1
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Zahn C, Pastore M, Lustres JLP, Gros PC, Haacke S, Heyne K. Femtosecond Infrared Spectroscopy Resolving the Multiplicity of High-Spin Crossover States in Transition Metal Iron Complexes. J Am Chem Soc 2024; 146:9347-9355. [PMID: 38520392 PMCID: PMC10995999 DOI: 10.1021/jacs.4c01637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
Tuning the photophysical properties of iron-based transition-metal complexes is crucial for their employment as photosensitizers in solar energy conversion. For the optimization of these new complexes, a detailed understanding of the excited-state deactivation paths is necessary. Here, we report femtosecond transient mid-IR spectroscopy data on a recently developed octahedral ligand-field enhancing [Fe(dqp)2]2+ (C1) complex with dqp = 2,6-diquinolylpyridine and prototypical [Fe(bpy)3]2+ (C0). By combining mid-IR spectroscopy with quantum chemical DFT calculations, we propose a method for disentangling the 5Q1 and 3T1 multiplicities of the long-lived metal-centered (MC) states, applicable to a variety of metal-organic iron complexes. Our results for C0 align well with the established assignment toward the 5Q1, validating our approach. For C1, we find that deactivation of the initially excited metal-to-ligand charge-transfer state leads to a population of a long-lived MC 5Q1 state. Analysis of transient changes in the mid-IR shows an ultrafast sub 200 fs rearrangement of ligand geometry for both complexes, accompanying the MLCT → MC deactivation. This confirms that the flexibility in the ligand sphere supports the stabilization of high spin states and plays a crucial role in the MLCT lifetime of metal-organic iron complexes.
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Affiliation(s)
- Clark Zahn
- Department
of Physics, Free University Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | | | - J. Luis Perez Lustres
- Department
of Physics, Free University Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | | | - Stefan Haacke
- Université
de Strasbourg—CNRS, IPCMS, 67034 Strasbourg, France
| | - Karsten Heyne
- Department
of Physics, Free University Berlin, Arnimallee 14, D-14195 Berlin, Germany
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2
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Hagiwara R, Nishimura S, Okeyoshi K. Precise design of copolymer-conjugated nanocatalysts for active electron transfer. Chem Commun (Camb) 2024; 60:280-283. [PMID: 38088198 DOI: 10.1039/d3cc05242g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
A copolymer-conjugated nanocatalytic system has been designed for active electron transfer. To enhance photoinduced H2 generation, we precisely synthesize ternary random copolymers capable of transferring electrons through phase transitions, extending and shrinking in response to viologen's redox changes within 2 nm distance from the surface of the catalytic nanoparticle.
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Affiliation(s)
- Reina Hagiwara
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
| | - Shun Nishimura
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
| | - Kosuke Okeyoshi
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan.
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3
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Hammouda MM, Elattar KM, Rashed MM, Osman AMA. Synthesis, biological activities, and future perspectives of steroidal monocyclic pyridines. RSC Med Chem 2023; 14:1934-1972. [PMID: 37859725 PMCID: PMC10583814 DOI: 10.1039/d3md00411b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 10/21/2023] Open
Abstract
Steroidal pyridines are a class of compounds that have been the subject of extensive research in recent years due to their potential biological activities. The introduction of a pyridine ring into the steroid skeleton can significantly alter the chemical and biological properties of the compound, making it more potent and/or selective for a particular target. Different synthetic methods have been developed for the preparation of steroidal pyridines. This review provides an overview of the synthesis, biological activities, and future perspectives of steroidal monocyclic dihydropyridines, tetrahydropyridines, and pyridines from 2005 to the present. The different synthetic methods that have been developed for the preparation of these steroids are discussed, as well as the proposed mechanisms and the biological activities that have been reported. Finally, the potential of steroidal monocyclic pyridines for the development of new drugs is discussed. This review is intended to provide a comprehensive overview of the field of steroidal monocyclic pyridines for researchers and scientists who are interested in this area of research. It is also hoped that this review will stimulate further research into the synthesis and biological activities of steroidal pyridines to develop new and improved drugs for the treatment of diseases.
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Affiliation(s)
- Mohamed M Hammouda
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University Al-Kharj 11942 Saudi Arabia
- Chemistry Department, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt
| | - Khaled M Elattar
- Unit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt +201010655354
| | - Marwa M Rashed
- Toxicology Department, Mansoura Hospital, Faculty of Medicine, Mansoura University El-Gomhoria Street Mansoura 35516 Egypt
| | - Amany M A Osman
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University Al-Kharj 11942 Saudi Arabia
- Chemistry Department, Faculty of Science, Menoufia University Shebin El-Koam Egypt
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4
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Rana P, Saini KM, Kaushik B, Solanki K, Dixit R, Sharma RK. Unleashing the photocatalytic potential of a noble-metal-free heteroleptic copper complex-based nanomaterial for an enhanced aza-Henry reaction. NANOSCALE 2023; 15:14007-14017. [PMID: 37539685 DOI: 10.1039/d3nr01915b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
In this work, we fabricated a versatile and noble metal free copper-based heterogeneous photocatalyst, representing a green shift away from precious group metals such as Ir, Ru, Pt, which have been widely utilized as photocatalysts. The successfully synthesized and characterized copper photocatalyst was employed to establish a cross dehydrogenative coupling via C-H activation between tertiary amines and carbon nucleophiles. The highly efficient copper-based photocatalyst was characterized by numerous physico-chemical techniques, which confirmed its successful formation as well as its high activity. Inductively coupled plasma (ICP-OES) analysis revealed that the composite Cu@Xantphos@ASMNPs had a very high loading of 0.423 mmol g-1 of copper. The magnetic Cu@Xantphos@ASMNPs were utilized as a potential heterogeneous photocatalyst for the very facile and regioselective conversion of aryl tetrahydroqinoline to the respective nitroalkyl aryl tetrahydroisoquinoline in high yield using air as an oxidant and methanol as a green solvent with irradiation with visible light under mild reaction conditions. Additionally, the catalyst shows exceptional chemical stability and reusability without any agglomeration even after several cycles of use, which is one of the key features of this material, rendering it a potential candidate from economic and environmental perspectives.
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Affiliation(s)
- Pooja Rana
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
| | - Kapil Mohan Saini
- Kalindi College, University of Delhi, New Delhi, Delhi-110008, India
| | - Bhawna Kaushik
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
- Acharya Narendra Dev College, University of Delhi, New Delhi, Delhi-110019, India
| | - Kanika Solanki
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
- Shyamlal College, University of Delhi, New Delhi, Delhi-1100032, India
| | - Ranjana Dixit
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
- Ramjas College, University of Delhi, New Delhi-110007, India
| | - Rakesh K Sharma
- Green Chemistry Network Centre, Department of Chemistry, University of Delhi, New Delhi-110007, India.
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5
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Matsumoto W, Naito M, Danjo H. Preparation of spiroborate supramolecular and peapod polymers containing a photoluminescent ruthenium(ii) complex. RSC Adv 2023; 13:25002-25006. [PMID: 37622015 PMCID: PMC10445220 DOI: 10.1039/d3ra03940d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
The immobilization of functional metal complexes onto polymer supports remains one of the most important research areas. In this study, we prepared spiroborate supramolecular and peapod polymers containing a cationic photoluminescent ruthenium(ii) complex. The supramolecular polymer was obtained by mixing spiroborate cyclic trimer bearing homoallyl group and a ruthenium(ii) tris(bipyridyl) complex, and was further converted into the corresponding peapod polymer by olefin metathesis polymerization. The structure of these polymers was determined by 1H NMR, dynamic light scattering, inductively coupled plasma-atomic emission spectroscopy, energy dispersive X-ray analyses, and atomic force microscopy. The absorption and emission behaviors of the ruthenium(ii) complex were almost the same for the free form and the supramolecular polymer in the mixed solvent of N,N-dimethylformamide and chloroform, although the emission intensity decreased when the chloroform portion was increased. On the other hand, the hypsochromism was observed upon the emission of the ruthenium(ii) complex in the peapod polymer, probably due to the rigidochromic effect of the tight encapsulation by the peapod structure.
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Affiliation(s)
- Wako Matsumoto
- Graduate School of Natural Science, Konan University 8-9-1 Okamoto, Higashinada Kobe 658-8501 Japan
| | - Muneyuki Naito
- Department of Chemistry, Konan University 8-9-1 Okamoto, Higashinada Kobe 658-8501 Japan
| | - Hiroshi Danjo
- Department of Chemistry, Konan University 8-9-1 Okamoto, Higashinada Kobe 658-8501 Japan
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6
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Verma V, Schafer LL. One-Pot Sequential Hydroamination Protocol for N-Heterocycle Synthesis: One Method To Access Five Different Classes of Tri-Substituted Pyridines. J Org Chem 2023; 88:1378-1384. [PMID: 36634317 DOI: 10.1021/acs.joc.2c02155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Tri-substituted pyridines are important scaffolds that can be found in a plethora of commercially available drugs. A one-pot general method for the selective synthesis of less explored/challenging patterns of tri-substituted pyridines is described. Hydroamination of alkynes with commercially available N-triphenylsilylamine generates N-silylenamines. These in situ generated N-silylenamines, upon reaction with α,β-unsaturated carbonyl compounds and subsequent oxidation, furnish 25 examples of selectively substituted 2,4,5-, 2,3,4-, 3,4,5-, 2,3,5-, and 2,3,6-trisubstituted pyridines in up to 78% yield. The reaction features high functional group compatibility providing an expeditious and general approach for the assembly of selectively substituted tri-substituted pyridine derivatives. The robustness and practicality of the reaction have been demonstrated in a gram-scale reaction.
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Affiliation(s)
- Vani Verma
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British ColumbiaV6T 1Z1, Canada
| | - Laurel L Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British ColumbiaV6T 1Z1, Canada
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7
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Abstract
Homogeneous electrocatalysis has been well studied over the past several decades for the conversion of small molecules to useful products for green energy applications or as chemical feedstocks. However, in order for these catalyst systems to be used in industrial applications, their activity and stability must be improved. In naturally occurring enzymes, redox equivalents (electrons, often in a concerted manner with protons) are delivered to enzyme active sites by small molecules known as redox mediators (RMs). Inspired by this, co-electrocatalytic systems with homogeneous catalysts and RMs have been developed for the conversion of alcohols, nitrogen, unsaturated organic substrates, oxygen, and carbon dioxide. In these systems, the RMs have been shown to both increase the activity of the catalyst and shift selectivity to more desired products by altering catalytic cycles and/or avoiding high-energy intermediates. However, the area is currently underdeveloped and requires additional fundamental advancements in order to become a more general strategy. Here, we summarize the recent examples of homogeneous co-electrocatalysis and discuss possible future directions for the field.
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Affiliation(s)
- Amelia G Reid
- Department of Chemistry, University of Virginia, P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
| | - Charles W Machan
- Department of Chemistry, University of Virginia, P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
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8
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Luo C, Cai M, Zhao R, Huang B. An efficient and practical synthesis of functionalized pyridines via recyclable copper-catalyzed three-component tandem cyclization. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2022.2156296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Chengkai Luo
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Mingzhong Cai
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Ruonan Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
| | - Bin Huang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, China
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9
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Zhang Y, Rana R, Liu P, Zabinyakov N, Nitz M, Winnik MA. Tellurium-containing polymer for mass cytometry. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Pasha SS, Banerjee A, Sreedharan S, Singh S, Kandoth N, Vallis KA, Pal SK, Pramanik SK, Das A. Ultrasensitive Reagent for Ratiometric Detection and Detoxification of iAsIII in Water and Mitochondria. Inorg Chem 2022; 61:13115-13124. [PMID: 35950896 DOI: 10.1021/acs.inorgchem.2c01761] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Toxicity induced by inorganic arsenic as AsO33- (iAsIII) is of global concern. Reliable detection of the maximum allowed contaminant level for arsenic in drinking water and in the cellular system remains a challenge for the water quality management and assessment of toxicity in the cellular milieu, respectively. A new Ir(III)-based phosphorescent molecule (AS-1; λExt = 415 nm and λEms = 600 nm, Φ = 0.3) is synthesized for the selective detection of iAsIII in an aqueous solution with a ratiometric luminescence response even in the presence of iAsV and all other common inorganic cations and anions. The relatively higher affinity of the thioimidazole ligand (HPBT) toward iAsIII led to the formation of a fluorescent molecule iAsV-HPBT (λExt = 415 nm and λEms = 466 nm, Φ = 0.28) for the reaction of iAsIII and AS-1. An improved limit of quantitation (LOQ) down to 0.2 ppb is achieved when AS-1 is used in the CTAB micellar system. Presumably, the cationic surfactants favor the localization of AS-1@CTABMicelle in mitochondria of MCF7 cells, and this is confirmed from the images of the confocal laser fluorescence scanning microscopic studies. Importantly, cell viability assay studies confirm that AS-1@CTABMicelle induces dose-dependent detoxification of iAsIII in live cells. Further, luminescence responses at 466 nm could be utilized for developing a hand-held device for the in-field application. Such a reagent that allows for ratiometric detection of iAsIII with LOQ of 2.6 nM (0.5 ppb) in water, as well as helps in visualizing its distribution in mitochondria with a detoxifying effect, is rather unique in contemporary literature.
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Affiliation(s)
- Sheik Saleem Pasha
- Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India
| | - Amrita Banerjee
- Technical Research Centre, Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal 700106, India
| | - Sreejesh Sreedharan
- Oxford Institute for Radiation Oncology, University of Oxford, Oxford OX3 7DQ, U.K.,Human Sciences Research Centre, University of Derby, Derby DE221GB, U.K
| | - Soumendra Singh
- Technical Research Centre, Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal 700106, India
| | - Noufal Kandoth
- Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Katherine A Vallis
- Oxford Institute for Radiation Oncology, University of Oxford, Oxford OX3 7DQ, U.K
| | - Samir Kumar Pal
- Technical Research Centre, Department of Chemical, Biological & Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata, West Bengal 700106, India
| | - Sumit Kumar Pramanik
- Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Amitava Das
- Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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11
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Kurpik G, Walczak A, Gołdyn M, Harrowfield J, Stefankiewicz AR. Pd(II) Complexes with Pyridine Ligands: Substituent Effects on the NMR Data, Crystal Structures, and Catalytic Activity. Inorg Chem 2022; 61:14019-14029. [PMID: 35985051 PMCID: PMC9455277 DOI: 10.1021/acs.inorgchem.2c01996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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A wide range of functionalized pyridine ligands have
been employed
to synthesize a variety of Pd(II) complexes of the general formulas
[PdL4](NO3)2 and [PdL2Y2], where L = 4-X-py
and Y = Cl– or NO3–. Their structures have been unambiguously established via analytical
and spectroscopic methods in solution (NMR spectroscopy and mass spectrometry)
as well as in the solid state (X-ray diffraction). This in-depth characterization
has shown that the functionalization of ligand molecules with groups
of either electron-withdrawing or -donating nature (EWG and EDG) results
in significant changes in the physicochemical properties of the desired
coordination compounds. Downfield shifts of signals in the 1H NMR spectra were observed upon coordination within and across the
complex families, clearly indicating the relationship between NMR
chemical shifts and the ligand basicity as estimated from pKa values. A detailed crystallographic study
has revealed the operation of a variety of weak interactions, which
may be factors explaining aspects of the solution chemistry of the
complexes. The Pd(II) complexes have been found to be efficient and
versatile precatalysts in Suzuki–Miyaura and Heck cross-coupling
reactions within a scope of structurally distinct substrates, and
factors have been identified that have contributed to efficiency improvement
in both processes. A wide range
of pyridine derivatives have been employed
to synthesize a variety of di- and tetrasubstituted Pd(II) complexes
of square-planar geometry. This in-depth characterization has shown
that the functionalization of ligand molecules with groups of either
electron-withdrawing or -donating nature results in significant changes
in the physicochemical properties of the coordination compounds. Moreover,
the complexes have been found to be of practical utility as efficient
precatalysts for both Suzuki−Miyaura and Heck cross-coupling
reactions.
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Affiliation(s)
- Gracjan Kurpik
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.,Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, Poznań 61-614, Poland
| | - Anna Walczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.,Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, Poznań 61-614, Poland
| | - Mateusz Gołdyn
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Jack Harrowfield
- Institut de Science et d'Ingénierie Supramoléculaires, Université de Strasbourg, 8 allée Gaspard Monge, Strasbourg 67083, France
| | - Artur R Stefankiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.,Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, Poznań 61-614, Poland
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12
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Guven N, Yucel B, Sultanova H, Camurlu P. Multichromic metallopolymers of poly(2,5-dithienylpyrrole)s derived through tethering of ruthenium(II) bipiridyl complex. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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13
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One-pot Hantzsch synthesis of unsymmetrical substituted pyridines via condensation of 1, 3-dicarbonyl compounds with DMF and 1, 1-dichloro-2-nitroethene. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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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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15
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Gubarev AS, Lezov AA, Mikusheva NG, Perevyazko I, Senchukova AS, Lezova AA, Podsevalnikova AN, Rogozhin VB, Enke M, Winter A, Schubert US, Tsvetkov NV. Hydrodynamic Characteristics and Conformational Parameters of Ferrocene-Terpyridine-Based Polymers. Polymers (Basel) 2022; 14:polym14091776. [PMID: 35566943 PMCID: PMC9104623 DOI: 10.3390/polym14091776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/04/2022] [Accepted: 04/19/2022] [Indexed: 02/04/2023] Open
Abstract
Nowadays, the study of metallopolymers is one of the fastest growing areas of polymer science. Metallopolymers have great potential for application in multiple technological and various biomedical processes. The macromolecules with the possibility of varying the number and type of metal ions along the entire length of the polymer chain are of particular interest. In this regard, this study presents results on two successfully synthesized homopolymers, random and block copolymers based on PMMA, containing ferrocene and terpyridine moieties in the side chain. Different architectures of copolymers may attribute interesting properties when creating complexes with various metal ions. A detailed hydrodynamic study of these structures was carried out, the consistency of hydrodynamic data was established using the concept of a hydrodynamic invariant, the absolute values of the molar masses of the studied objects were calculated, and the conformational parameters of macromolecules were determined. Using the Fixman-Stockmayer theory, the equilibrium rigidities of the studied systems were calculated and the relationship between the chemical structure and conformational characteristics was established. The studied copolymers can be attributed to the class of flexible-chain macromolecules. An increase in the equilibrium rigidity value with an increase of the side chain, which is characteristic of comb-shaped polymers, was determined.
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Affiliation(s)
- Alexander S. Gubarev
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexey A. Lezov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Nina G. Mikusheva
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Igor Perevyazko
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna S. Senchukova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Alexandra A. Lezova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Anna N. Podsevalnikova
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Vyacheslav B. Rogozhin
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
| | - Marcel Enke
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; (M.E.); (A.W.)
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Correspondence: (U.S.S.); (N.V.T.)
| | - Nikolai V. Tsvetkov
- Department of Molecular Biophysics and Polymer Physics, St. Petersburg University, Universitetskaya Nab. 7/9, 199034 Saint-Petersburg, Russia; (A.S.G.); (A.A.L.); (N.G.M.); (I.P.); (A.S.S.); (A.A.L.); (A.N.P.); (V.B.R.)
- Correspondence: (U.S.S.); (N.V.T.)
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16
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Dallerba E, Hartnell D, Hackett MJ, Massi M, Lowe AB. Well‐defined Tetrazole‐functional Copolymers as Macromolecular Ligands for Luminescent Ir(III) and Re(I) Metal Species: Synthesis, Photophysical Properties and Application in Bioimaging. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elena Dallerba
- School of Molecular and Life Sciences Curtin University Bentley Perth WA 6102 Australia
| | - David Hartnell
- School of Molecular and Life Sciences Curtin University Bentley Perth WA 6102 Australia
- Curtin Health Innovation Research Institute (CHIRI) Curtin University Bentley Perth WA 6102 Australia
| | - Mark J. Hackett
- School of Molecular and Life Sciences Curtin University Bentley Perth WA 6102 Australia
- Curtin Health Innovation Research Institute (CHIRI) Curtin University Bentley Perth WA 6102 Australia
| | - Massimiliano Massi
- School of Molecular and Life Sciences Curtin University Bentley Perth WA 6102 Australia
| | - Andrew B. Lowe
- School of Molecular and Life Sciences Curtin University Bentley Perth WA 6102 Australia
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17
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18
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Liu Y, Li Q, Gu M, Lu D, Xiong X, Zhang Z, Pan Y, Liao Y, Ding Q, Gong W, Chen DS, Guan M, Wu J, Tian Z, Deng H, Gu L, Hong X, Xiao Y. A Second Near-Infrared Ru(II) Polypyridyl Complex for Synergistic Chemo-Photothermal Therapy. J Med Chem 2022; 65:2225-2237. [PMID: 34994554 DOI: 10.1021/acs.jmedchem.1c01736] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The clinical success of cisplatin ushered in a new era of the application of metallodrugs. When it comes to practice, however, drug resistance, tumor recurrence, and drug systemic toxicity make it implausible to completely heal the patients. Herein, we successfully transform an electron acceptor [1, 2, 5]thiadiazolo[3,4-g]quinoxaline into a novel second near-infrared (NIR-II) fluorophore H7. After PEGylation and chelation, HL-PEG2k exhibits a wavelength bathochromic shift, enhanced photothermal conversion efficiency (41.77%), and an antineoplastic effect against glioma. Its potential for in vivo tumor tracking and image-guided chemo-photothermal therapy is explored. High levels of uptake and high-resolution NIR-II imaging results are thereafter obtained. The hyperthermia effect could disrupt the lysosomal membranes, which in turn aggravate the mitochondria dysfunction, arrest the cell cycle in the G2 phase, and finally lead to cancer cell apoptosis. HL-PEG2k displays a superior biocompatibility and thus can be a potential theranostic platform to combat the growth and recurrence of tumors.
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Affiliation(s)
- Yishen Liu
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, Tibet University, Lhasa 850000, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Qianqian Li
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China
| | - Meijia Gu
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China
| | - Disheng Lu
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, Tibet University, Lhasa 850000, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China
| | - Zhiyun Zhang
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Yanna Pan
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Yuqin Liao
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Qihang Ding
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Wanxia Gong
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Dean Shuailin Chen
- Department of Chemistry, Pennsylvania State University, Philadelphia, Pennsylvania 19104, United States
| | - Mengting Guan
- Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Junzhu Wu
- Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Zhiquan Tian
- College of Science, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, Tibet University, Lhasa 850000, China
| | - Hai Deng
- Department of Chemistry, University of Aberdeen, Aberdeen AB24 3FX, U.K
| | - Lijuan Gu
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China
| | - Xuechuan Hong
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,College of Science, Laboratory of Extreme Environmental Biological Resources and Adaptive Evolution, Research Center for Ecology, Tibet University, Lhasa 850000, China.,Center for Experimental Basic Medical Education, Hubei Provincial Key Laboratory of Developmentally Originated Disease and Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), Wuhan 430071, China
| | - Yuling Xiao
- Department of Neurosurgery, Central Laboratory, Renmin Hospital of Wuhan University, State Key Laboratory of Virology, Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China.,Shenzhen Institute of Wuhan University, Shenzhen 518057, China
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19
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Reid AG, Moreno JJ, Hooe SL, Baugh KR, Thomas IH, Dickie DA, Machan CW. Inverse Potential Scaling in Co-Electrocatalytic Activity for CO 2 Reduction Through Redox Mediator Tuning and Catalyst Design. Chem Sci 2022; 13:9595-9606. [PMID: 36091894 PMCID: PMC9400620 DOI: 10.1039/d2sc03258a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/21/2022] [Indexed: 11/21/2022] Open
Abstract
Electrocatalytic CO2 reduction is an attractive strategy to mitigate the continuous rise in atmospheric CO2 concentrations and generate value-added chemical products. A possible strategy to increase the activity of molecular...
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Affiliation(s)
- Amelia G Reid
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Juan J Moreno
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Shelby L Hooe
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Kira R Baugh
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Isobel H Thomas
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Diane A Dickie
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
| | - Charles W Machan
- Department of Chemistry, University of Virginia PO Box 400319 Charlottesville VA 22904-4319 USA
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20
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Seidler B, Wahyuono RA, Wintergerst P, Ahner J, Hager MD, Rau S, Schubert US, Dietzek B. Red-light sensitized hole-conducting polymer for energy conversion. Phys Chem Chem Phys 2021; 23:18026-18034. [PMID: 34612276 DOI: 10.1039/d1cp03114g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a novel hole conductive polymer with photoactive Os(ii) complexes in the side chains. This PPV derivative can be activated upon absorption of red visible light and delivers notable photocurrents when used as photocathode material. Thus, the polymer presents as a stepping stone towards developing soft matter alternatives to NiO photocathodes, which function under visible light irradiation. To show the concept we combine electrical impedance spectroscopy with steady state spectroscopy. As light-driven hole injection from Os complex to the PPV polymer is thermodynamically feasible both based on reductive quenching of photoexcited PPV and based on oxidative quenching of the photoexcited Os chromophores we investigate the impact of illumination wavelengths on the photocathode behavior and photochemical stability of the material. While both blue and red light excitation, i.e., excitation of the chromophoric units PPV and excitation of the metal-to-ligand charge transfer transitions in the side-chain pendant Os chromophores yield cathodic photocurrents, the photochemical stability is drastically enhanced upon red-light excitation. Hence, the results of the investigations discussed show the validity of the concept developing red-light sensitized hole-conducting polymers for energy conversion.
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Affiliation(s)
- Bianca Seidler
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
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21
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Wei K, Sun YC, Li R, Zhao JF, Chen W, Zhang H. Synthesis of Highly Functionalized Pyridines: A Metal-Free Cascade Process. Org Lett 2021; 23:6669-6673. [PMID: 34406769 DOI: 10.1021/acs.orglett.1c02234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Herein, we report a new process for the synthesis of highly functionalized pyridines based on a tandem Pummerer-type rearrangement, aza-Prins cyclization, and elimination-induced aromatization. This formal [5+1] cyclization provides pyridines in good yields with easily accessible starting materials. The synthetic potential of our new method is further demonstrated in the modification of the frameworks of BINOL and some natural products.
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Affiliation(s)
- Kai Wei
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Yu-Cui Sun
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Rui Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Jing-Feng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China
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22
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Li B, Geoghegan BL, Wölper C, Cutsail GE, Schulz S. Redox Activity of Noninnocent 2,2'-Bipyridine in Zinc Complexes: An Experimental and Theoretical Study. ACS OMEGA 2021; 6:18325-18332. [PMID: 34308063 PMCID: PMC8296587 DOI: 10.1021/acsomega.1c02201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
We report on a systematical reactivity study of β-diketiminate zinc complexes with redox-active 2,2'-bipyridine (bpy). The reaction of LZnI (L = HC[C(Me)N(2,6-iPr2C6H3)]2) with NaB(C6F5)4 in the presence of bpy yielded [LZn(bpy)][B(C6F5)4] (1), with bpy serving as a neutral ligand, whereas reduction reactions of LZnI with 1 or 2 equiv of KC8 in the presence of bpy gave the radical complex LZn(bpy) (2) and [2.2.2-Cryptand-K][LZn(bpy)] (3), in which bpy either acts as a π-radical anion or a diamagnetic dianion, respectively. The paramagnetic nature of 2 was confirmed via solution magnetic susceptibility measurements, and UV-vis spectroscopy shows that 2 exhibits absorption bands typical for bpy radical species. The EPR spectra of 2 and its deuterated analog 2-d 8 demonstrate that the spin density is localized to the bpy ligand. Density functional theoretical calculations and natural bond orbital analysis were employed to elucidate the electronic structure of complexes 1-3 and accurately reproduced the structural experimental data. It is shown that reduction of the bpy moiety results in a decrease in the β-diketiminate co-ligand bite angle and elongation of the Zn-N(β-diketiminate) bonds, which act cooperatively and in synergy with the bpy ligand by decreasing Zn-N(bpy) bond lengths to stabilize the energy of the LUMO.
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Affiliation(s)
- Bin Li
- Institute
for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5−7, 45117 Essen, Germany
| | - Blaise L. Geoghegan
- Institute
for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5−7, 45117 Essen, Germany
- Max
Planck Institute for Chemical Energy Conversion (CEC), Stiftstraße 34−36, 45470 Mülheim an der Ruhr, Germany
| | - Christoph Wölper
- Institute
for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5−7, 45117 Essen, Germany
| | - George E. Cutsail
- Institute
for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5−7, 45117 Essen, Germany
- Max
Planck Institute for Chemical Energy Conversion (CEC), Stiftstraße 34−36, 45470 Mülheim an der Ruhr, Germany
| | - Stephan Schulz
- Institute
for Inorganic Chemistry and Center for Nanointegration Duisburg-Essen
(CENIDE), University of Duisburg-Essen, Universitätsstraße 5−7, 45117 Essen, Germany
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23
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Zhu TT, Tao YT, Sun Y, Wang X, Zhang XW, Chai JL, Han J, Zhao XL, Chen XD. Lanthanide complexes based on an anthraquinone derivative ligand and applications as photocatalysts for visible-light driving photooxidation reactions. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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25
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Zhan ZZ, He JP, Jiang PB, Zhang MM, Wang HS, Luo N, Huang GS. Cu(II)‐Catalyzed Synthesis of 2,3,6‐Trisubstituted Pyridines from Saturated Ketone and Alkynones/1,3‐Dicarbonyl Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202100775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhen Z. Zhan
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Jian P. He
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Peng B. Jiang
- Zhe Jiang Shaoxing Zhejiang Pharmaceutical Co., Ltd. No. 58 Changhe Road, Binhai New City Shaoxing City Zhejiang Province China
| | - Ming M. Zhang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - He S. Wang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Nan Luo
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guo S. Huang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
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26
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Toughening, recyclable and healable nitrile rubber based on multi-coordination crosslink networks after “tetrazine click” reaction. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Preeti, Singh KN. Metal-free multicomponent reactions: a benign access to monocyclic six-membered N-heterocycles. Org Biomol Chem 2021; 19:2622-2657. [PMID: 33683272 DOI: 10.1039/d1ob00145k] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The advent of multicomponent reactions in the synthesis of heterocycles and their ever burgeoning applications in drug development, materials chemistry, and catalysis, have attracted a great deal of current scientific interest. In particular, the metal-free multicomponent synthesis of six membered N-heterocycles has undergone intensive research over the last two decades offering an environmentally benevolent means contrary to traditional metal catalysed reactions. To the best of our knowledge, there exists no exclusive review on the metal-free multicomponent synthesis of six membered N-heterocyles, and hence the present report highlights the progress on metal-free multicomponent reactions with their advantages and mechanistic insights to access monocyclic six-membered N-heterocycles including pyridine, pyrimidine, pyrazine, triazine and their hydrogenated derivatives. The literature is covered since 2000, and the contents offer not only striking methods for divergent synthesis of six-membered N-heterocycles but also put forward some new insights into the exploration of metal-free multicomponent chemistry.
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Affiliation(s)
- Preeti
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Krishna Nand Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Ma DL, Wu C, Liu H, Wu KJ, Leung CH. Luminescence approaches for the rapid detection of disease-related receptor proteins using transition metal-based probes. J Mater Chem B 2021; 8:3249-3260. [PMID: 31647090 DOI: 10.1039/c9tb01889a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Protein biomarkers, particularly abnormally expressed receptor proteins, have been proved to be one of the crucial biomarkers for the rapid assessment, diagnosis, prognosis and prediction of specific human diseases. Transition metal based strategies in particular possess delightful strengths in the in-field and real-time visualization of receptor proteins owing to their unique photophysical properties. In this review, we highlight recent advances in the development of detection methods for receptor protein biomarkers using transition metal based approaches, particularly those employing transition metal complexes. We first discuss the strengths and weaknesses of various strategies used for protein biomarker monitoring in live cells. We then describe the principles of the various sensing platforms and their application for receptor protein detection. Finally, we discuss the challenges and future inspirations in this specific field.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry, Faculty of Science, Hong Kong Baptist University, Kowloon, Hong Kong SAR 999077, China.
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29
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Iron-catalyzed [4 + 2] annulation of α,β-unsaturated ketoxime acetates with enaminones toward functionalized pyridines. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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30
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Sawaki T, Ishizuka T, Namura N, Hong D, Miyanishi M, Shiota Y, Kotani H, Yoshizawa K, Jung J, Fukuzumi S, Kojima T. Photocatalytic hydrogen evolution using a Ru(ii)-bound heteroaromatic ligand as a reactive site. Dalton Trans 2020; 49:17230-17242. [PMID: 33210674 DOI: 10.1039/d0dt03546g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A RuII complex, [RuII(tpphz)(bpy)2]2+ (1) (tpphz = tetrapyridophenazine, bpy = 2,2'-bipyridine), whose tpphz ligand has a pyrazine moiety, is converted efficiently to [RuII(tpphz-HH)(bpy)2]2+ (2) having a dihydropyrazine moiety upon photoirradiation of a water-methanol mixed solvent solution of 1 in the presence of an electron donor. In this reaction, the triplet metal-to-ligand charge-transfer excited state (3MLCT*) of 1 is firstly formed upon photoirradiation and the 3MLCT* state is reductively quenched with an electron donor to afford [RuII(tpphz˙-)(bpy)2]+, which is converted to 2 without the observation of detectable reduced intermediates by nano-second laser flash photolysis. The inverse kinetic isotope effect (KIE) was observed to be 0.63 in the N-H bond formation of 2 at the dihydropyrazine moiety. White-light (380-670 nm) irradiation of a solution of 1 in a protic solvent, in the presence of an electron donor under an inert atmosphere, led to photocatalytic H2 evolution and the hydrogenation of organic substrates. In the reactions, complex 2 is required to be excited to form its 3MLCT* state to react with a proton and aldehydes. In photocatalytic H2 evolution, the H-H bond formation between photoexcited 2 and a proton is involved in the rate-determining step with normal KIE being 5.2 on H2 evolving rates. Density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations on the reaction mechanism of H2 evolution from the ground and photo-excited states of 2 were performed to have a better understanding of the photocatalytic processes.
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Affiliation(s)
- Takuya Sawaki
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba and CREST (JST), 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan.
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31
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Shillito GE, Bodman SE, Mapley JI, Fitchett CM, Gordon KC. Accessing a Long-Lived 3LC State in a Ruthenium(II) Phenanthroline Complex with Appended Aromatic Groups. Inorg Chem 2020; 59:16967-16975. [PMID: 33175498 DOI: 10.1021/acs.inorgchem.0c02102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photophysical properties of a series of heteroleptic Ru(II) complexes of the form [Ru(phen)2(phen-5,6-R2)]2+, where phen = 1,10-phenanthroline and R = phenyl (Ph), p-tert-butylbenzene (p-Ph-tBu), p-methoxybenzene (p-Ph-OMe), and 2-naphthalene (2-naph), have been measured. Variation of the R group does not greatly perturb the electronic properties of the ground state, which were explored with electronic absorption and resonance Raman spectroscopy and are akin to those of the archetypal parent complex [Ru(phen)3]2+. All complexes were shown to possess emissive 3MLCT states, characterized through transient absorption and emission spectroscopy. However, an additional, long-lived excited state was observed in the Ru(II) naphthalene complex. The naphthalene substituents facilitate population of a 40 μs dark state which decays independently to that of the emissive 3MLCT state. This state was characterized as 3LC in nature, delocalized over the naphthalene substituted ligand.
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Affiliation(s)
- Georgina E Shillito
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9001, New Zealand
| | - Samantha E Bodman
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8041, New Zealand
| | - Joseph I Mapley
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9001, New Zealand
| | - Christopher M Fitchett
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8041, New Zealand
| | - Keith C Gordon
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9001, New Zealand
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32
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Chen X, Krajewska AM, McGuinness C, Lynes A, McAteer D, Berner N, Duesberg G, Coleman JN, McDonald AR. Tuning the Photo-electrochemical Performance of Ru II -Sensitized Two-Dimensional MoS 2. Chemistry 2020; 27:984-992. [PMID: 32901976 DOI: 10.1002/chem.202002615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/18/2020] [Indexed: 11/06/2022]
Abstract
Covalently tethering photosensitizers to catalytically active 1T-MoS2 surfaces holds great promise for the solar-driven hydrogen evolution reaction (HER). Herein, we report the preparation of two new RuII -complex-functionalized MoS2 hybrids [RuII (bpy)2 (phen)]-MoS2 and [RuII (bpy)2 (py)Cl]-MoS2 . The influence of covalent functionalization of chemically exfoliated 1T-MoS2 with coordinating ligands and RuII complexes on the HER activity and photo-electrochemical performance of this dye-sensitized system was studied systematically. We find that the photo-electrochemical performance of this RuII -complex-sensitized MoS2 system is highly dependent on the surface extent of photosensitizers and the catalytic activity of functionalized MoS2 . The latter was strongly affected by the number and the kind of functional groups. Our results underline the tunability of the photovoltage generation in this dye-sensitized MoS2 system by manipulation of the surface functionalities, which provides a practical guidance for smart design of future dye-sensitized MoS2 hydrogen production devices towards improved the photofuel conversion efficiency.
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Affiliation(s)
- Xin Chen
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Aleksandra M Krajewska
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Cormac McGuinness
- School of Physics and CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Amy Lynes
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - David McAteer
- School of Physics and CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Nina Berner
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Georg Duesberg
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Jonathan N Coleman
- School of Physics and CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
| | - Aidan R McDonald
- School of Chemistry, CRANN/AMBER Nanoscience Institute, Trinity College Dublin, The University of Dublin, College Green, Dublin, 2, Ireland
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33
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Soliman N, Gasser G, Thomas CM. Incorporation of Ru(II) Polypyridyl Complexes into Nanomaterials for Cancer Therapy and Diagnosis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003294. [PMID: 33073433 DOI: 10.1002/adma.202003294] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Ru(II) polypyridyl complexes are compounds of great interest in cancer therapy due to their unique photophysical, photochemical, and biological properties. For effective treatment, they must be able to penetrate tumor cells effectively and selectively. The development of nanoscale carriers capable of delivering Ru(II) polypyridyl complexes has the potential to passively or selectively enhance their cellular uptake in tumor cells. Many different strategies have been explored to incorporate Ru(II) polypyridyl complexes into a variety of nanosized constructs, ranging from organic to inorganic materials. Herein, recent developments in nanomaterials loaded with Ru(II) polypyridyl complexes are highlighted. Their rational design, preparation, and physicochemical properties are described, and their potential applications in cancer therapy are eventually discussed.
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Affiliation(s)
- Nancy Soliman
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, 75005, France
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, Paris, 75005, France
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, Paris, 75005, France
| | - Christophe M Thomas
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, Paris, 75005, France
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34
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Synthesis of Water-Soluble Copolymers of N-vinylpyrrolidone with N-vinyldithiocarbamate as Multidentate Polymeric Chelation Systems and Their Complexes with Indium and Gallium. Molecules 2020; 25:molecules25204681. [PMID: 33066394 PMCID: PMC7587350 DOI: 10.3390/molecules25204681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/29/2020] [Accepted: 09/11/2020] [Indexed: 11/17/2022] Open
Abstract
Dithiocarbamate (DTC) derivatives of N-vinylpyrrolidone-N-vinylamine (VP–VA) copolymers were synthesized via reaction between the copolymers and carbon disulfide in alkaline medium; molecular masses of the products were 12 and 29 kDa; the VP:VDTC ratios were 94:6 and 83:17 mol.%. Complexation between the obtained DTC derivatives and metal ions (indium and gallium) was investigated. It was demonstrated that metal–DTC ligand complexes with 1:3 ratio between components were formed. Gallium metal–polymer complexes (MPC) were unstable in solution. Individual indium MPC were isolated and characterized by spectral and chromatographic methods. Unlike similar gallium MPC, they appeared to be stable in histidine challenge reaction.
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35
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Basavalingappa V, Xue B, Rencus‐Lazar S, Wang W, Tao K, Cao Y, Gazit E. Self‐Assembled Quadruplex‐Inspired Peptide Nucleic Acid Tetramer for Artificial Photosynthesis. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Vasantha Basavalingappa
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Bin Xue
- Collaborative Innovation Centre of Advanced Microstructures National Laboratory of Solid State Microstructure Key Laboratory of Intelligent Optical Sensing and Manipulation Ministry of Education Department of Physics Nanjing University Nanjing 210093 P.R. China
| | - Sigal Rencus‐Lazar
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
| | - Wei Wang
- Collaborative Innovation Centre of Advanced Microstructures National Laboratory of Solid State Microstructure Key Laboratory of Intelligent Optical Sensing and Manipulation Ministry of Education Department of Physics Nanjing University Nanjing 210093 P.R. China
| | - Kai Tao
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
- State Key Lab of Fluid Power Transmission and Control Department of Mechanical Engineering Zhejiang University Hangzhou Zhejiang 310027 China
| | - Yi Cao
- Collaborative Innovation Centre of Advanced Microstructures National Laboratory of Solid State Microstructure Key Laboratory of Intelligent Optical Sensing and Manipulation Ministry of Education Department of Physics Nanjing University Nanjing 210093 P.R. China
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology George S. Wise Faculty of Life Sciences Tel Aviv University Tel Aviv 6997801 Israel
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36
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Kumar P, Kapur M. Unusual Reactivity of 4-Vinyl Isoxazoles in the Copper-Mediated Synthesis of Pyridines, Employing DMSO as a One-Carbon Surrogate. Org Lett 2020; 22:5855-5860. [DOI: 10.1021/acs.orglett.0c01935] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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37
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Yoshida T, Bera MK, Narayana YSLV, Mondal S, Abe H, Higuchi M. Electrochromic Os-based metallo-supramolecular polymers: electronic state tracking by in situ XAFS, IR, and impedance spectroscopies. RSC Adv 2020; 10:24691-24696. [PMID: 35516189 PMCID: PMC9055175 DOI: 10.1039/d0ra03236k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/09/2020] [Indexed: 01/08/2023] Open
Abstract
In this study, the electronic states of Os-based metallo-supramolecular polymers (poly(OsL)2+) during electrochromism were tracked by in situ X-ray absorption fine structure (XAFS), infrared (IR), and impedance spectroscopies. The XAFS spectra suggested electronic charge migration in the polymer, and the in situ spectra revealed reversible changes caused by electrochemical redox reactions. The IR spectra of the polymers showed an IVCT band, and we also confirmed the reversible changes by applying a voltage to the redox cell. During the impedance measurements, we found a drastic decrease in the charge transfer resistance (RCT) of the polymer films near the electrochemical redox potential. In this study, the electronic states of Os-based metallo-supramolecular polymers (poly(OsL)2+) during electrochromism were tracked by in situ X-ray absorption fine structure (XAFS), infrared (IR), and impedance spectroscopies.![]()
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Affiliation(s)
- Takefumi Yoshida
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Manas Kumar Bera
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Yemineni S L V Narayana
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Sanjoy Mondal
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
| | - Hitoshi Abe
- Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) 1-1 Oho Tsukuba Ibaraki 305-0801 Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science, SOKENDAI (The Graduate University for Advanced Studies) 1-1 Oho Tsukuba Ibaraki 305-0801 Japan.,Graduate School of Science and Technology, Ibaraki University 2-1-1 Bunkyo Mito Ibaraki 310-8512 Japan
| | - Masayoshi Higuchi
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) Tsukuba 305-0044 Japan
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38
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Satake A, Katagami Y, Odaka Y, Kuramochi Y, Harada S, Kouchi T, Kamebuchi H, Tadokoro M. Synthesis of Double-Bridged Cofacial Nickel Porphyrin Dimers with 2,2'-Bipyridyl Pillars and Their Restricted Coordination Space. Inorg Chem 2020; 59:8013-8024. [PMID: 32441925 DOI: 10.1021/acs.inorgchem.0c00177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Double-bridged cofacial Ni porphyrin dimers 2 with 2,2'-bipyridyl pillars were effectively prepared by a one-step reductive homocoupling reaction of bis(chloropyridyl)-substituted Ni porphyrin derivatives followed by a specific separation of a cyanopropyl-modified silica gel column using pyridine eluent systems. The structural analyses of 2 and its Pd complex were carried out in their solid and solution states by means of X-ray single crystal analysis and NMR, respectively. The complexation of η3-allylpalladium chloride (Pd) with 2 on the spatially restricted 2,2-bipyridine moieties on 2 gave a 2:1 (Pd:2) complex, in which the 2,2'-bipyridine ligands only provided one of the N atoms on a 2,2'-bipyridine ligand to a Pd. Therefore, the 2,2-bipyridine moieties acted as a monodentate ligand.
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Affiliation(s)
- Akiharu Satake
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemistry, Faculty of Science Division II, Tokyo University of Science, Tokyo, Japan
| | - Yuta Katagami
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yuki Odaka
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yusuke Kuramochi
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemistry, Faculty of Science Division II, Tokyo University of Science, Tokyo, Japan
| | - Shohei Harada
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takaya Kouchi
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hajime Kamebuchi
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemistry, Faculty of Science Division I, Tokyo University of Science, Tokyo, Japan
| | - Makoto Tadokoro
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.,Department of Chemistry, Faculty of Science Division I, Tokyo University of Science, Tokyo, Japan
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39
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2-Methylimidazole Copper Iminodiacetates for the Adsorption of Oxygen and Catalytic Oxidation of Cyclohexane. Molecules 2020; 25:molecules25061286. [PMID: 32178320 PMCID: PMC7143979 DOI: 10.3390/molecules25061286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/01/2020] [Accepted: 03/06/2020] [Indexed: 11/17/2022] Open
Abstract
The mixed-ligand copper(II) iminodiacetates [Cu(ida)(2-mim)(H2O)2]·H2O (1), [Cu(ida)(2-mim)2]·2H2O (2), [Cu(ida)(2-mim)(H2O)]n·4.5nH2O (3), and [Cu2(ida)2(2-mim)2]n·nH2O (4) (H2ida = iminodiacetic acid, 2-mim = 2-methylimidazole) were obtained from neutral or alkaline solutions at different temperatures. The novel complex 4 contains very small holes with diameters of 2.9 Å, which can adsorb O2 selectively and reversibly between 1.89 to 29.90 bars, compared with the different gases of N2, H2, CO2, and CH4. This complex is stable up to 150 °C based on thermal analyses and XRD patterns. The four complexes show catalytic activities that facilitate the conversion of cyclohexane to cyclohexanol and cyclohexanone with hydrogen peroxide in a solution. The total conversion is 31% for 4.
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40
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Winter A, Schubert US. Metal‐Terpyridine Complexes in Catalytic Application – A Spotlight on the Last Decade. ChemCatChem 2020. [DOI: 10.1002/cctc.201902290] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Andreas Winter
- Laboratory of Organic and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena Humboldtstr. 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Philosophenweg 7a 07743 Jena Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)Friedrich Schiller University Jena Humboldtstr. 10 07743 Jena Germany
- Center for Energy and Environmental Chemistry Jena (CEEC Jena) Philosophenweg 7a 07743 Jena Germany
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41
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Pandey R, Kumar A, Xu Q, Pandey DS. Zinc(ii), copper(ii) and cadmium(ii) complexes as fluorescent chemosensors for cations. Dalton Trans 2020; 49:542-568. [PMID: 31894793 DOI: 10.1039/c9dt03017d] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The fluorescence chemosensing behavior of Zn(ii), Cu(ii), and Cd(ii) based complexes toward cations has been described. Cation detection via conventional mechanisms, metal-metal exchange and chemodosimetric approaches along with the importance of metal ions and the scope, significance, and challenges with regard to the detection of cations by metal complex based probes will be discussed in detail. The fundamentals of photophysical behavior and mechanisms involved in the fluorescence detection of analytes will also be described. This article provides a detailed overview of Zn(ii), Cu(ii), and Cd(ii) based complexes as fluorescent probes for cations, together with essential discussions pertaining to detection mechanisms.
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Affiliation(s)
- Rampal Pandey
- Department of Chemistry, National Institute of Technology Uttarakhand, Srinagar, Garhwal 246174, India
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42
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Zhang L, Duan J, Xu G, Ding X, Mao Y, Rong B, Zhu N, Fang Z, Li Z, Guo K. Copper-Catalyzed N–O Cleavage of α,β-Unsaturated Ketoxime Acetates toward Structurally Diverse Pyridines. J Org Chem 2020; 85:2532-2542. [DOI: 10.1021/acs.joc.9b03238] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lei Zhang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Gaochen Xu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaojuan Ding
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yiyang Mao
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Binsen Rong
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhenjiang Li
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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43
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Ma DL, Wu C, Li G, Yung TL, Leung CH. Transition metal complexes as imaging or therapeutic agents for neurodegenerative diseases. J Mater Chem B 2020; 8:4715-4725. [DOI: 10.1039/c9tb02669j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neurodegenerative diseases are the result of neurodegeneration, which is the process of losing neuronal functions gradually due to the irreversible damage and death of neurons. Metal complexes have attracted intense interest over recent decades as probes or inhibitors of biomolecules.
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Affiliation(s)
- Dik-Lung Ma
- Department of Chemistry
- Faculty of Science
- Hong Kong Baptist University
- Kowloon
- China
| | - Chun Wu
- Department of Chemistry
- Faculty of Science
- Hong Kong Baptist University
- Kowloon
- China
| | - Guodong Li
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
| | - Tsan-Ling Yung
- Department of Chemistry
- Faculty of Science
- Hong Kong Baptist University
- Kowloon
- China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine
- Institute of Chinese Medical Sciences
- University of Macau
- Taipa
- China
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44
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45
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Guven N, Sultanova H, Ozer B, Yucel B, Camurlu P. Tuning of electrochromic properties of electrogenerated polythiophenes through Ru(II) complex tethering and backbone derivatization. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135134] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Route to Useful Metallomonomers: Step-Wise Construction of Bimetallic Triangles by Site-Specific Metalation. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-019-01223-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Zhou J, Huang-Fu X, Huang YY, Cao CN, Han J, Zhao XL, Chen XD. Metal–Organic Framework Based on Heptanuclear Cu–O Clusters and Its Application as a Recyclable Photocatalyst for Stepwise Selective Catalysis. Inorg Chem 2019; 59:254-263. [DOI: 10.1021/acs.inorgchem.9b02084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jie Zhou
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xu Huang-Fu
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yang-Ying Huang
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chu-Ning Cao
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jie Han
- School of Science & Technology, The Open University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Xiao-Li Zhao
- Shanghai Key Laboratory
of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China
| | - Xu-Dong Chen
- Jiangsu Key Laboratory
of Biofunctional Materials and Jiangsu Collaborative Innovation Center
of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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48
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Li Y, Zhu X, Li Y, Zhang M, Ma C, Li H, Lu J, Zhang Q. Highly Robust Organometallic Small-Molecule-Based Nonvolatile Resistive Memory Controlled by a Redox-Gated Switching Mechanism. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40332-40338. [PMID: 31610648 DOI: 10.1021/acsami.9b13401] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although organic small-molecule-based memory devices (OSMDs) have been demonstrated to show great potential for the application in next-generation data-storage technology, progress toward their further development has been hugely hindered by the ambiguity of their electrical switching mechanism. Thus, purposely fabricating OSMDs with a definite switching behavior is very urgent. Here, we reported a redox-gated nonvolatile rewritable memory device using an organometallic small molecule as an active material. By introducing the redox-active ferrocene into an organic skeleton, the target small molecule exhibits reliable and robust FLASH-type bistable electrical characteristics with a clear redox-controlled switching mechanism, which leads to low operational voltages, good endurance, and long retention. Our study offers a proof-of-concept strategy to design controllable OSMDs with excellent performances.
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Affiliation(s)
- Yang Li
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics , Suzhou University of Science and Technology , Suzhou , Jiangsu 215009 , P. R. China
- College of Chemistry, Chemical Engineering, and Materials Science , Soochow University , Suzhou 215123 , P. R. China
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
| | - Xiaolin Zhu
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics , Suzhou University of Science and Technology , Suzhou , Jiangsu 215009 , P. R. China
| | - Yujia Li
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics , Suzhou University of Science and Technology , Suzhou , Jiangsu 215009 , P. R. China
| | - Mayue Zhang
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics , Suzhou University of Science and Technology , Suzhou , Jiangsu 215009 , P. R. China
| | - Chunlan Ma
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics , Suzhou University of Science and Technology , Suzhou , Jiangsu 215009 , P. R. China
| | - Hua Li
- College of Chemistry, Chemical Engineering, and Materials Science , Soochow University , Suzhou 215123 , P. R. China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering, and Materials Science , Soochow University , Suzhou 215123 , P. R. China
| | - Qichun Zhang
- School of Materials Science and Engineering , Nanyang Technological University , Singapore 639798 , Singapore
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Ren Z, Su L, Cai S, Lu W, Qiao Y, He P, Ding M. Synthesis of Polysubstituted Pyridine Derivatives via Sequential AlCl
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‐Catalyzed Condensation/Aza‐Wittig/Isomerization Reactions and a Study of their Antifungal Activities. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900291] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi‐Lin Ren
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
| | - Lei Su
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Shuang Cai
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Wen‐Ting Lu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
| | - Yue Qiao
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Ping He
- College of Chemical EngineeringHubei University of Arts and Science Xiangyang 441053, Hubei Province P. R. of China
| | - Ming‐Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of EducationCentral China Normal University Wuhan 430079 P. R. China
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50
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Okeyoshi K, Yoshida R. Polymeric Design for Electron Transfer in Photoinduced Hydrogen Generation through a Coil-Globule Transition. Angew Chem Int Ed Engl 2019; 58:7304-7307. [PMID: 30939208 DOI: 10.1002/anie.201901666] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/08/2019] [Indexed: 11/12/2022]
Abstract
To realize a renewable energy society, a polymeric system for photoinduced hydrogen generation utilizing a copolymer containing an electron acceptor was designed. In this system, the redox changes of viologen introduced into poly(N-isopropylacrylamide) cause cyclic conformational changes owing to the shifting of the phase transition temperature (PTT). The polymeric coil-globule transitions with hydrophilic/hydrophobic changes accelerate the electron transfer for hydrogen generation. In particular, hydrogen generation using visible-light energy with high efficiency is achieved around the PTT. In contrast to conventional solution systems, our polymeric system enables efficient hydrogen generation in a close molecular arrangement without the aggregation of catalytic nanoparticles. The utilization of conformational changes will provide a new strategy for synthesizing artificial photosynthetic hydrogels that split water to generate both hydrogen and oxygen.
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Affiliation(s)
- Kosuke Okeyoshi
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.,Present address: Japan Advanced Institute of, Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, 923-1292, Japan
| | - Ryo Yoshida
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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