential of the one-stone-two-birds effect.
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12
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Schwehr BJ, Hartnell D, Massi M, Hackett MJ. Luminescent Metal Complexes as Emerging Tools for Lipid Imaging. Top Curr Chem (Cham) 2022; 380:46. [PMID: 35976575 PMCID: PMC9385838 DOI: 10.1007/s41061-022-00400-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 06/20/2022] [Indexed: 12/01/2022]
Abstract
Fluorescence microscopy is a key tool in the biological sciences, which finds use as a routine laboratory technique (e.g., epifluorescence microscope) or more advanced confocal, two-photon, and super-resolution applications. Through continued developments in microscopy, and other analytical methods, the importance of lipids as constituents of subcellular organelles, signalling or regulating molecules continues to emerge. The increasing recognition of the importance of lipids to fundamental cell biology (in health and disease) has prompted the development of protocols and techniques to image the distribution of lipids in cells and tissues. A diverse suite of spectroscopic and microscopy tools are continuously being developed and explored to add to the "toolbox" to study lipid biology. A relatively recent breakthrough in this field has been the development and subsequent application of metal-based luminescent complexes for imaging lipids in biological systems. These metal-based compounds appear to offer advantages with respect to their tunability of the photophysical properties, in addition to capabilities centred around selectively targeting specific lipid structures or classes of lipids. The presence of the metal centre also opens the path to alternative imaging modalities that might not be applicable to traditional organic fluorophores. This review examines the current progress and developments in metal-based luminescent complexes to study lipids, in addition to exploring potential new avenues and challenges for the field to take.
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Affiliation(s)
- Bradley J Schwehr
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia
| | - David Hartnell
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.,Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia
| | - Massimiliano Massi
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia.
| | - Mark J Hackett
- School of Molecular and Life Sciences, Curtin University, Perth, WA, 6845, Australia. .,Curtin Health Innovation Research Institute, Curtin University, Perth, WA, 6845, Australia.
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13
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Okoye-Chine CG, Otun K, Shiba N, Rashama C, Ugwu SN, Onyeaka H, Okeke CT. Conversion of carbon dioxide into fuels—A review. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Klett J, Woźniak Ł, Cramer N. 1,3,2‐Diazaphospholene‐Catalyzed Reductive Cyclizations of Organohalides**. Angew Chem Int Ed Engl 2022; 61:e202202306. [PMID: 35419901 PMCID: PMC9401058 DOI: 10.1002/anie.202202306] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Indexed: 01/08/2023]
Abstract
1,3,2‐diazaphospholenes hydrides (DAP‐Hs) are highly nucleophilic organic hydrides serving as main‐group catalysts for a range of attractive transformations. DAP hydrides can act as stoichiometric hydrogen atom transfer agents in radical reactions. Herein, we report a DAP‐catalyzed reductive radical cyclization of a broad range of aryl and alkyl halides under mild conditions. The pivotal DAP catalyst turnover was achieved by a DBU‐assisted σ‐bond metathesis between the formed DAP halide and HBpin, which rapidly regenerates DAP‐H. The transformation is significantly accelerated by irradiation with visible light. Mechanistic investigations indicate that visible light irradiation leads to the formation of DAP dimers, which are in equilibrium with DAP radicals and accelerate the cyclization. The direct use of (DAP)2 enabled a catalytic protocol in the absence of light.
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Affiliation(s)
- Johannes Klett
- Institute of Chemical Sciences and Engineering (ISIC) EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne Switzerland
| | - Łukasz Woźniak
- Institute of Chemical Sciences and Engineering (ISIC) EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne Switzerland
| | - Nicolai Cramer
- Institute of Chemical Sciences and Engineering (ISIC) EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne Switzerland
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15
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Rashid A, Mondal S, Mondal S, Ghosh P. A bis‐heteroleptic imidazolium‐bipyridine functionalized iridium(III) complex for fluorescence lifetime‐based recognition and sensing of phosphates. Chem Asian J 2022; 17:e202200393. [DOI: 10.1002/asia.202200393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/01/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Ambreen Rashid
- Indian Association for the Cultivation of Science School of Chemical Sciences INDIA
| | - Sahidul Mondal
- Indian Association for the Cultivation of Science School of Chemical Sciences INDIA
| | - Subal Mondal
- Indian Association for the Cultivation of Science School of Chemical Sciences INDIA
| | - Pradyut - Ghosh
- Indian Association for the Cultivation of Science School of Chemical Sciences 2A & 2B Raja S. C. Mullick RoadJadavpur 700032 Kolkata INDIA
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16
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Xiong X, Huang KB, Wang Y, Cao B, Luo Y, Chen H, Yang Y, Long Y, Liu M, Chan ASC, Liang H, Zou T. Target Profiling of an Iridium(III)-Based Immunogenic Cell Death Inducer Unveils the Engagement of Unfolded Protein Response Regulator BiP. J Am Chem Soc 2022; 144:10407-10416. [PMID: 35658433 DOI: 10.1021/jacs.2c02435] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Clinical chemotherapeutic drugs have occasionally been observed to induce antitumor immune responses beyond the direct cytotoxicity. Such effects are coined as immunogenic cell death (ICD), representing a "second hit" from the host immune system to tumor cells. Although chemo-immunotherapy is highly promising, ICD inducers remain sparse with vague drug-target mechanisms. Here, we report an endoplasmic reticulum stress-inducing cyclometalated Ir(III)-bisNHC complex (1a) as a new ICD inducer, and based on this compound, a clickable photoaffinity probe was designed for target identification, which unveiled the engagement of the master regulator protein BiP (binding immunoglobulin protein)/GRP78 of the unfolded protein response pathway. This has been confirmed by a series of cellular and biochemical studies including fluorescence microscopy, cellular thermal shift assay, enzymatic assays, and so forth, showing the capability of 1a for BiP destabilization. Notably, besides 1a, the previously reported ICD inducers including KP1339, mitoxantrone, and oxaliplatin were also found to engage BiP interaction, suggesting the important role of BiP in eliciting anticancer immunity. We believe that the ICD-related target information in this work will help to understand the mode of action of ICD that is beneficial to designing new ICD agents with high specificity and improved efficacy.
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Affiliation(s)
- Xiaolin Xiong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Ke-Bin Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Yuan Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Bei Cao
- Warshel Institute for Computational Biology, and General Education Division, The Chinese University of Hong Kong, Shenzhen 518172, P. R. China
| | - Yunli Luo
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Huowen Chen
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Yan Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Yan Long
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Moyi Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Albert S C Chan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Taotao Zou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China
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17
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Poland EM, Ho CC. Photoactive N‐Heterocyclic Carbene Transition Metal Complexes in Bond‐Forming Photocatalysis: State‐of‐the‐Art and Opportunities. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6746] [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)
- Eve M. Poland
- School of Natural Sciences – Chemistry University of Tasmania Hobart Tasmania Australia
| | - Curtis C. Ho
- School of Natural Sciences – Chemistry University of Tasmania Hobart Tasmania Australia
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18
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Klett J, Wozniak L, Cramer N. 1,3,2‐Diazaphospholene‐Catalyzed Reductive Cyclizations of Organohalides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Johannes Klett
- EPFL: Ecole Polytechnique Federale de Lausanne ISIC SWITZERLAND
| | - Lukasz Wozniak
- EPFL: Ecole Polytechnique Federale de Lausanne ISIC SWITZERLAND
| | - Nicolai Cramer
- Ecole Polytechnique Federale de Lausanne ISIC, LCSA EPFL SB ISIC LCSA BCH 4305 Bat. BCH 1015 Lausanne SWITZERLAND
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19
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Yiu SC, Ho PY, Kwok YY, He X, Wang Y, Yu WH, Ho CL, Huang S. Development of Strong Visible-Light-Absorbing Cyclometalated Iridium(III) Complexes for Robust and Efficient Light-Driven Hydrogen Production. Chemistry 2022; 28:e202104575. [PMID: 35170133 DOI: 10.1002/chem.202104575] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Indexed: 12/12/2022]
Abstract
Weak light absorption of common Ir(III) complexes (e. g., using phenylpyridine as the ligand) has hindered their applications in photocatalytic hydrogen generation from water as an efficient photosensitizer. To address this issue, a series of cyclometalated Ir(III) complexes (Ir1-Ir5), featuring different electron-donating substituents to enhance the absorptivity, have been synthesized and studied as photosensitizers (PSs) for light-driven hydrogen production from water. Ir6-Ir7 were prepared as fundamental systems for comparisons. Electron donors, including 9-phenylcarbazole, triphenylamine, 4,4'-dimethoxytriphenylamine, 4,4'-di(N-hexylcarbazole)triphenylamine moieties were introduced on 6-(thiophen-2-yl)phenanthridine-based cyclometalating (C^N) ligands to explore the donor effect on the hydrogen evolution performance of these cationic Ir(III) complexes. Remarkably, Ir4 with 4,4'-dimethoxytriphenylamine achieved the highest turn-over number (TON) of 12 300 and initial turnover frequency (TOFi ) of 394 h-1 , with initial activity (activityi ) of 547 000 μmol g-1 h-1 and initial apparent quantum yield (AQYi ) of 9.59 %, under the illumination of blue light-emitting diodes (LEDs) for 105 hours, which demonstrated a stable three-component photocatalytic system with high efficiency. The TON (based on n(H2 )/n(PSr)) in this study is the highest value reported to date among the similar photocatalytic systems using Ir(III) complexes with Pt nanoparticles as catalyst. The great potential of using triphenylamine-based Ir(III) PSs in boosting photocatalytic performance has also been shown.
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Affiliation(s)
- Sze-Chun Yiu
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, P. R. China.,Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
| | - Po-Yu Ho
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, P. R. China.,Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China.,Biological Inorganic Chemistry Laboratory, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, United Kingdom.,Department of Chemistry, King's College London Britannia House, 7 Trinity Street, London, SE1 1DB, United Kingdom
| | - Yan-Yi Kwok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, P. R. China
| | - Xiaojie He
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, P. R. China
| | - Yi Wang
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
| | - Wai-Hong Yu
- Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
| | - Cheuk-Lam Ho
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University Hung Hom, Hong Kong, P. R. China.,PolyU Shenzhen Research Institute, Shenzhen, P. R. China.,Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
| | - Shuping Huang
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, P. R. China
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20
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21
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Schmid L, Glaser F, Schaer R, Wenger OS. High Triplet Energy Iridium(III) Isocyanoborato Complex for Photochemical Upconversion, Photoredox and Energy Transfer Catalysis. J Am Chem Soc 2022; 144:963-976. [PMID: 34985882 DOI: 10.1021/jacs.1c11667] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cyclometalated Ir(III) complexes are often chosen as catalysts for challenging photoredox and triplet-triplet-energy-transfer (TTET) catalyzed reactions, and they are of interest for upconversion into the ultraviolet spectral range. However, the triplet energies of commonly employed Ir(III) photosensitizers are typically limited to values around 2.5-2.75 eV. Here, we report on a new Ir(III) luminophore, with an unusually high triplet energy near 3.0 eV owing to the modification of a previously reported Ir(III) complex with isocyanoborato ligands. Compared to a nonborylated cyanido precursor complex, the introduction of B(C6F5)3 units in the second coordination sphere results in substantially improved photophysical properties, in particular a high luminescence quantum yield (0.87) and a long excited-state lifetime (13.0 μs), in addition to the high triplet energy. These favorable properties (including good long-term photostability) facilitate exceptionally challenging organic triplet photoreactions and (sensitized) triplet-triplet annihilation upconversion to a fluorescent singlet excited state beyond 4 eV, unusually deep in the ultraviolet region. The new Ir(III) complex photocatalyzes a sigmatropic shift and [2 + 2] cycloaddition reactions that are unattainable with common transition metal-based photosensitizers. In the presence of a sacrificial electron donor, it furthermore is applicable to demanding photoreductions, including dehalogenations, detosylations, and the degradation of a lignin model substrate. Our study demonstrates how rational ligand design of transition-metal complexes (including underexplored second coordination sphere effects) can be used to enhance their photophysical properties and thereby broaden their application potential in solar energy conversion and synthetic photochemistry.
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Affiliation(s)
- Lucius Schmid
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Felix Glaser
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Raoul Schaer
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
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22
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Flores JC, Silbestri GF, de Jesús E. Water-soluble transition-metal complexes with hydrophilic N-heterocyclic carbene ligands for aqueous-phase applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Neshat A, Mastrorilli P, Mousavizadeh Mobarakeh A. Recent Advances in Catalysis Involving Bidentate N-Heterocyclic Carbene Ligands. Molecules 2021; 27:95. [PMID: 35011327 PMCID: PMC8746573 DOI: 10.3390/molecules27010095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/02/2021] [Accepted: 12/13/2021] [Indexed: 11/17/2022] Open
Abstract
Since the discovery of persistent carbenes by the isolation of 1,3-di-l-adamantylimidazol-2-ylidene by Arduengo and coworkers, we witnessed a fast growth in the design and applications of this class of ligands and their metal complexes. Modular synthesis and ease of electronic and steric adjustability made this class of sigma donors highly popular among chemists. While the nature of the metal-carbon bond in transition metal complexes bearing N-heterocyclic carbenes (NHCs) is predominantly considered to be neutral sigma or dative bonds, the strength of the bond is highly dependent on the energy match between the highest occupied molecular orbital (HOMO) of the NHC ligand and that of the metal ion. Because of their versatility, the coordination chemistry of NHC ligands with was explored with almost all transition metal ions. Other than the transition metals, NHCs are also capable of establishing a chemical bond with the main group elements. The advances in the catalytic applications of the NHC ligands linked with a second tether are discussed. For clarity, more frequently targeted catalytic reactions are considered first. Carbon-carbon coupling reactions, transfer hydrogenation of alkenes and carbonyl compounds, ketone hydrosilylation, and chiral catalysis are among highly popular reactions. Areas where the efficacy of the NHC based catalytic systems were explored to a lesser extent include CO2 reduction, C-H borylation, alkyl amination, and hydroamination reactions. Furthermore, the synthesis and applications of transition metal complexes are covered.
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Affiliation(s)
- Abdollah Neshat
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
| | - Piero Mastrorilli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica, Politecnico di Bari, Via Orabona, I-70125 Bari, Italy;
| | - Ali Mousavizadeh Mobarakeh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
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24
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25
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Azpíroz R, Greger I, Oro LA, Passarelli V, Castarlenas R, Pérez‐Torrente JJ. Preparation of Butadienylpyridines by Iridium-NHC-Catalyzed Alkyne Hydroalkenylation and Quinolizine Rearrangement. Chemistry 2021; 27:11868-11878. [PMID: 33998070 PMCID: PMC8453560 DOI: 10.1002/chem.202101414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Indexed: 11/08/2022]
Abstract
Iridium(I) N-heterocyclic carbene complexes of formula Ir(κ2 O,O'-BHetA)(IPr)(η2 -coe) [BHetA=bis-heteroatomic acidato, acetylacetonate or acetate; IPr=1,3-bis(2,6-diisopropylphenyl)imidazolin-2-carbene; coe=cyclooctene] have been prepared by treating Ir(κ2 O,O'-BHetA)(η2 -coe)2 complexes with IPr. These complexes react with 2-vinylpyridine to afford the hydrido-iridium(III)-alkenyl cyclometalated derivatives IrH(κ2 O,O'-BHetA)(κ2 N,C-C7 H6 N)(IPr) through the iridium(I) intermediate Ir(κ2 O,O'-BHetA)(IPr)(η2 -C7 H7 N). The cyclometalated IrH(κ2 O,O'-acac)(κ2 N,C-C7 H6 N)(IPr) complex efficiently catalyzes the hydroalkenylation of aromatic and aliphatic terminal alkynes and enynes with 2-vinylpyridine to afford 2-(4R-butadienyl)pyridines with Z,E configuration as the major reaction products (yield up to 89 %). In addition, unprecedented (Z)-2-butadienyl-5R-pyridine derivatives have been obtained as minor reaction products (yield up to 21 %) from the elusive 1Z,3gem-butadienyl hydroalkenylation products. These compounds undergo a thermal 6π-electrocyclization to afford bicyclic 4H-quinolizine derivatives that, under catalytic reaction conditions, tautomerize to 6H-quinolizine to afford the (Z)-2-(butadienyl)-5R-pyridine by a retro-electrocyclization reaction.
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Affiliation(s)
- Ramón Azpíroz
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Ingo Greger
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
- CLARIANT, Gendorf Site84508BurgkirchenGermany
| | - Luis A. Oro
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Ricardo Castarlenas
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
| | - Jesús J. Pérez‐Torrente
- Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea-ISQCHUniversidad de Zaragoza-CSIC, Facultad de Ciencias50009ZaragozaSpain
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26
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Cuerva C, Cano M, Lodeiro C. Advanced Functional Luminescent Metallomesogens: The Key Role of the Metal Center. Chem Rev 2021; 121:12966-13010. [PMID: 34370446 DOI: 10.1021/acs.chemrev.1c00011] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The use of liquid crystals for the fabrication of displays incorporated in technological devices (TVs, calculators, screens of eBook's, tablets, watches) demonstrates the relevance that these materials have had in our way of living. However, society evolves, and improved devices are looked for as we create a more efficient and safe technology. In this context, metallomesogens can behave as multifunctional materials because they can combine the fluidic state of the mesophases with properties such as photo and electroluminescence, which offers new exciting possibilities in the field of optoelectronics, energy, environment, and even biomedicine. Herein, it has been established the role of the molecular geometry induced by the metal center in metallomesogens to achieve the self-assembly required in the liquid-crystalline mesophase. Likewise, the effect of the coordination environment in metallomesogens has been further analyzed because of its importance to induce mesomorphism. The structural analysis has been combined with an in-depth discussion of the properties of these materials, including their current and potential future applications. This review will provide a solid background to stimulate the development of novel and attractive metallomesogens that allow designing improved optoelectronic and microelectronic components. Additionally, nanoscience and nanotechnology could be used as a tool to approach the design of nanosystems based on luminescent metallomesogens for use in bioimaging or drug delivery.
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Affiliation(s)
- Cristián Cuerva
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
| | - Mercedes Cano
- Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain
| | - Carlos Lodeiro
- BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.,PROTEOMASS Scientific Society, Rua dos Inventores, Madam Parque, Caparica Campus, 2829-516 Caparica, Portugal
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27
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Wu Y, Yang C, Liu J, Zhang M, Liu W, Li W, Wu C, Cheng G, Yang Q, Wei G, Che CM. Phosphorescent [3 + 2 + 1] coordinated Ir(iii) cyano complexes for achieving efficient phosphors and their application in OLED devices. Chem Sci 2021; 12:10165-10178. [PMID: 34377406 PMCID: PMC8336439 DOI: 10.1039/d1sc01426a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/21/2021] [Indexed: 11/29/2022] Open
Abstract
A series of neutral [3 + 2 + 1] coordinated iridium complexes bearing tridentate bis-NHC carbene chelates (2,6-bisimidazolylidene benzene), bidentate chelates (C^N ligands, e.g. derivatives of 2-phenylpridine), and monodentate ions (halides and pseudo-halides, such as Br, I, OCN and CN ions) have been systematically designed and synthesized. X-ray single crystal structure characterization revealed that the nitrogen atom in C^N ligands is located trans to the carbon atom in the benzene ring in tridentate chelates, while the coordinating carbon atom in C^N ligands is located trans to the monodentate ligands. Photophysical studies reveal that the C^N ligands play a vital role in tuning the UV absorption and emission properties, while the tridentate bis-NHC carbene chelates influence the lowest absorption band and emission energy when compared to heteroleptic Ir(ppy)2(acac) [i.e. molar absorptivities at ∼450 nm for ppy-OCN and Ir(ppy)2(acac) are 350 M-1 cm-1 and 1520 M-1 cm-1 and emission maximum peaks are at 465 nm and 515 nm respectively]. Among monodentate ligands that the complexes bear, the group containing the cyanide ligand displays higher emission energy, higher photophysical quantum yields, longer triplet lifetimes and better electrochemical and thermal stabilities than those of cyanate and bromide. Particularly, a blue organic light-emitting diode (OLED) based on dfppy-CN exhibited a maximum external quantum efficiency of 22.94% with CIE coordinates of (0.14, 0.24). Furthermore, a small efficiency roll-off of 5.7% was observed for this device at 1000 cd m-2.
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Affiliation(s)
- Yuan Wu
- PURI Materials 6F, Block A, Jiazhaoye Xindong Kechuang Park, 71st Zone Xindong, Baoan District Shenzhen 518133 China
| | - Chen Yang
- PURI Materials 6F, Block A, Jiazhaoye Xindong Kechuang Park, 71st Zone Xindong, Baoan District Shenzhen 518133 China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Jie Liu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University Xi'an 710049 China
| | - Meng Zhang
- Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen 518055 China
| | - Weiqiang Liu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Wansi Li
- Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen 518055 China
| | - Chengcheng Wu
- PURI Materials 6F, Block A, Jiazhaoye Xindong Kechuang Park, 71st Zone Xindong, Baoan District Shenzhen 518133 China
| | - Gang Cheng
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen 518053 China
| | - Qingdan Yang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology Guangzhou 510006 China
| | - Guodan Wei
- Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen 518055 China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong SAR China
- HKU Shenzhen Institute of Research and Innovation Shenzhen 518053 China
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28
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Huang S, Sheng X, Bian M, Yang Z, Lu Y, Liu W. Synthesis and in vitro anticancer activities of selenium N-heterocyclic carbene compounds. Chem Biol Drug Des 2021; 98:435-444. [PMID: 34051050 DOI: 10.1111/cbdd.13900] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/08/2021] [Accepted: 05/23/2021] [Indexed: 12/24/2022]
Abstract
Fourteen novel selenium N-heterocyclic carbene (Se-NHC) compounds derived from 4,5-diarylimidazole were designed, synthesized, and evaluated as antiproliferative agents. Most of them were more effective toward A2780 ovarian cancer cells than HepG2 hepatocellular carcinoma cells. Among them, the most active compound 2b was about fourfold more active than the positive control ebselen against A2780 cells. In addition, this compound displayed twofold higher cytotoxicity to A2780 cells than to IOSE80 normal ovarian epithelial cells. Further studies revealed that 2b could induce reactive oxygen species production, damage mitochondrial membrane potential, block the cells in the G0/G1 phase, and finally promote A2780 cell apoptosis.
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Affiliation(s)
- Sheng Huang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xinyu Sheng
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Mianli Bian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhibin Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yunlong Lu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wukun Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Pharmacy, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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29
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Bonfiglio A, McCartin C, Carrillo U, Cebrián C, Gros PC, Fournel S, Kichler A, Daniel C, Mauro M. Ir
III
−Pyridoannelated N‐Heterocyclic Carbene Complexes: Potent Theranostic Agents via Mitochondria Targeting. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anna Bonfiglio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67083 Strasbourg France
| | - Conor McCartin
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | | | | | | | - Sylvie Fournel
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | - Antoine Kichler
- 3Bio Team, CAMB UMR7199 CNRS-University of Strasbourg Faculté de Pharmacie 74 route du Rhin 67401 Illkirch cedex France
| | - Chantal Daniel
- Laboratoire de Chimie Quantique Institut de Chimie de Strasbourg UMR7177 Université de Strasbourg-CNRS 4 Rue Blaise Pascal 67000 Strasbourg France
| | - Matteo Mauro
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67083 Strasbourg France
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30
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Teets TS, Wu Y, Kim D. Photophysical Properties and Redox Potentials of Photosensitizers for Organic Photoredox Transformations. Synlett 2021. [DOI: 10.1055/a-1390-9065] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractPhotoredox catalysis has proven to be a powerful tool in synthetic organic chemistry. The rational design of photosensitizers with improved photocatalytic performance constitutes a major advancement in photoredox organic transformations. This review summarizes the fundamental ground-state and excited-state photophysical and electrochemical attributes of molecular photosensitizers, which are important determinants of their photocatalytic reactivity.
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31
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Selective photocatalytic reduction of CO2 to CO mediated by a [FeFe]-hydrogenase model with a 1,2-phenylene S-to-S bridge. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63644-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Biswas R, Ghosh S, Bhaumik SK, Banerjee S. Selective recognition of ATP by multivalent nano-assemblies of bisimidazolium amphiphiles through "turn-on" fluorescence response. Beilstein J Org Chem 2020; 16:2728-2738. [PMID: 33224299 PMCID: PMC7670119 DOI: 10.3762/bjoc.16.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 10/23/2020] [Indexed: 11/23/2022] Open
Abstract
Bisimidazolium receptors, tagged with chromophoric pyrene at one end and linked to an n-alkyl chain at the other, underwent self-assembly in aqueous media depending on the length of the alkyl segment. The amphiphilic derivatives having n-decyl or longer chains, formed nano-assemblies with cyanic-green emission resulting from the stacked pyrene chromophores in the aggregates. The presence of positive surface charges on the multivalent aggregates led to ATP binding which was accompanied by a significant increase in the excimeric emission intensity. This provided a convenient way of monitoring ATP binding in a "turn-on" mode and an efficient detection of ATP was achieved in aqueous buffer and also in buffer containing 150 mM NaCl at physiological pH value. Furthermore, the multivalent aggregates demonstrated a significant selectivity in ATP detection over ADP, AMP and pyrophosphate.
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Affiliation(s)
- Rakesh Biswas
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, India
| | - Surya Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, India
| | - Shubhra Kanti Bhaumik
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, India
| | - Supratim Banerjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, Nadia, India
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33
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Wang Y, Jin J, Shu L, Li T, Lu S, Subarkhan MKM, Chen C, Wang H. New Organometallic Ruthenium(II) Compounds Synergistically Show Cytotoxic, Antimetastatic and Antiangiogenic Activities for the Treatment of Metastatic Cancer. Chemistry 2020; 26:15170-15182. [PMID: 32639591 DOI: 10.1002/chem.202002970] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Indexed: 12/20/2022]
Abstract
In this study, we newly designed and synthesized a small library of ten structurally related C,N-cyclometalated ruthenium(II) complexes containing various pyridine-functionalized NHC ligand and chelating bipyridyl ligands (e.g., 2,2'-bipyridine, 5,5'-dimethyl-2,2'-bipyridine, and 1,10-phenanthroline (phen)). The complexes were well characterized by NMR, electrospray ionization-mass spectrometry, and single-crystal X-ray structure analyses. Among the new ruthenium(II) derivatives, we identified that the complex Ru8 bearing bulky moieties (i.e., phen and pentamethyl benzene) had the most potent cytotoxicity against all tested cancer cell lines, generating dose- and cell line-dependent IC50 values at the range of 3.3-15.0 μm. More significantly, Ru8 not only efficiently inhibited the metastasis process against invasion and migration of tumor cells but also exhibited potent antivascular effects by suppressing HUVEC cells migration and tube formation in vitro and blocking vessel generation in vivo (chicken chorioallantoic membrane model). In a metastatic A2780 tumor xenograft-bearing mouse model, administration of Ru8 outperformed antimetastatic agent NAMI-A and clinically approved cisplatin in terms of antitumor efficacy and inhibition of metastases to other organs. Overall, these data provided compelling evidence that the new cyclometalated ruthenium complex Ru8 is an attractive agent because of synergistically suppressing bulky tumors and metastasized tumor nudes. Therefore, the complex Ru8 deserves further investigations.
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Affiliation(s)
- Yuchen Wang
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China.,Department of Chemical Engineering, Zhejiang University, Hangzhou, 310027, P.R. China
| | - Jiahui Jin
- Xingzhi College, Zhejiang Normal University, Jinhua, 321004, P.R. China
| | - Liwei Shu
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China
| | - Tongyu Li
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China
| | - Siming Lu
- Department of Laboratory Medicine, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China
| | - Mohamed Kasim Mohamed Subarkhan
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China
| | - Chao Chen
- College of Life Sciences, Huzhou University, Huzhou, 313000, P.R. China
| | - Hangxiang Wang
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, School of Medicine, Zhejiang University, Hangzhou, 310003, P.R. China
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34
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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35
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Tham MJR, Babak MV, Ang WH. PlatinER: A Highly Potent Anticancer Platinum(II) Complex that Induces Endoplasmic Reticulum Stress Driven Immunogenic Cell Death. Angew Chem Int Ed Engl 2020; 59:19070-19078. [DOI: 10.1002/anie.202008604] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Max Jing Rui Tham
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
| | - Maria V. Babak
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
- Department of Chemistry City University of Hong Kong 83 Tat Chee Avenue 999077 Hong Kong SAR P. R. China
| | - Wee Han Ang
- NUS Graduate School for Integrative Sciences and Engineering National University of Singapore 21 Lower Kent Ridge Road 119077 Singapore Singapoare
- Department of Chemistry National University of Singapore 3 Science Drive 2 117543 Singapore Singapore
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36
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Hernández‐Juárez M, Sánchez P, López‐Serrano J, Lara P, González‐Herrero P, Rendón N, Álvarez E, Paneque M, Suárez A. Metalated Ir–CNP Complexes Containing Imidazolin‐2‐ylidene and Imidazolidin‐2‐ylidene Donors – Synthesis, Structure, Luminescence, and Metal–Ligand Cooperative Reactivity. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Martín Hernández‐Juárez
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
- Área Académica de Química Centro de Investigaciones Químicas Universidad Autónoma del Estado de Hidalgo (UAEH) Km. 14.5 Carretera Pachuca‐Tulancingo, Ciudad del Conocimiento, C.P. 42184 Mineral de la Reforma Hidalgo Mexico
| | - Práxedes Sánchez
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Joaquín López‐Serrano
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Patricia Lara
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Pablo González‐Herrero
- Departamento de Química Inorgánica Facultad de Química Universidad de Murcia 30071 Murcia Spain
| | - Nuria Rendón
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Margarita Paneque
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
| | - Andrés Suárez
- Instituto de Investigaciones Químicas (IIQ) Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO‐CINQA) CSIC and Universidad de Sevilla 41092 Sevilla Spain
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37
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Bonfiglio A, Mauro M. Phosphorescent
Tris
‐Bidentate Ir
III
Complexes with N‐Heterocyclic Carbene Scaffolds: Structural Diversity and Optical Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000509] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anna Bonfiglio
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67000 Strasbourg France
| | - Matteo Mauro
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR7504 Université de Strasbourg & CNRS 23 rue du Loess 67000 Strasbourg France
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38
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Hu X, Wei Z, Tang M, Long Y, Zheng H. Reducing background absorbance via a double-lock strategy for detection of alkaline phosphatase and α-fetoprotein. Mikrochim Acta 2020; 187:489. [PMID: 32766932 DOI: 10.1007/s00604-020-04468-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 07/27/2020] [Indexed: 11/25/2022]
Abstract
Lowering the background signal for more sensitive analysis of determinands is as important as amplifying the target signal. The photoinduced oxidase of fluorescein has been reported, which can catalyze the oxidization of common substrates in a few minutes. As a metaphor for locks and keys, we designed double locks confining the activity of fluorescein to reduce the background absorbance during colorimetric detection. The first lock inhibits the main activity of fluorescein by phosphating. The second lock almost completely deactivates fluorescein by forming coordination nanoparticles (CNPs) via the self-assembly of cerium chloride and fluorescein diphosphate (FDP). The Ce-FDP CNPs are characterized by scanning electron microscope (SEM), dynamic light scattering (DLS), Fourier transform infrared spectrometer (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and energy dispersive spectrum (EDS), which show electrostatic formation and amorphous character in the morphology. Alkaline phosphatase (ALP), the key to release fluorescein, can destroy Ce-FDP CNPs along with decomposing FDP by degrading phosphate groups. Therefore, a novel colorimetric strategy for sensitive detection of ALP is established. The detection of α-fetoprotein (AFP) is further succeeded by labeling AFP antibody with ALP. By dramatically reducing the background absorbance, the detection limits of ALP and AFP are as low as 0.014 mU/mL and 0.023 ng/mL, respectively. This convenient, brief, sensitive assay provides a promising prospect for clinical diagnosis. Graphical abstract.
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Affiliation(s)
- Xuemei Hu
- College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, 400715, China
| | - Zixuan Wei
- College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, 400715, China
| | - Menghuan Tang
- College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, 400715, China
| | - Yijuan Long
- College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, 400715, China
| | - Huzhi Zheng
- College of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, 400715, China.
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39
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Marker SC, King AP, Granja S, Vaughn B, Woods JJ, Boros E, Wilson JJ. Exploring the In Vivo and In Vitro Anticancer Activity of Rhenium Isonitrile Complexes. Inorg Chem 2020; 59:10285-10303. [PMID: 32633531 PMCID: PMC8114230 DOI: 10.1021/acs.inorgchem.0c01442] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The established platinum-based drugs form covalent DNA adducts to elicit their cytotoxic response. Although they are widely employed, these agents cause toxic side-effects and are susceptible to cancer-resistance mechanisms. To overcome these limitations, alternative metal complexes containing the rhenium(I) tricarbonyl core have been explored as anticancer agents. Based on a previous study ( Chem. Eur. J. 2019, 25, 9206), a series of highly active tricarbonyl rhenium isonitrile polypyridyl (TRIP) complexes of the general formula fac-[Re(CO)3(NN)(ICN)]+, where NN is a chelating diimine and ICN is an isonitrile ligand, that induce endoplasmic reticulum (ER) stress via activation of the unfolded protein response (UPR) pathway are investigated. A total of 11 of these TRIP complexes were synthesized, modifying both the equatorial polypyridyl and axial isonitrile ligands. Complexes with more electron-donating equatorial ligands were found to have greater anticancer activity, whereas the axial ICN ligands had a smaller effect on their overall potency. All 11 TRIP derivatives trigger a similar phenotype that is characterized by their abilities to induce ER stress and activate the UPR. Lastly, we explored the in vivo efficacy of one of the most potent complexes, fac-[Re(CO)3(dmphen)(ptolICN)]+ (TRIP-1a), where dmphen = 2,9-dimethyl-1,10-phenanthroline and ptolICN = para-tolyl isonitrile, in mice. The 99mTc congener of TRIP-1a was synthesized, and its biodistribution in BALB/c mice was investigated in comparison to the parent Re complex. The results illustrate that both complexes have similar biodistribution patterns, suggesting that 99mTc analogues of these TRIP complexes can be used as diagnostic partner agents. The in vivo antitumor activity of TRIP-1a was then investigated in NSG mice bearing A2780 ovarian cancer xenografts. When administered at a dose of 20 mg/kg twice weekly, this complex was able to inhibit tumor growth and prolong mouse survival by 150% compared to the vehicle control cohort.
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Affiliation(s)
- Sierra C. Marker
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - A. Paden King
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Samantha Granja
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Brett Vaughn
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Joshua J. Woods
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
- Robert F. Smith School for Chemical and Biomolecular Engineering, Cornell, University, Ithaca, New York 14853, United States
| | - Eszter Boros
- Department of Chemistry, Stony Brook University, Stony Brook, New York, 11794, United States
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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40
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Pinter P, Soellner J, Strassner T. Heteroleptic Cyclometalated NHC Iridium(III) complex with a bulky acetylacetonate: Photophysics of an unexplored class of compounds. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Seth SK, Purkayastha P. Unusually Large Singlet Oxygen (
1
O
2
) Production by Very Weakly Emissive Pyrene‐Functionalized Iridium(III) Complex: Interplay between Excited
3
ILCT/
3
IL and
3
MLCT States. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sourav Kanti Seth
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Mohanpur WB India
| | - Pradipta Purkayastha
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata 741246 Mohanpur WB India
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42
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Mitochondria-targeted phosphorescent cyclometalated iridium(III) complexes: synthesis, characterization, and anticancer properties. J Biol Inorg Chem 2020; 25:597-607. [PMID: 32232583 DOI: 10.1007/s00775-020-01783-2] [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: 01/31/2020] [Accepted: 03/25/2020] [Indexed: 01/09/2023]
Abstract
Cyclometalated iridium(III) complexes represent a promising approach to developing new anticancer metallodrugs. In this work, three phosphorescent cyclometalated iridium(III) complexes Ir1-Ir3 have been explored as mitochondria-targeted anticancer agents. All three complexes display higher antiproliferative activity than cisplatin against the cancer cells screened, and with the IC50 values ranging from 0.23 to 5.6 μM. Colocalization studies showed that these complexes are mainly localized in the mitochondria. Mechanism studies show that these complexes exert their anticancer efficacy through initiating a series of events related to mitochondrial dysfunction, including depolarization of mitochondrial membrane potential (MMP), elevation of intracellular reactive oxygen species (ROS) levels, and induction of apoptosis. Mitochondria-targted cyclometalated iridium complexes induce apoptosis through depolarized mitochondria, elevation of intracellular ROS and activated caspase.
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43
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Li D, Liang C, Jiang Z, Zhang J, Zhuo WT, Zou FY, Wang WP, Gao GL, Song J. Visible-Light-Promoted C2 Selective Arylation of Quinoline and Pyridine N-Oxides with Diaryliodonium Tetrafluoroborate. J Org Chem 2020; 85:2733-2742. [PMID: 31906619 DOI: 10.1021/acs.joc.9b02933] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A protocol of visible-light-promoted C2 selective arylation of quinoline and pyridine N-oxides, with diaryliodonium tetrafluoroborate as an arylation reagent, using eosin Y as a photocatalyst for the construction of N-heterobiaryls was presented. This methodology provided an efficient way for the synthesis of 2-aryl-substituted quinoline and pyridine N-oxides. This strategy has the following advantages: specific regioselectivity, simple operation, good functional group tolerance, and high to moderate yields under mild conditions.
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Affiliation(s)
- Dazhi Li
- School of Life Science and Technology , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Ce Liang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Zaixing Jiang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Junzheng Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Wang-Tao Zhuo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Fan-Yue Zou
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Wan-Peng Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Guo-Lin Gao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
| | - Jinzhu Song
- School of Life Science and Technology , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , China
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45
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King AP, Wilson JJ. Endoplasmic reticulum stress: an arising target for metal-based anticancer agents. Chem Soc Rev 2020; 49:8113-8136. [DOI: 10.1039/d0cs00259c] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Metal anticancer agents are rapidly emerging as selective, potent therapeutics that exhibit anticancer activity by inducing endoplasmic reticulum stress.
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Affiliation(s)
- A. Paden King
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
| | - Justin J. Wilson
- Department of Chemistry and Chemical Biology
- Cornell University
- Ithaca
- USA
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46
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Anti-cancer gold, platinum and iridium compounds with porphyrin and/or N-heterocyclic carbene ligand(s). Med Chem 2020. [DOI: 10.1016/bs.adioch.2019.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Li Y, Wang KN, He L, Ji LN, Mao ZW. Synthesis, photophysical and anticancer properties of mitochondria-targeted phosphorescent cyclometalated iridium(III) N-heterocyclic carbene complexes. J Inorg Biochem 2019; 205:110976. [PMID: 31926377 DOI: 10.1016/j.jinorgbio.2019.110976] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/12/2019] [Accepted: 12/24/2019] [Indexed: 11/27/2022]
Abstract
Metal N-Heterocyclic carbene (NHC) complexes are expected to be new opportunities for the development of anticancer metallodrugs. In this work, two near-infrared (NIR) emitting iridium(III)-NHC complexes Ir1 and Ir2 have been explored as mitochondria-targeted anticancer and photodynamic agents. These complexes are more cytotoxic than cisplatin against the cancer cells screened, and display higher cytotoxicity in the presence of 450 nm and 630 nm LED light. Colocalization and quantitative studies indicated that these complexes could specially localize to mitochondria. Mechanism studies show that these complexes increase intracellular reactive oxygen species (ROS) level, reduce mitochondrial membrane potential (MMP) and induce some degree of early apoptosis. Further studies found that Ir1could induce mitophagy at dark and necrocytosis under the irradiation of 630 nm LED light. The in vitro and in vivo photoxicity studies revealed that Ir1 is a promising photodynamic therapy (PDT) agent and could significantly inhibit tumor growth.
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Affiliation(s)
- Yi Li
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Kang-Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Liang He
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Liang-Nian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, PR China.
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48
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49
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Jing DK, Xu HR, Yang XH, Yang RL, Liu Z, Dou SB, Mo ZR, Li GN, Niu ZG. New yellow/orange-emitting heteroleptic iridium(III) complexes with 5,7-difluoro-2-phenylbenzothiazole ligand. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819889014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Two new phosphorescent iridium(III) complexes, (dfbt)2Ir(pic) and (dfbt)2Ir(acac) (dfbt = 5,7-difluoro-2-phenylbenzothiazole, pic = picolinate, acac = acetylacetonate), have been synthesized and characterized. Upon photoexcitation, both complexes exhibit strong yellow–orange emission in CH2Cl2 solution at room temperature with absolute quantum yields up to 99.0% and emission lifetimes up to 1.23 μs. The spectroscopic property has been calculated by density functional theory and time-dependent density functional theory, thus suggesting that the lowest absorption and the emission originate from the metal-to-ligand charge transfer/ligand-centered transition.
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Affiliation(s)
- De-Kun Jing
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Han-Ru Xu
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Xiao-Han Yang
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Rui-Lian Yang
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Zhuo Liu
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Shao-Bin Dou
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Zheng-Rong Mo
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Gao-Nan Li
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
| | - Zhi-Gang Niu
- College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, China
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Thongpaen J, Manguin R, Dorcet V, Vives T, Duhayon C, Mauduit M, Baslé O. Visible Light Induced Rhodium(I)‐Catalyzed C−H Borylation. Angew Chem Int Ed Engl 2019; 58:15244-15248. [DOI: 10.1002/anie.201905924] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/12/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Jompol Thongpaen
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRSUniversité de Toulouse, CNRS Toulouse France
| | - Romane Manguin
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Thomas Vives
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | | | - Marc Mauduit
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
| | - Olivier Baslé
- Univ RennesEcole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
- LCC-CNRSUniversité de Toulouse, CNRS Toulouse France
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