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Sanz-Villafruela J, Bermejo-Casadesus C, Zafon E, Martínez-Alonso M, Durá G, Heras A, Soriano-Díaz I, Giussani A, Ortí E, Tebar F, Espino G, Massaguer A. Insights into the anticancer photodynamic activity of Ir(III) and Ru(II) polypyridyl complexes bearing β-carboline ligands. Eur J Med Chem 2024; 276:116618. [PMID: 38972079 DOI: 10.1016/j.ejmech.2024.116618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/31/2024] [Accepted: 06/22/2024] [Indexed: 07/09/2024]
Abstract
Ir(III) and Ru(II) polypyridyl complexes are promising photosensitizers (PSs) for photodynamic therapy (PDT) due to their outstanding photophysical properties. Herein, one series of cyclometallated Ir(III) complexes and two series of Ru(II) polypyridyl derivatives bearing three different thiazolyl-β-carboline N^N' ligands have been synthesized, aiming to evaluate the impact of the different metal fragments ([Ir(C^N)2]+ or [Ru(N^N)2]2+) and N^N' ligands on the photophysical and biological properties. All the compounds exhibit remarkable photostability under blue-light irradiation and are emissive (605 < λem < 720 nm), with the Ru(II) derivatives displaying higher photoluminescence quantum yields and longer excited state lifetimes. The Ir PSs display pKa values between 5.9 and 7.9, whereas their Ru counterparts are less acidic (pKa > 9.3). The presence of the deprotonated form in the Ir-PSs favours the generation of reactive oxygen species (ROS) since, according to theoretical calculations, it features a low-lying ligand-centered triplet excited state (T1 = 3LC) with a long lifetime. All compounds have demonstrated anticancer activity. Ir(III) complexes 1-3 exhibit the highest cytotoxicity in dark conditions, comparable to cisplatin. Their activity is notably enhanced by blue-light irradiation, resulting in nanomolar IC50 values and phototoxicity indexes (PIs) between 70 and 201 in different cancer cell lines. The Ir(III) PSs are also activated by green (with PI between 16 and 19.2) and red light in the case of complex 3 (PI = 8.5). Their antitumor efficacy is confirmed by clonogenic assays and using spheroid models. The Ir(III) complexes rapidly enter cells, accumulating in mitochondria and lysosomes. Upon photoactivation, they generate ROS, leading to mitochondrial dysfunction and lysosomal damage and ultimately cell apoptosis. Additionally, they inhibit cancer cell migration, a crucial step in metastasis. In contrast, Ru(II) complex 6 exhibits moderate mitochondrial activity. Overall, Ir(III) complexes 1-3 show potential for selective light-controlled cancer treatment, providing an alternative mechanism to chemotherapy and the ability to inhibit lethal cancer cell dissemination.
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Affiliation(s)
- Juan Sanz-Villafruela
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos S/n, 09001, Burgos, Spain
| | - Cristina Bermejo-Casadesus
- Universitat de Girona, Departament de Biologia, Facultat de Ciències, Maria Aurelia Capmany 40, 17003, Girona, Spain
| | - Elisenda Zafon
- Universitat de Girona, Departament de Biologia, Facultat de Ciències, Maria Aurelia Capmany 40, 17003, Girona, Spain
| | - Marta Martínez-Alonso
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos S/n, 09001, Burgos, Spain
| | - Gema Durá
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica. Facultad de Químicas, Avda. Camilo J. Cela 10, 13071, Ciudad Real, Spain
| | - Aranzazu Heras
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos S/n, 09001, Burgos, Spain
| | - Iván Soriano-Díaz
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Angelo Giussani
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universidad de Valencia, Catedrático José Beltrán 2, 46980, Paterna, Spain.
| | - Francesc Tebar
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Centre de Recerca Biomèdica CELLEX, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, 08036, Barcelona, Spain.
| | - Gustavo Espino
- Universidad de Burgos, Departamento de Química, Facultad de Ciencias, Plaza Misael Bañuelos S/n, 09001, Burgos, Spain.
| | - Anna Massaguer
- Universitat de Girona, Departament de Biologia, Facultat de Ciències, Maria Aurelia Capmany 40, 17003, Girona, Spain.
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Li C, Zhao J. Organoplatinum Complex Exhibiting Aggregation-Enhanced Emission (AEE) and Dual-Channel Ion-Sensing Properties by Terminating the Molecular Configuration Transformation (MCT) and Excited-State Intramolecular Proton Transfer (ESIPT). Inorg Chem 2024; 63:11757-11767. [PMID: 38866593 DOI: 10.1021/acs.inorgchem.4c01357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Emitters produce weak emissions when they undergo structural changes such as molecular configuration transformation (MCT) or excited-state intramolecular proton transfer (ESIPT) but give out strong emissions after terminating these distortions. Herein, an organoplatinum complex, Pt-ppy-ABP, carrying a salicylaldehyde-based Schiff base unit is synthesized. It exhibits weak emission in dilute solutions but shows bright emission at the aggregated state or after interacting with F- and Zn2+. This suggests that it has an aggregation-enhanced emission (AEE) property and holds potential in ion detection. Supported by theoretical calculations and femtosecond transient absorption results, this complex suffers excited-state structural changes including MCT from a square-planar configuration to a tetrahedral one, as well as intramolecular rotation of a monodentate ligand and ESIPT, showing weak emission in its solutions. At the aggregated state, it releases strong yellow emissions because of the restraints of MCT and ligand rotation. Upon interacting with F- or Zn2+, it emits bright-red or -green emissions, achieving detection limits of 10-7 M. The sensing mechanism is concluded as deprotonation- and coordination-induced ESIPT terminations, respectively. Given its AEE property and ion-responsive emissions, its application in information encryption is also explored. Finally, these findings should provide valuable clues for the developments of chemosensors with dual-channel recognition abilities.
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Affiliation(s)
- Chencheng Li
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
| | - Jiang Zhao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou, China
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3
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Goswami N, Naithani S, Mangalam J, Goswami T, Dubey R, Kumar P, Kumar P, Kumar S. Fluorescent and chromogenic organic probes to detect group 10 metal ions: design strategies and sensing applications. Dalton Trans 2023; 52:14704-14732. [PMID: 37750386 DOI: 10.1039/d3dt01723k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Group 10 metals including Ni, Pd and Pt have been extensively applied in various essential aspects of human social life, material science, industrial manufactures, medicines and biology. The ionic forms of these metals are involved in several biologically important processes due to their strong binding capability towards different biomolecules. However, the mishandling or overuse of such metals has been linked to serious contamination of our ecological system, more specifically in soil and water bodies with acute consequences. Therefore, the detection of group 10 metal ions in biological as well as environmental samples is of huge significance from the human health point of view. Related to this, considerable efforts are underway to develop adequately efficient and facile methods to achieve their selective detection. Optical sensing of metal ions has gained increasing attention of researchers, particularly in the environmental and biological settings. Innovatively designed optical probes (fluorescent or colorimetric) are usually comprised of three basic components: an explicitly tailored receptor unit, a signalling unit and a clearly defined reporter unit. This review deals with the recent progress in the design and fabrication of fluorescent or colorimetric organic sensors for the detection of group 10 metal ions (Ni(II), Pd(II) and Pt(II)), with attention to the general aspects for design of such sensors.
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Affiliation(s)
- Nidhi Goswami
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Sudhanshu Naithani
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Jimmy Mangalam
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Tapas Goswami
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Ritesh Dubey
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Pramod Kumar
- Department of Chemistry, Mahamana Malviya College Khekra (Baghpat), C.C.S. University Meerut, India
| | - Pankaj Kumar
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
| | - Sushil Kumar
- Department of Chemistry, Applied Science Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun-248007, Uttarakhand, India.
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4
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Lu ZZ, Thanasekaran P, Huang CY, Wu JY, Chang TT, Li WS, Velayudham M, Lu KL. A neutral rhenium-biimidazole complex for the selective recognition of fluoride ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 301:122956. [PMID: 37302197 DOI: 10.1016/j.saa.2023.122956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/13/2023]
Abstract
The neutral rhenium(I)-biimidazole complex [Re(CO)3(biimH)(1,4-NVP)] (1) was designed and synthesized by a one-pot reaction of Re2(CO)10, 2,2'-biimidazole (biimH2) and 4-(1-naphthylvinyl)pyridine (1,4-NVP). The structure of 1 was characterized by various spectroscopic techniques including IR, 1H NMR, FAB-MS, and elemental analysis and further confirmed by a single-crystal X-ray diffraction analysis. The mononuclear complex 1, a relatively simple structure with an octahedral geometry, is comprised of facial-arranged carbonyl groups, one chelated biimH monoanion, and one 1,4-NVP. Complex 1 shows the lowest energy absorption band at around 357 nm and an emission band at 408 nm in THF. The luminescent characteristics of 1 combined with the hydrogen bonding ability of the partially coordinated monoionic biimidazole ligand permits the complex to selectively recognize fluoride ions (F-) in the presence of other halides through a dramatic luminescence enhancement. The recognition mechanism of 1 can be convincingly explained in terms of H-bond formation and proton abstraction upon the addition of F- ions by 1H and 19F NMR titration experiments. The electronic properties of 1 were further supported by time dependent density functional theory (TDDFT) computational studies.
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Affiliation(s)
- Zong-Zhan Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Pounraj Thanasekaran
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Department of Chemistry, Pondicherry University, Puducherry 605 014, India
| | | | - Jing-Yun Wu
- Department of Applied Chemistry, National Chi Nan University, Nantou 545, Taiwan
| | - Tzu-Ting Chang
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Murugesan Velayudham
- Department of Chemistry, Thiagarajar College of Engineering, Madurai 625015, India.
| | - Kuang-Lieh Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Department of Chemistry, Fu Jen Catholic University, New Taipei City 242, Taiwan.
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5
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Development and Application of Ruthenium(II) and Iridium(III) Based Complexes for Anion Sensing. Molecules 2023; 28:molecules28031231. [PMID: 36770897 PMCID: PMC9920910 DOI: 10.3390/molecules28031231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/31/2023] Open
Abstract
Improvements in the design of receptors for the detection and quantification of anions are desirable and ongoing in the field of anion chemistry, and remarkable progress has been made in this direction. In this regard, the development of luminescent chemosensors for sensing anions is an imperative and demanding sub-area in supramolecular chemistry. This decade, in particular, witnessed advancements in chemosensors based on ruthenium and iridium complexes for anion sensing by virtue of their modular synthesis and rich chemical and photophysical properties, such as visible excitation wavelength, high quantum efficiency, high luminescence intensity, long lifetimes of phosphorescence, and large Stokes shifts, etc. Thus, this review aims to summarize the recent advances in the development of ruthenium(II) and iridium(III)-based complexes for their application as luminescent chemosensors for anion sensing. In addition, the focus was devoted to designing aspects of polypyridyl complexes of these two transition metals with different recognition motifs, which upon interacting with different inorganic anions, produces desirable quantifiable outputs.
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6
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Naithani S, Goswami T, Thetiot F, Kumar S. Imidazo[4,5-f][1,10]phenanthroline based luminescent probes for anion recognition: Recent achievements and challenges. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Abdullah TB, Jirjes HM, Faihan AS, Al-Janabi AS. Spectroscopic, computational, anti-bacterial studies of bivalent metal complexes of N-picolyl-amine dithiocarbamate. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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8
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Kumari M, Dey K, Bera SK, Lahiri GK. Indazole-Derived Mono-/Diruthenium and Heterotrinuclear Complexes: Switchable Binding Mode, Electronic Form, and Anion Sensing Events. Inorg Chem 2022; 61:16122-16140. [PMID: 36149433 DOI: 10.1021/acs.inorgchem.2c02628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The article deals with the newer classes of mononuclear: [(acac)2RuIII(H-Iz)(Iz-)] 1, [(acac)2RuIII(H-Iz)2]ClO4 [1]ClO4/[1']ClO4, and [(bpy)2RuII(H-Iz)(Iz-)]ClO4 [2]ClO4, mixed-valent unsymmetric dinuclear: [(acac)2RuIII(μ-Iz-)2RuII(bpy)2]ClO4 [3]ClO4, and heterotrinuclear: [(acac)2RuIII(μ-Iz-)2MII(μ-Iz-)2RuIII(acac)2] (M = Co:4a, Ni:4b, Cu:4c, and Zn:4d) complexes (H-Iz = indazole, Iz- = indazolate, acac = acetylacetonate, and bpy = 2,2'-bipyridine). Structural characterization of all the aforestated complexes established their molecular identities including varying binding modes (Na and Nb donors and 1H-indazole versus 2H-indazole) of the heterocyclic H-Iz/Iz- in the complexes. Unlike [1']ClO4 containing two NH protons at the backface of H-Iz units, the corresponding [1]ClO4 was found to be unstable due to the deprotonation of its positively charged quaternary nitrogen center, and this resulted in the eventual formation of the parent complex 1. A combination of experimental and density functional theory calculations indicated the redox noninnocent feature of Iz- in the complexes along the redox chain. The absence of intervalence charge transfer transition in the near-infrared region of the (Iz-)2-bridged unsymmetric mixed-valent RuIIIRuII state in [3]ClO4 suggested negligible intramolecular electronic coupling corresponding to a class I setup (Robin and Day classification). Heterotrinuclear complexes (4a-4d) exhibited varying spin configurations due to spin-spin interactions between the terminal Ru(III) ions and the central M(II) ion. Though both [3]ClO4 and 4a-4d displayed ligand (Iz-/Iz•)-based oxidation, reductions were preferentially taken place at the bpy and metal (RuIII/RuII) centers, respectively. Unlike 1 or [2]ClO4 containing one free NH proton at the backface of H-Iz, [1']ClO4 with two H-Iz units could selectively and effectively recognize F-, OAc-, and CN- among the tested anions: F-, OAc-, CN-, Cl-, Br-, I-, SCN-, HSO4-, and Η2PΟ4- in CH3CN via intermolecular NH···anion hydrogen bonding interaction. The difference in the sensing feature between [1']ClO4 and 1/[2]ClO4 could be rationalized by their pKa values of 8.4 and 11.3/10.8, respectively.
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Affiliation(s)
- Maya Kumari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Krishnendu Dey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Sudip Kumar Bera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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9
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Riesebeck T, Bertrams MS, Stipurin S, Konowski K, Kerzig C, Strassner T. Cyclometalated Spirobifluorene Imidazolylidene Platinum(II) Complexes with Predominant 3LC Emissive Character and High Photoluminescence Quantum Yields. Inorg Chem 2022; 61:15499-15509. [PMID: 36125339 DOI: 10.1021/acs.inorgchem.2c02141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two novel bidentate C^C*spiro cyclometalated platinum(II) complexes comprising a spiro-conjugated bifluorene ligand and different β-diketonate auxiliary ligands are synthesized and characterized. Their preparation employs a robust and elaborate synthetic protocol commencing with an N-heterocyclic carbene precursor. Structural characterization by means of NMR techniques and solid-state structures validate the proposed and herein presented molecular scaffolds. Photophysical studies, including laser flash photolysis methods, reveal an almost exclusively ligand-centered triplet state, governed by the C^C*spiro-NHC ligand. The high triplet energies and the long triplet lifetimes in the order of 30 μs in solution make the complexes good candidates for light-emitting diode-driven photocatalysis, as initial energy transfer experiments reveal. In-depth time-dependent density functional theory investigations are in excellent accordance with our spectroscopic findings. The title compounds are highly emissive in the bluish-green color region with quantum yields of up to 87% in solid-state measurements.
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Affiliation(s)
- Tim Riesebeck
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | | | - Sergej Stipurin
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Kai Konowski
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Christoph Kerzig
- Department of Chemistry, Johannes Gutenberg University, 55128 Mainz, Germany
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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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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11
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Structural behavior of rhenium complexes in fluoride sensing: a spectroscopic and computational study. Struct Chem 2022. [DOI: 10.1007/s11224-022-01904-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Paul A, Sahoo A, Bhattacharya S, Baitalik S. Anion and Temperature Responsive Molecular Switches Based on Trimetallic Complexes of Ru(II) and Os(II) That Demonstrate Advanced Boolean and Fuzzy Logic Functions. Inorg Chem 2022; 61:3186-3201. [PMID: 35144385 DOI: 10.1021/acs.inorgchem.1c03644] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Anion- and temperature-induced alteration of the photoredox behaviors of our recently reported trimetallic complexes was carried out to fabricate potential molecular switches. The triads [(phen)2Ru(d-HIm-t)M(t-HIm-d)Ru(phen)2]6+ (phen = 1,10-phenanthroline, d-HIm-t = heterotopic bipyridine-terpyridne type bridging ligand, and M = RuII and OsII) possess two acidic imidazole NH protons that upon interaction with anions give rise to considerable changes in their photophysical and electrochemical behaviors. Red-shifts of the absorption and emission maximum and a decrease in the M3+/M2+ potential occur when the triads are treated with basic anions. In fact, the triads can function as triple-channel sensors for F-, AcO-, CN-, OH-, and H2PO4- in acetonitrile and as selective probes for CN- and SCN- in water. The equilibrium constants for the receptor-anion interaction are on the order of 106 M-1, while the limit of detection was on the order of 10-9 M. Temperature plays a key role in the luminescence properties of the triads by adjusting the energy barrier between the emitting triplet metal-to-ligand charge transfer and non-emitting triplet metal-centered levels. A decrease in temperature leads to increases in the emission intensity and lifetime of the triads displaying the "on state", whereas an increase in temperature leads to a decrease in their emission characteristics and thus indicates the "off state" and that the process is fully reversible. In essence, the triads could function as potential switches on the basis of the reversible change in their spectral and redox behaviors under the influence of anion, acid, and temperature. The most important outcome of this study is mimicking several advanced Boolean and fuzzy logic functions by utilizing the spectral response of the triads upon the action of said external stimuli.
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Affiliation(s)
- Animesh Paul
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sohini Bhattacharya
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
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Yang P, He L, Wang Y. Ultrastable Anion Catechol Frameworks (ACFs) of Pentiptycene‐based Quad(catechol) Through Decavalent Hydrogen Bond. ChemistrySelect 2022. [DOI: 10.1002/slct.202103985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pan Yang
- Instrumental Analysis Center Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
| | - Lin He
- Instrumental Analysis Center Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
| | - Youfu Wang
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 PR China
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Szłapa-Kula A, Palion-Gazda J, Ledwon P, Erfurt K, Machura B. A fundamental role of solvent polarity and remote substitution of 2-(4-R-phenyl)-1H-imidazo[4,5-f][1,10]phenanthroline framework in controlling of ground- and excited-state properties of Re(I) chromophores [ReCl(CO) 3(R-C 6H 4-imphen)]. Dalton Trans 2022; 51:14466-14481. [DOI: 10.1039/d2dt02439j] [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
A series of Re(I) carbonyl chromophores with 1H-imidazo[4,5-f][1,10]phenanthroline (imphen) ligand functionalized with electron-donating amine groups attached to the imidazole ring via phenylene linkage was designed to investigate the impact of...
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Pineda LH, Tecuapa-Flores ED, Hernández JG, Thangarasu P, Vázquez Ramos JM. Ruthenium complex of bis(benzimidazole-yl-ethyl)sulfide as chemo-sensor for selective recognition of chloride ion, and its application in real bacterial samples. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Hishimone PN, Hamukwaya E, Uahengo V. The C 2-Symmetry Colorimetric Dye Based on a Thiosemicarbazone Derivative and its Cadmium Complex for Detecting Heavy Metal Cations (Ni 2+, Co 2+, Cd 2+, and Cu 2+) Collectively, in DMF. J Fluoresc 2021; 31:999-1008. [PMID: 33880707 DOI: 10.1007/s10895-021-02734-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
The field of chemosensing has been experiencing an exponential expansion in recent times, due to increased demands for simpler and user-friendly analytical techniques, in order to combat and confront the challenges of industrial pollutions in the twenty-first century. Metal complex-based chemosensors have received little attention while exhibiting excellent sensing properties, comparing to their organic counterparts. Thus, a thiosemicarbazone-based (H) and its cadmium complex (P) were synthesized, characterized and their photophysical and chemosensing properties were investigated in DMF solvent. The addition of molar equivalents of selected cations (of nitrates or chloride salts) to H and P, produced visually detectable colour changes as well as remarkable spectral shifts. Explicitly, the two probes (H and P) were able to collectively discriminate heavy metal cations such as Cd2+, Co2+, Zn2+, Cu2+, Ni2+, and Ag+, both in DMF, among all other heavy metal cations tested. None of the anions could be detected by H or P, even when the tetrabutylammonium salts (TBAs) were used, the action presumably ascribed to the solvent effect. Thus, H and P can be used to selectively and sensitively detect the presence of heavy metal cations, via naked-eye detectable colour changes in an aqueous soluble solvent such as DMF.
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Affiliation(s)
- Philipus N Hishimone
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Eunike Hamukwaya
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Veikko Uahengo
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
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17
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Deb S, Sahoo A, Pal P, Baitalik S. Exploitation of the Second Coordination Sphere to Promote Significant Increase of Room-Temperature Luminescence Lifetime and Anion Sensing in Ruthenium-Terpyridine Complexes. Inorg Chem 2021; 60:6836-6851. [PMID: 33885303 DOI: 10.1021/acs.inorgchem.1c00821] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper deals with the synthesis, characterization, and photophysical behaviors of three Ru(II)-terpyridine complexes derived from a terpyridyl-imidazole ligand (tpy-HImzPh3Me2), wherein a terpyridine moiety has been coupled with a dimethylbenzil unit through a phenylimidazole spacer. The three complexes display strong emission at RT having excited-state lifetimes in the range of 2.3-43.7 ns, depending upon the co-ligand present and the solvents used. Temperature-dependent emission spectral measurements have demonstrated that the energy separation between emitting metal-to-ligand charge transfer state and non-emitting metal-centered state is increased relative to that of [Ru(tpy)2]2+. In contrast to our previously studied Ru(II) complexes containing similar terpyridyl-imidazole motif but differing by peripheral methyl groups, significant enhancement of RT emission intensity and quantum yield and remarkable increase of emission lifetime occur for the present complexes upon protonation of the imidazole nitrogen(s) with perchloric acid. Additionally, by exploiting imidazole NH motif(s), we have examined their anion recognition behaviors in organic and aqueous media. Interestingly, the complexes are capable of visually recognizing cyanide ions in aqueous medium up to the concentration limit of 10-8 M. Computational studies involving density functional theory (DFT) and time-dependent DFT methods have been carried out to obtain insights into their electronic structures and to help with the assignment of absorption and emission bands.
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Affiliation(s)
- Sourav Deb
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Poulami Pal
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
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18
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Formica M, Fusi V, Paderni D, Ambrosi G, Inclán M, Clares MP, Verdejo B, García-España E. A Metal-Based Receptor for Selective Coordination and Fluorescent Sensing of Chloride. Molecules 2021; 26:molecules26082352. [PMID: 33919489 PMCID: PMC8073790 DOI: 10.3390/molecules26082352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/03/2022] Open
Abstract
A scorpionate Zn2+ complex, constituted by a macrocyclic pyridinophane core attached to a pendant arm containing a fluorescent pyridyl-oxadiazole-phenyl unit (PyPD), has been shown to selectively recognize chloride anions, giving rise to changes in fluorescence emission that are clearly visible under a 365 nm UV lamp. This recognition event has been studied by means of absorption, fluorescence, and NMR spectroscopy, and it involves the intramolecular displacement of the PyPD unit by chloride anions. Moreover, since the chromophore is not removed from the system after the recognition event, the fluorescence can readily be restored by elimination of the bound chloride anion.
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Affiliation(s)
- Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy; (V.F.); (D.P.); (G.A.)
- Correspondence: (M.F.); (M.I.); Tel.: +39-072-230-4883 (M.F.); +34-964-4377 (M.I.)
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy; (V.F.); (D.P.); (G.A.)
| | - Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy; (V.F.); (D.P.); (G.A.)
| | - Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino “Carlo Bo”, Via della Stazione 4, 61029 Urbino, Italy; (V.F.); (D.P.); (G.A.)
| | - Mario Inclán
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna Valencia, Spain; (M.P.C.); (B.V.); (E.G.-E.)
- Correspondence: (M.F.); (M.I.); Tel.: +39-072-230-4883 (M.F.); +34-964-4377 (M.I.)
| | - Maria Paz Clares
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna Valencia, Spain; (M.P.C.); (B.V.); (E.G.-E.)
| | - Begoña Verdejo
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna Valencia, Spain; (M.P.C.); (B.V.); (E.G.-E.)
| | - Enrique García-España
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna Valencia, Spain; (M.P.C.); (B.V.); (E.G.-E.)
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19
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Tzeng BC, Lin IL, Chen WH, Lee GH. Anion-Recognition Studies of a Rhenium(I) 4-Mercaptopyridine Compound and Its Ligand-Coupling Products. Inorg Chem 2021; 60:4764-4771. [PMID: 33721490 DOI: 10.1021/acs.inorgchem.0c03723] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of Re(CO)5Cl with 4-mercaptopyridine (4-PySH) led to the formation of [Re(CO)3(4-HPyS)3]Cl (1), showing three hydrogen-bonding donors of 4-PySH ligands as well as a characteristic ligand-to-metal charge-transfer absorption at ca. 380 nm. In this regard, a variety of anions, i.e., CN-, OAc-, F-, Cl-, Br-, I-, PF6-, NO3-, ClO4-, and H2PO4-, were examined to study anion-recognition studies through hydrogen-bonding functionalities. Upon the addition of CN- to a methanolic solution of complex 1, a remarkable spectral change with an isosbestic point at ca. 314 nm in the absorption spectra was observed, with a binding constant (Kb) calculated to be 24770 M-1. Moreover, the OAc- anion also shows a similar trend, but a mild spectral change, with Kb calculated to be 2170 M-1. Unlike those of CN- and OAc-, the addition of F-, Cl-, Br-, and I- anions causes a less pronounced spectral change with an isosbestic point at ca. 350 nm and Kb calculated to be 2863-750 M-1. However, almost no spectral change can be observed for other anions (i.e., PF6-, NO3-, H2PO4-, and ClO4-). Interestingly, the molecular loops of [Re(CO)3Cl(Py2S2)]2 (2; Py2S2 = 4,4'-dipyridyl disulfide) and [Re(CO)3Cl(Py2S)0.35(Py2S2)0.65]2 (3; Py2S = 4,4'-dipyridyl sulfide) can be isolated and structurally characterized by X-ray diffraction, where those crystals were grown from diethyl ether diffusion into a methanolic solution of complex 1 with [Bu4N]CN and [Bu4N]NO3, respectively. It is noted that such unusual ligand-coupling reactions toward the homoligand and hybrid-ligand loops of complexes 2 and 3 can be achieved at room temperature in this study.
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Affiliation(s)
- Biing-Chiau Tzeng
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chia-Yi 621, Taiwan
| | - I-Lin Lin
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chia-Yi 621, Taiwan
| | - Wen-Hui Chen
- Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chia-Yi 621, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry, National Taiwan University, 1 Roosevelt Road, Section 4, Taipei 106, Taiwan
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20
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Spectroscopic and electrochemical recognition of H2PO4− based on a ruthenium complex with 2-picolinamide. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2020.121612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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22
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Kampes R, Tepper R, Görls H, Bellstedt P, Jäger M, Schubert US. Facile and Reliable Emission-Based Nanomolar Anion Sensing by Luminescent Iridium Receptors Featuring Chelating Halogen-Bonding Sites. Chemistry 2020; 26:14679-14687. [PMID: 32686111 PMCID: PMC7756348 DOI: 10.1002/chem.202002738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Indexed: 12/21/2022]
Abstract
An anion sensor is presented that combines a bidentate hydrogen‐ (HB) or halogen‐bonding (XB) site with a luminescent monocationic Ir fragment for strong binding of common anions (Ka up to 6×104
m−1) with diagnostic emission changes. A new emission‐based protocol for fast and reliable detection was derived on the basis of correction for systematic but unspecific background effects. Such a simple correction routine circumvents the hitherto practical limitations of systematic emission‐based analysis of anion binding with validated open‐source software (BindFit). The anticipated order of Ka values was obeyed according to size and basicity of the anions (Cl>Br=OAc) as well as the donor atom of the receptor (XB: 6×104
m−1 > HB: 5×103
m−1), and led to submicromolar limits of detection within minutes. The results were further validated by advanced NMR techniques, and corroborated by X‐ray crystallographic data and DFT analysis, which reproduced the structural and electronic features in excellent agreement. The results suggest that corrected emission‐based sensing may become a complementary, reliable, and fast tool to promote the use of XB in various application fields, due to the simple and fast optical determination at high dilution.
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Affiliation(s)
- Robin Kampes
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ronny Tepper
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.,Current address: Intelligent fluids GmbH, Karl-Heine-Strasse 99, 04229, Leipzig, Germany
| | - Helmar Görls
- Laboratory of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 8, 07743, Jena, Germany
| | - Peter Bellstedt
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Laboratory of Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 8, 07743, Jena, Germany
| | - Michael Jäger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany.,Jena Center of Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.,Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
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23
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Lifshits LM, Roque Iii JA, Konda P, Monro S, Cole HD, von Dohlen D, Kim S, Deep G, Thummel RP, Cameron CG, Gujar S, McFarland SA. Near-infrared absorbing Ru(ii) complexes act as immunoprotective photodynamic therapy (PDT) agents against aggressive melanoma. Chem Sci 2020; 11:11740-11762. [PMID: 33976756 PMCID: PMC8108386 DOI: 10.1039/d0sc03875j] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/04/2020] [Indexed: 12/15/2022] Open
Abstract
Mounting evidence over the past 20 years suggests that photodynamic therapy (PDT), an anticancer modality known mostly as a local treatment, has the capacity to invoke a systemic antitumor immune response, leading to protection against tumor recurrence. For aggressive cancers such as melanoma, where chemotherapy and radiotherapy are ineffective, immunomodulating PDT as an adjuvant to surgery is of interest. Towards the development of specialized photosensitizers (PSs) for treating pigmented melanomas, nine new near-infrared (NIR) absorbing PSs based on a Ru(ii) tris-heteroleptic scaffold [Ru(NNN)(NN)(L)]Cln, were explored. Compounds 2, 6, and 9 exhibited high potency toward melanoma cells, with visible EC50 values as low as 0.292–0.602 μM and PIs as high as 156–360. Single-micromolar phototoxicity was obtained with NIR-light (733 nm) with PIs up to 71. The common feature of these lead NIR PSs was an accessible low-energy triplet intraligand (3IL) excited state for high singlet oxygen (1O2) quantum yields (69–93%), which was only possible when the photosensitizing 3IL states were lower in energy than the lowest triplet metal-to-ligand charge transfer (3MLCT) excited states that typically govern Ru(ii) polypyridyl photophysics. PDT treatment with 2 elicited a pro-inflammatory response alongside immunogenic cell death in mouse B16F10 melanoma cells and proved safe for in vivo administration (maximum tolerated dose = 50 mg kg−1). Female and male mice vaccinated with B16F10 cells that were PDT-treated with 2 and challenged with live B16F10 cells exhibited 80 and 55% protection from tumor growth, respectively, leading to significantly improved survival and excellent hazard ratios of ≤0.2. Ru(ii) photosensitizers (PSs) destroy aggressive melanoma cells, triggering an immune response that leads to protection against tumor challenge and mouse survival.![]()
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Affiliation(s)
- Liubov M Lifshits
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington Texas 76019-0065 USA
| | - John A Roque Iii
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington Texas 76019-0065 USA .,Department of Chemistry and Biochemistry, The University of North Carolina at Greensboro Greensboro North Carolina 27402 USA
| | - Prathyusha Konda
- Department of Microbiology and Immunology, Dalhousie University Halifax Nova Scotia B3H 1X5 Canada
| | - Susan Monro
- Department of Chemistry, Acadia University Wolfville Nova Scotia B4P 2R6 Canada
| | - Houston D Cole
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington Texas 76019-0065 USA
| | - David von Dohlen
- Department of Chemistry and Biochemistry, The University of North Carolina at Greensboro Greensboro North Carolina 27402 USA
| | - Susy Kim
- Department of Cancer Biology, Wake Forest School of Medicine Winston Salem NC 27157 USA
| | - Gagan Deep
- Department of Cancer Biology, Wake Forest School of Medicine Winston Salem NC 27157 USA
| | - Randolph P Thummel
- Department of Chemistry, University of Houston 112 Fleming Building Houston Texas 77204-5003 USA
| | - Colin G Cameron
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington Texas 76019-0065 USA
| | - Shashi Gujar
- Department of Microbiology and Immunology, Dalhousie University Halifax Nova Scotia B3H 1X5 Canada .,Department of Pathology, Dalhousie University Halifax Nova Scotia B3H 1X5 Canada.,Department of Biology, Dalhousie University Halifax Nova Scotia B3H 1X5 Canada.,Beatrice Hunter Cancer Research Institute Halifax Nova Scotia B3H 4R2 Canada
| | - Sherri A McFarland
- Department of Chemistry and Biochemistry, The University of Texas at Arlington Arlington Texas 76019-0065 USA
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24
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Golpayegani F, Mirjafary Z, Saeidian H, Mokhtari J. Utilizing the cyclopentadiene scaffolds in the design of novel organic anion receptors: A DFT analysis. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Dey N, Bhattacharya S. Switchable Optical Probes for Simultaneous Targeting of Multiple Anions. Chem Asian J 2020; 15:1759-1779. [DOI: 10.1002/asia.201901811] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/08/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Nilanjan Dey
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012
- Present Address: Department of Chemistry Kyoto University Kyoto Prefecture 606-8501 Japan
| | - Santanu Bhattacharya
- Department of Organic Chemistry Indian Institute of Science Bangalore 560012
- Present Address Indian Association of Cultivation of Science Kolkata 700032 India
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26
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Xiao Y, Chu WK, Ng CO, Cheng SC, Tse MK, Yiu SM, Ko CC. Design and Synthesis of Luminescent Bis(isocyanoborato) Rhenate(I) Complexes as a Selective Sensor for Cyanide Anion. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00204] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yelan Xiao
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Wing-Kin Chu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chi-On Ng
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Shun-Cheung Cheng
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Man-Kit Tse
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Shek-Man Yiu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chi-Chiu Ko
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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27
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Kato R, Kahara H, Ishii Y, Hattori T. Anion sensing properties of electrospun nanofibers incorporating a thiourea-based chromoionophore in methanol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117656. [PMID: 31748159 DOI: 10.1016/j.saa.2019.117656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 10/13/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
To sense hydrophilic anions in protic solvents, we fabricated polymethylmethacrylate (PMMA) nanofibers incorporating 4-nitrophenyl azo thiourea polymer as a chromoionophore. When methanol solutions containing anions contacted the PMMA nanofiber, a bathochromic shift from 386 nm was observed in the absorption maximum of the chromoionophore. This spectral change is due to hydrogen bond formation between the urea moiety of the thiourea-based polymer and anions penetrating the nanofiber. This spectral change was not observed in PMMA film incorporating the same anion sensor, and the difference is attributed to the much larger specific surface area of the nanofiber compared to the film. As a result, many anions could react with the anion-sensing polymers in the nanofiber and induce a large spectral response.
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Affiliation(s)
- Ryo Kato
- Cooperative Research Facility Center, Toyohashi University of Technology, Toyohashi, 441-8580, Japan.
| | - Hiroshi Kahara
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, 441-8580, Japan
| | - Yuya Ishii
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Toshiaki Hattori
- Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, 441-8580, Japan
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28
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Liu JQ, Luo ZD, Pan Y, Kumar Singh A, Trivedi M, Kumar A. Recent developments in luminescent coordination polymers: Designing strategies, sensing application and theoretical evidences. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213145] [Citation(s) in RCA: 263] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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29
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Synthesis, characterization and DFT studies of complexes bearing [Re(CO)3]+ core and reactivity towards cyanide ion. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Ambrosi G, Paz Clares M, Pont I, Formica M, Fusi V, Ricci A, Paoli P, Rossi P, García-España E, Inclán M. Zn 2+ and Cu 2+ complexes of a fluorescent scorpiand-type oxadiazole azamacrocyclic ligand: crystal structures, solution studies and optical properties. Dalton Trans 2020; 49:1897-1906. [PMID: 31970351 DOI: 10.1039/c9dt04764f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A ligand comprised of a macrocyclic pyridinophane core having a pendant arm containing a secondary amine group linked through a methylene spacer to a pyridyl-oxadiazole-phenyl (PyPD) fluorescent system has been prepared (L). The crystal structures of [ZnL](ClO4)2 and [CuL](ClO4)2 show that M2+ is coordinated to all the nitrogen atoms of the macrocyclic core, the secondary amine of the pendant arm and the nitrogen atom of the pyridine group of the fluorescent moiety, the latter bond being clearly weaker than the one with the pyridine of the macrocycle. Solution studies showed the formation of a highly stable Cu2+ complex with 1 : 1 stoichiometry, whereas with Zn2+ least stable complexes were formed and, given the right conditions, a [Zn3L2]6+ species was also detected, but it was not possible to isolate this species in the solid state. Following Zn2+ coordination, a strong chelation-induced enhancement of fluorescence was observed, a behaviour that was not observed with any of the other metal cations tested.
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Affiliation(s)
- Gianluca Ambrosi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, I-61029 Urbino, Italy.
| | - M Paz Clares
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Isabel Pont
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, I-61029 Urbino, Italy.
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, I-61029 Urbino, Italy.
| | - Angela Ricci
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, I-61029 Urbino, Italy.
| | - Paola Paoli
- Department of Industrial Engineering, University of Firenze, Via S. Marta 3, I-50139 Firenze, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Firenze, Via S. Marta 3, I-50139 Firenze, Italy
| | - Enrique García-España
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
| | - Mario Inclán
- Institute of Molecular Sciences, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain.
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31
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Nickel (II) complex [NiCl2(DMF)2L2] bearing diaminobenzene and sulfonamide: Crystal structure and catalytic application in the reduction of nitrobenzenes. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114181] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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32
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Fantozzi N, Pétuya R, Insuasty A, Long A, Lefevre S, Schmitt A, Robert V, Dutasta JP, Baraille I, Guy L, Genin E, Bégué D, Martinez A, Pinet S, Gosse I. A new fluorescent hemicryptophane for acetylcholine recognition with an unusual recognition mode. NEW J CHEM 2020. [DOI: 10.1039/d0nj02794d] [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
The ammonium of the target interacts with the south part of the hemicryptophane probably because the cyclotriveratrylene's electronic density is altered by the extension of conjugation.
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33
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A novel and simple route for bromide replacement in pyrazolyl-pyridazine ReI tricarbonyl complexes leads to a zwitterion stabilized by hydrogen bonding. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Alam P, Climent C, Alemany P, Laskar IR. “Aggregation-induced emission” of transition metal compounds: Design, mechanistic insights, and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.100317] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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35
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Do the bridging angle affect the luminescent properties of [(CO)3(phen)Re(µ-OH)Re(phen)(CO)3]+? An experimental and computational study on three polymorphs. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.114150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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36
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Keszei SJ, Balogh S, Fehér C, Nagy L, Tumanov N, Wouters J, Lendvay G, Skoda‐Földes R. Molecular Recognition of Strong Acids by Using a 2‐Ureido‐4‐Ferrocenyl Pyrimidine Receptor. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Soma J. Keszei
- Institute of Chemistry Department of Organic Chemistry University of Pannonia Egyetem u. 10. (P.O.Box 158) 8200 Veszprém Hungary
| | - Szabolcs Balogh
- Institute of Chemistry NMR Laboratory University of Pannonia Egyetem u. 10 8200 Veszprém Hungary
| | - Csaba Fehér
- Institute of Chemistry Department of Organic Chemistry University of Pannonia Egyetem u. 10. (P.O.Box 158) 8200 Veszprém Hungary
| | - Lívia Nagy
- János Szentágothai Research Center NMR Laboratory University of Pécs Ifjúság útja 20 7624 Pécs Hungary
| | - Nikolay Tumanov
- Department of Chemistry NMR Laboratory University of Namur 5000 Namur Belgium
| | - Johan Wouters
- Department of Chemistry NMR Laboratory University of Namur 5000 Namur Belgium
| | - György Lendvay
- Institute of Chemistry Department of General and Inorganic Chemistry University of Pannonia 8200 Veszprém Hungary
- Institute of Materials and Environmental Chemistry Research Centre for Natural Sciences Hungarian Academy of Sciences 1117 Budapest Hungary
| | - Rita Skoda‐Földes
- Institute of Chemistry Department of Organic Chemistry University of Pannonia Egyetem u. 10. (P.O.Box 158) 8200 Veszprém Hungary
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37
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Shi Y, Liu X, Shan Y, Zhang X, Kong W, Lu Y, Tan Z, Li XL. Naked-eye repeatable off–on–off and on–off–on switching luminescence of copper(i)-1H-imidazo[4,5-f][1,10]phenanthroline complexes with reversible acid–base responses. Dalton Trans 2019; 48:2430-2441. [PMID: 30688965 DOI: 10.1039/c8dt04538k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Repeatable off–on–off or on–off–on luminescence of a series of Cu(i) complexes is observed with reversible base–acid or acid–base responses.
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Affiliation(s)
- Ying Shi
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Xia Liu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Yuyu Shan
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Xia Zhang
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Weibo Kong
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Yuenan Lu
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Zhidan Tan
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
| | - Xiu-Ling Li
- School of Chemistry and Materials Science & Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- China
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38
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Pizarro N, Saldías M, Guzmán N, Sandoval-Altamirano C, Kahlal S, Saillard JY, Hamon JR, Vega A. 1IL and 3MLCT excited states modulated by H+: the structure and photophysical properties of [(2-bromo-5-(1H-pyrazol-1-yl)pyrazine)Re(CO)3Br]. NEW J CHEM 2019. [DOI: 10.1039/c8nj04196b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photophysical characterization of pyrazolyl–pyrazine Re(i) complex, shows a 1IL and 3MLCT excited states, being just the 3MLCT able to react with trifluoroacetic acid to yield the protonated and long-lived 3ILH+ species. These findings make the compound a potential sensor for protons in solution in the presence of light.
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Affiliation(s)
- Nancy Pizarro
- Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas
- Viña del Mar
- Chile
| | - Marianela Saldías
- Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas
- Viña del Mar
- Chile
| | - Nicolás Guzmán
- Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas
- Viña del Mar
- Chile
| | | | - Samia Kahlal
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Jean-Yves Saillard
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Jean-René Hamon
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR 6226
- F-35000 Rennes
- France
| | - Andrés Vega
- Universidad Andres Bello, Facultad de Ciencias Exactas, Departamento de Ciencias Químicas
- Viña del Mar
- Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA
- Chile
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39
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Group 10 metal complexes of dithiocarbamates derived from primary anilines: Synthesis, characterization, computational and antimicrobial studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.10.073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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40
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Abate PO, Pourrieux G, Morán Vieyra FE, Cattaneo M, Vergara MM, Katz NE. A new molecular switch based on a symmetrical dinuclear complex of two tricarbonylrhenium(I) moieties bridged by 4,4″-azobis-(2,2′-bipyridine). Polyhedron 2018. [DOI: 10.1016/j.poly.2018.04.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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41
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Ramdass A, Sathish V, Velayudham M, Thanasekaran P, Rajagopal S. Phosphorescence “Turn-On” Sensing of Anions by Rhenium(I) Schiff-Base Complexes. ChemistrySelect 2018. [DOI: 10.1002/slct.201702306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Arumugam Ramdass
- Research Department of Chemistry; Aditanar College of Arts and Science; Tiruchendur - 628 216 India
| | - Veerasamy Sathish
- Department of Chemistry; Bannari Amman Institute of Technology; Sathyamangalam - 638 401 India
| | - Murugesan Velayudham
- Department of Chemistry; Thiagarajar College of Engineering; Madurai - 625015 India
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42
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Chang G, Wang Y, Wang C, Li Y, Xu Y, Yang L. A recyclable hydroxyl functionalized polyindole hydrogel for sodium hydroxide extraction via the synergistic effect of cation–π interactions and hydrogen bonding. Chem Commun (Camb) 2018; 54:9785-9788. [DOI: 10.1039/c8cc05819a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We have successfully constructed a new type of recyclable indole-based hydrogel, which exhibited highly effective extraction behavior for hydroxide via the synergistic effect of cation–π interactions and hydrogen bonds.
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Affiliation(s)
- Guanjun Chang
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
| | - Yan Wang
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
| | - Cheng Wang
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
| | - Yannan Li
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
| | - Yewei Xu
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
| | - Li Yang
- State Key Laboratory of Environment-friendly Energy Materials
- National Engineering Technology Center for Insulation Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
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43
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Gabr MT, Pigge FC. A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(ii) complex. Dalton Trans 2018; 47:2079-2085. [DOI: 10.1039/c7dt04242f] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A Co(ii) complex based on an AIE-active tetraarylethylene ligand displays selective fluorescence enhancement in the presence of cyanide anion in aqueous solution.
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44
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Chang KC, Chen CY, Lin TP, Ku PJ, Chen CL, Wang CM, Lin HM, Tseng MC, Singh AS, Sun SS. Platinum(II)-directed Self-assembly Loop Complexes for Anion Recognition and Sensing. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kai-Chi Chang
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | - Chan-Yu Chen
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | - Tzu-Pin Lin
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | - Po-Jen Ku
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | - Chun-Lin Chen
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | - Chih-Ming Wang
- Department of Life Sciences; National Ocean University; Keelung Taiwan
| | - Hsiu-Mei Lin
- Department of Life Sciences; National Ocean University; Keelung Taiwan
| | - Mei-Chun Tseng
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
| | | | - Shih-Sheng Sun
- Institute of Chemistry; Academia Sinica; Taipei 115 Taiwan
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45
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Chen CH, Gabbaï FP. Exploiting the Strong Hydrogen Bond Donor Properties of a Borinic Acid Functionality for Fluoride Anion Recognition. Angew Chem Int Ed Engl 2017; 57:521-525. [DOI: 10.1002/anie.201709494] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Chang-Hong Chen
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
| | - François P. Gabbaï
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
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46
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Chen CH, Gabbaï FP. Exploiting the Strong Hydrogen Bond Donor Properties of a Borinic Acid Functionality for Fluoride Anion Recognition. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709494] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chang-Hong Chen
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
| | - François P. Gabbaï
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
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47
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Li GB, Pan RK, Liu SG. Synthesis, crystal structure, fluorescence properties of 1D chain Manganese (II) and Cadmium (II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 187:168-173. [PMID: 28686918 DOI: 10.1016/j.saa.2017.06.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 06/18/2017] [Accepted: 06/30/2017] [Indexed: 06/07/2023]
Abstract
Two complexes, {[Mn(3-pmpmd)2(Cl)2]·2H2O}n(1), {[Cd(3-pmpmd) (I)2]·CHCl3·H2O}n(2), (3-pmpmd, N,N'-bis(3-pyridylmethyl)pyromellitic diimide) were synthesized and characterized by elemental analyses, IR spectroscopy, thermogravimetric analyses, and X-ray single-crystal structure analysis. The conformations of 3-pmpmd ligand affect their structural diversity. Complex 1 is a 1D double chain structure in edge-to-edge arrangement by π⋯π interactions. Complex 2 is a typical 1D zigzag chain structure arranged in a parallel array containing 1D channel to accommodate the chloroform and water guest molecules. Thermal stabilities and fluorescence properties of both complexes were investigated. The solution of complex 2 in DMF can sense for I- anion by quenching fluorescence intensity, whereas other anions increasing fluorescence intensity.
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Affiliation(s)
- Guo-Bi Li
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, China
| | - Rong-Kai Pan
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, China
| | - Sheng-Gui Liu
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, China.
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48
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Lee MM, Lin J, Chang C, Hung C, Chen C, Hsu C, Sun S. Synthesis, Electrochemical and Photophysical Properties of 2,4,6‐Tripyridyl‐1,3,5‐Triazine‐Bridged Trinuclear Diimine Rhenium(I) Tricarbonyl Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mandy M. Lee
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Ju‐Ling Lin
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Che‐Wei Chang
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Chen‐Yen Hung
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Chih‐Wei Chen
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Chao‐Ping Hsu
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
| | - Shih‐Sheng Sun
- Institute of Chemistry Academia Sinica 11529 Taipei Taiwan, Republic of China
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49
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Rommel SA, Sorsche D, Fleischmann M, Rau S. Optical Sensing of Anions via Supramolecular Recognition with Biimidazole Complexes. Chemistry 2017; 23:18101-18119. [PMID: 28317177 DOI: 10.1002/chem.201605782] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Indexed: 12/30/2022]
Abstract
Phosphorescent metal complexes with peripheral N-H donor functionalities have attracted great attention as potential molecular sensing units for anionic species lately. In this contribution we discuss the development and potential of anion recognition and sensing features of recent examples of luminescent 2,2'-biimidazole complexes of ruthenium(II), iridium(III), osmium(II) and cobalt(III). The general dependency of photophysical features in these complexes regarding the acid-base chemistry of the peripheral N-H functionalities will be outlined as a basic requirement for optical ion recognition. Systematic strategies for the tuning and specific improvement by synthetic means will be discussed regarding recent reports. With respect to their distinct photophysical features, different transition metals are considered individually to demonstrate particular trends regarding ligand modification within the respective groups. In summary, this review elucidates the current state-of-the-art and future potential of the versatile class of 2,2'-biimidazole based sensor chromophores.
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Affiliation(s)
- Sebastian A Rommel
- Institute for Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Dieter Sorsche
- Institute for Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Maximilian Fleischmann
- Institute for Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Sven Rau
- Institute for Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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50
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Alreja P, Kaur N. Modulation in Photophysical Properties of Fluorescent Imidazole Possessing 1,10-Phenanthroline on Introduction of Ru(bipy) 2
2+
towards Cation Sensing. ChemistrySelect 2017. [DOI: 10.1002/slct.201701331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Priya Alreja
- Department of Chemistry; Panjab University; Chandigarh 160014 India
| | - Navneet Kaur
- Department of Chemistry; Panjab University; Chandigarh 160014 India
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