1
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Magnabosco G, Ochs M, Bonakdar N, Czerwenka L, Andrieu-Brunsen A, Vogel N. Inverse opals with reactive surface chemistry as sensors for aqueous pollutants. Chem Commun (Camb) 2024; 60:7594-7597. [PMID: 38952173 DOI: 10.1039/d4cc01781a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Inverse opal colorimetric sensors operating on wetting transitions usually rely on physical differences of the infiltrating liquid. Here, we exploit a reactive surface chemistry that changes wettability upon binding of an analyte. Upon binding of Fe3+ to a Schiff base immobilized on the porous structure, the surface becomes more hydrophilic, triggering the infiltration of the structure and causing the structural color to disappear.
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Affiliation(s)
- Giulia Magnabosco
- Institute of Particle Technology Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstraße 4, 91058 Erlangen, Germany.
| | - Maria Ochs
- Ernst-Berl Institut für Technische und Makromolekulare Chemie Technische Universität Darmstadt Alarich-Weiss-Str. 8 64287 Darmstadt, Germany.
| | - Natalie Bonakdar
- Institute of Particle Technology Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstraße 4, 91058 Erlangen, Germany.
| | - Laura Czerwenka
- Ernst-Berl Institut für Technische und Makromolekulare Chemie Technische Universität Darmstadt Alarich-Weiss-Str. 8 64287 Darmstadt, Germany.
| | - Annette Andrieu-Brunsen
- Ernst-Berl Institut für Technische und Makromolekulare Chemie Technische Universität Darmstadt Alarich-Weiss-Str. 8 64287 Darmstadt, Germany.
| | - Nicolas Vogel
- Institute of Particle Technology Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstraße 4, 91058 Erlangen, Germany.
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2
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Fosnacht KG, Pluth MD. Activity-Based Fluorescent Probes for Hydrogen Sulfide and Related Reactive Sulfur Species. Chem Rev 2024; 124:4124-4257. [PMID: 38512066 PMCID: PMC11141071 DOI: 10.1021/acs.chemrev.3c00683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Hydrogen sulfide (H2S) is not only a well-established toxic gas but also an important small molecule bioregulator in all kingdoms of life. In contemporary biology, H2S is often classified as a "gasotransmitter," meaning that it is an endogenously produced membrane permeable gas that carries out essential cellular processes. Fluorescent probes for H2S and related reactive sulfur species (RSS) detection provide an important cornerstone for investigating the multifaceted roles of these important small molecules in complex biological systems. A now common approach to develop such tools is to develop "activity-based probes" that couple a specific H2S-mediated chemical reaction to a fluorescent output. This Review covers the different types of such probes and also highlights the chemical mechanisms by which each probe type is activated by specific RSS. Common examples include reduction of oxidized nitrogen motifs, disulfide exchange, electrophilic reactions, metal precipitation, and metal coordination. In addition, we also outline complementary activity-based probes for imaging reductant-labile and sulfane sulfur species, including persulfides and polysulfides. For probes highlighted in this Review, we focus on small molecule systems with demonstrated compatibility in cellular systems or related applications. Building from breadth of reported activity-based strategies and application, we also highlight key unmet challenges and future opportunities for advancing activity-based probes for H2S and related RSS.
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Affiliation(s)
- Kaylin G. Fosnacht
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, United States
| | - Michael D. Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon, 97403-1253, United States
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3
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Wang A, Mao Y, Chen X, Lu L, Jiang C, Lu H. A purine-based fluorescent probe for H 2S detection and imaging of cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123674. [PMID: 38042125 DOI: 10.1016/j.saa.2023.123674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/04/2023]
Abstract
Hydrogen sulfide (H2S) is a gas with a toxic odor that plays an irreplaceable role in physiological activities within the mammalian body. Therefore, it is important to do the distribution and quantitative detection of H2S in mammalian cells. In this paper, a fluorescence probe (EDPH) based on purine scaffold was designed and synthesized with high sensitivity and good selectivity. H2S induced ether bond breakage in EDPH, resulting in a significant redshift of the absorption band (from 370 nm to 500 nm) with a Stokes shift of 130 nm. After the addition of H2S, the fluorescence intensity of EDPH showed a good linear correlation with the concentration of H2S, which enabled the quantitative detection of H2S with a low limit of detection (41 nM). Finally, the EDPH was applied to the cellular Hele, and the probe has good cellularity imaging capability for the detection of H2S in living systems.
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Affiliation(s)
- Anguan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Yanxia Mao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Xu Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Linchuan Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China
| | - Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China.
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212000 Zhenjiang, China.
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4
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Gaeta M, Oliveri IP, Munzi G, Lo Presti F, Di Bella S. Stimuli-Responsive Properties of a Zinc(II) Salen-Type Schiff-Base Complex and Vapochromic Detection of Volatile Organic Compounds. Inorg Chem 2024; 63:3850-3858. [PMID: 38353116 DOI: 10.1021/acs.inorgchem.3c04165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
This contribution reports, through a combined thermogravimetric analysis, differential scanning calorimetry, UV-vis, powder X-ray diffraction, and Rietveld refinement analysis, on the stimuli-responsive chromic properties of a substituted Zn(salmal) Schiff-base Lewis acidic complex with unique and distinct thermo- and vapochromic characteristics. The solid complex obtained in air or by evaporation of the solvent from their THF solutions shows a marked thermochromism associated with a phase transition, unusually triggered by the reversible desorption/adsorption of one lattice water molecule. In contrast, the anhydrous solid, achieved from THF solutions of the complex by evaporation of the solvent under anhydrous conditions, behaves very differently as it does not show any absorption of water or thermochromism and exhibits varied vapochromic properties. Detection of volatile organic compounds having Lewis basicity is demonstrated by using the anhydrous solid or the related cast films on glass or paper substrates. In both cases, a marked vapochromism is observed upon exposure to vapors of various volatile species and involves well-defined optical absorptions and naked-eye color changes, also allowing the discrimination of primary aliphatic amines. Vapochromic behavior with the formation of stable, stoichiometric adducts is also demonstrated for both the solid obtained in air and the anhydrous solid or for the related cast films after exposure to vapors of pyridine.
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Affiliation(s)
- Massimiliano Gaeta
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Gabriella Munzi
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Francesca Lo Presti
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy
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5
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Wada Y, Maruchi T, Ishii R, Sunada Y. Visible Light Responsive Dinuclear Zinc Complex Consisting of Proximally Arranged Two d 10 -Zinc Centers. Angew Chem Int Ed Engl 2023; 62:e202310571. [PMID: 37753736 DOI: 10.1002/anie.202310571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 09/28/2023]
Abstract
So far, Zn(II)-based d10 complexes have been known to be colorless unless they are accompanied by chromophoric groups, and therefore both fundamental and advanced photophysical performance of Zn centers of complexes, especially in visible-light regions has been unexplored. Here, we first demonstrate a dinuclear Zn(II) complex that shows visible light absorption using an orbital distributed over closely contacted two Zn centers experimentally determined by X-ray crystallography. A contrastive study demonstrated that intermetallic orbital interaction in dinuclear Zn(II) complex is responsible for capturing visible light to exhibit orangish yellow color, whereas an analogous one without such an interaction is colorless. This work demonstrates that introduction of Zn-Zn interactions to Zn(II) molecules contradicts the common notion that Zn is unresponsive to visible light and expands the photophysical field of zinc chemistry.
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Affiliation(s)
- Yoshimasa Wada
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
| | - Takahiro Maruchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
| | - Reon Ishii
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
| | - Yusuke Sunada
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505, Tokyo, Japan
- JST PRESTO, 4-1-8 Honcho, 332-0012, Kawaguchi, Saitama, Japan
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6
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Smith H, Pluth MD. Advances and Opportunities in H 2S Measurement in Chemical Biology. JACS AU 2023; 3:2677-2691. [PMID: 37885594 PMCID: PMC10598833 DOI: 10.1021/jacsau.3c00427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/02/2023] [Accepted: 09/08/2023] [Indexed: 10/28/2023]
Abstract
Hydrogen sulfide (H2S) is an important biological mediator across all kingdoms of life and plays intertwined roles in various disciplines, ranging from geochemical cycles to industrial processes. A common need across these broad disciplines is the ability to detect and measure H2S in complex sample environments. This Perspective focuses on key advances and opportunities for H2S detection and quantification that are relevant to chemical biology. Specifically, we focus on methods for H2S detection and quantification most commonly used in biological samples, including activity-based H2S probes, the methylene blue assay, the monobromobimane assay, and H2S-sensitive electrode measurements. Our goal is to help simplify what at first may seem to be an overwhelming array of detection and measurement choices, to articulate the strengths and limitations of individual techniques, and to highlight key unmet needs and opportunities in the field.
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Affiliation(s)
- Haley
M. Smith
- Department of Chemistry and
Biochemistry, Materials Science Institute, Knight Campus for Accelerating
Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Michael D. Pluth
- Department of Chemistry and
Biochemistry, Materials Science Institute, Knight Campus for Accelerating
Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403-1253, United States
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7
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Oliveri IP, Attinà A, Di Bella S. A Zinc(II) Schiff Base Complex as Fluorescent Chemosensor for the Selective and Sensitive Detection of Copper(II) in Aqueous Solution. SENSORS (BASEL, SWITZERLAND) 2023; 23:3925. [PMID: 37112266 PMCID: PMC10141078 DOI: 10.3390/s23083925] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
The development of chemosensors able to detect analytes in a variety of sample matrices through a low-cost, fast, and direct approach is of current interest in food, health, industrial, and environmental fields. This contribution presents a simple approach for the selective and sensitive detection of Cu2+ ions in aqueous solution based on a transmetalation process of a fluorescent substituted Zn(salmal) complex. Transmetalation is accompanied by relevant optical absorption changes and quenching of the fluorescence emission, leading to high selectivity and sensitivity of the chemosensor, with the advantage of not requiring any sample pretreatment or pH adjustment. Competitive experiments demonstrate a high selectivity of the chemosensor towards Cu2+ with respect to the most common metal cations as potential interferents. A limit of detection down to 0.20 μM and a dynamic linear range up to 40 μM are achieved from fluorometric data. By exploiting the fluorescence quenching upon formation of the copper(II) complex, simple paper-based sensor strips, visible to naked eyes under UV light, are used for the rapid, qualitative, and quantitative in situ detection of Cu2+ ions in aqueous solution over a wide concentration range, up to 10.0 mM, in specific environments, such as in industrial wastewater, where higher concentrations of Cu2+ ions can occur.
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Strianese M, Ferrara G, Vykhovanets V, Blal N, Guarnieri D, Landi A, Lamberti M, Peluso A, Pellecchia C. Sol-Gel Dipping Devices for H 2S Visualization. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23042023. [PMID: 36850620 PMCID: PMC9965526 DOI: 10.3390/s23042023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 05/14/2023]
Abstract
In this contribution we report the synthesis and full characterization, via a combination of different spectroscopies (e.g., 1H NMR, UV-vis, fluorescence, MALDI), of a new family of fluorescent zinc complexes with extended π-conjugated systems, with the final aim of setting up higher performance H2S sensing devices. Immobilization of the systems into a polymeric matrix for use in a solid-state portable device was also explored. The results provided proof-of-principle that the title complexes could be successfully implemented in a fast, simple and cost-effective H2S sensing device.
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9
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Ding YF, Wei YX, Li WD, Wang L, Li M, Dong WK. Construction of an Unprecedented Homodinuclear Copper(II) Salamo-Based Complex. RUSS J GEN CHEM+ 2023. [DOI: 10.1134/s1070363223020251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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10
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Strianese M, D'Auria GJ, Lamberti M, Landi A, Peluso A, Varriale A, D'Auria S, Pellecchia C. Salen, salan and salalen zinc(II) complexes in the interaction with HS -: time-resolved fluorescence applications. Dalton Trans 2023; 52:1357-1365. [PMID: 36632781 DOI: 10.1039/d2dt03730k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In the current work we investigate the route of interaction of a newly synthesized family of zinc complexes with HS- by a plethora of different spectroscopic techniques. A computational analysis on the time dependent density functional theory (TD-DFT) level explored the overall fluorescence properties of the title complexes and their different fluorescence responses to HS-. Time-resolved fluorescence experiments were also performed and highlight the great potential of the current systems to be implemented as HS- fluorescent sensors.
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Affiliation(s)
- Maria Strianese
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
| | - Gerard Joseph D'Auria
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
| | - Marina Lamberti
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
| | - Alessandro Landi
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
| | - Andrea Peluso
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
| | - Antonio Varriale
- Institute of Food Science, CNR Italy, 83100 Avellino, Italy.,URT-ISA, CNR at Department of Biology, University of Naples Federico II, 80126 Napoli, Italy
| | - Sabato D'Auria
- Department of Biology, Agriculture, and Food Sciences, National Research Council of Italy (CNR-DISBA), Piazzale Aldo Moro 7, 00185 Rome, Italy
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084, Fisciano (SA), Italy.
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11
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Lewis Acidic Zinc(II) Complexes of Tetradentate Ligands as Building Blocks for Responsive Assembled Supramolecular Structures. CHEMISTRY 2023. [DOI: 10.3390/chemistry5010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This review presents representative examples illustrating how the Lewis acidic character of the Zn(II) metal center in Zn(salen)-type complexes, as well as in complexes of other tetradentate ligands, and the nature of the medium govern their supramolecular aggregation, leading to the formation of a variety of supramolecular structures, either in solution or in the solid state. Stabilization of these Lewis acidic complexes is almost always reached through an axial coordination of a Lewis base, leading to a penta-coordinated square-pyramidal geometry around the metal center. The coverage is not exhaustive, mainly focused on their crystallographic structures, but also on their aggregation and sensing properties in solution, and on their self-assembled and responsive nanostructures, summarizing their salient aspects. The axial ligands can easily be displaced, either in solution or in the solid state, with suitable Lewis bases, thus being responsive supramolecular structures useful for sensing. This contribution represents the first attempt to relate some common features of the chemistry of different families of Zn(II) complexes of tetradentate ligands to their intrinsic Lewis acidic character.
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12
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Development of dual-fluorophore and dual-site multifunctional fluorescent probe for detecting HClO and H2S based on rhodamine-coumarin units. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Huang Y, Li X, Li WD, Dong WK. Experimental and theoretical investigation of a new non-symmetric salamo-like ligand and its tri-nuclear Zn(II) and Ni(II) complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Xie KF, Huang Y, Li SZ, Li LL, Dong WK. AN INVESTIGATION INTO THE IMPACT OF INTRODUCED THIOCYANATE ANIONS ON THE TRINUCLEAR Co(II) SALAMO-BASED COMPLEX. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622080078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Oliveri IP, Consiglio G, Munzi G, Failla S, Di Bella S. Deaggregation properties and transmetalation studies of a zinc(II) salen-type Schiff-base complex. Dalton Trans 2022; 51:11859-11867. [PMID: 35876090 DOI: 10.1039/d2dt01448c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This paper reports the synthesis and the deaggregation properties of a Lewis acidic Zn(II) salen-type Schiff-base complex derivative from diaminomaleonitrile and a systematic detailed study of its transmetalation with other metal ions in solution. In a solution of non-coordinating solvents, the complex is in a dimeric form, while in coordinating solvents or upon addition of a Lewis base it is stabilized as monomeric adducts. Experiments done in two solvents with different Lewis basicities indicate a major role of the stability of the starting adduct in transmetalation. Thus, using nitrate or perchlorate salts, acetonitrile solutions of the complex give an immediate and complete transmetalation with Cu2+, while with Co2+ and Ni2+ a much slower transmetalation rate is observed. Instead, using chloride salts a fast and complete transmetalation is observed for divalent ions of the first transition series (Mn2+, Fe2+, Co2+, Ni2+, Cu2+), indicating the role of the chloride in stabilizing the transition state of the transmetalation. On the other hand, DMF solutions of the complex are less prone to transmetalation, according with the greater basicity of the solvent and, hence, the greater stability of the related adducts with the complex. Therefore, the nature of the solvent and the counteranion allow controlling the transmetalation process of this Zn(II) Schiff-base complex.
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Affiliation(s)
- Ivan Pietro Oliveri
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Giuseppe Consiglio
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Gabriella Munzi
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Salvatore Failla
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
| | - Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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16
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Man LL, Tong L, Gan LL, Li RY, Mu HR, Dong WK. A N 2O 2-tetradentate dioxime fluorescence probe for highly efficient sensing of S 2– and solution discoloration detection of H 2S gas. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2088758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Li-Li Man
- Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou, Gansu, China
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Li Tong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Lu-Lu Gan
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Ruo-Yu Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Hao-Ran Mu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Wen-Kui Dong
- Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou, Gansu, China
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
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17
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Dilmen Portakal E, Kaya Y, Demirayak E, Karacan Yeldir E, Erçağ A, Kaya İ. Ni(II), Zn(II), and Fe(III) complexes derived from novel unsymmetrical salen-type ligands: preparation, characterization and some properties. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2070485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Eylem Dilmen Portakal
- Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Inorganic Chemistry Division, Istanbul, Turkey
| | - Yeliz Kaya
- Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Inorganic Chemistry Division, Istanbul, Turkey
| | - Emire Demirayak
- Istanbul University, Department of Chemistry, Inorganic Chemistry Division, Istanbul, Turkey
| | - Elif Karacan Yeldir
- Çanakkale Onsekiz Mart University, Faculty of Sciences and Arts, Department of Chemistry, Polymer Synthesis and Analysis Lab, Çanakkale, Turkey
| | - Ayşe Erçağ
- Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Inorganic Chemistry Division, Istanbul, Turkey
| | - İsmet Kaya
- Çanakkale Onsekiz Mart University, Faculty of Sciences and Arts, Department of Chemistry, Polymer Synthesis and Analysis Lab, Çanakkale, Turkey
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18
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Li LL, Feng SS, Zhang T, Wang L, Dong WK. Counteranion-solvent-dependent construction of two octahedral homopolynuclear Ni(II) complexes with a symmetrical multi-halogen-substituted bis(salamo)-based ligand. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120815] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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19
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Paper-Strip-Based Sensors for H 2S Detection: A Proof-of-Principle Study. SENSORS 2022; 22:s22093173. [PMID: 35590862 PMCID: PMC9103406 DOI: 10.3390/s22093173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 12/10/2022]
Abstract
In this work, the authors explored the interaction of a suite of fluorescent zinc complexes with H2S. The authors provide evidence that HS− binds the zinc center of all the complexes under investigation, allowing them to possibly function as sensors by a ‘coordinative-based’ approach. Naked-eye color changes occur when treating the systems with HS−, so the fluorescence responses are modulated by the presence of HS−, which has been related to a change in the energy level and coupling of excited states through a computational study. The results show the potential of the systems to function as HS−/H2S colorimetric and fluorescent sensors. Paper-strip-based sensing experiments foresee the potential of using this family of complexes as chemosensors of HS− in more complex biological fluids.
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Kurz H, Hils C, Timm J, Hörner G, Greiner A, Marschall R, Schmalz H, Weber B. Self-Assembled Fluorescent Block Copolymer Micelles with Responsive Emission. Angew Chem Int Ed Engl 2022; 61:e202117570. [PMID: 35129881 PMCID: PMC9310857 DOI: 10.1002/anie.202117570] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Indexed: 11/06/2022]
Abstract
Responsive fluorescent materials offer a high potential for sensing and (bio-)imaging applications. To investigate new concepts for such materials and to broaden their applicability, the previously reported non-fluorescent zinc(II) complex [Zn(L)] that shows coordination-induced turn-on emission was encapsulated into a family of non-fluorescent polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) diblock copolymer micelles leading to brightly emissive materials. Coordination-induced turn-on emission upon incorporation and ligation of the [Zn(L)] in the P4VP core outperform parent [Zn(L)] in pyridine solution with respect to lifetimes, quantum yields, and temperature resistance. The quantum yield can be easily tuned by tailoring the selectivity of the employed solvent or solvent mixture and, thus, the tendency of the PS-b-P4VP diblock copolymers to self-assemble into micelles. A medium-dependent off-on sensor upon micelle formation could be established by suppression of non-micelle-borne emission background pertinent to chloroform through controlled acidification indicating an additional pH-dependent process.
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Affiliation(s)
- Hannah Kurz
- Department of ChemistryInorganic Chemistry IVUniversity of BayreuthUniversitätsstrasse 3095447BayreuthGermany
| | - Christian Hils
- Macromolecular Chemistry and Bavarian Polymer InstituteUniversity of BayreuthUniversitätsstrasse 3095440BayreuthGermany
| | - Jana Timm
- Department of ChemistryPhysical Chemistry IIIUniversity of BayreuthUniversitätsstrasse 3095447BayreuthGermany
| | - Gerald Hörner
- Department of ChemistryInorganic Chemistry IVUniversity of BayreuthUniversitätsstrasse 3095447BayreuthGermany
| | - Andreas Greiner
- Macromolecular Chemistry and Bavarian Polymer InstituteUniversity of BayreuthUniversitätsstrasse 3095440BayreuthGermany
| | - Roland Marschall
- Department of ChemistryPhysical Chemistry IIIUniversity of BayreuthUniversitätsstrasse 3095447BayreuthGermany
| | - Holger Schmalz
- Macromolecular Chemistry and Bavarian Polymer InstituteUniversity of BayreuthUniversitätsstrasse 3095440BayreuthGermany
| | - Birgit Weber
- Department of ChemistryInorganic Chemistry IVUniversity of BayreuthUniversitätsstrasse 3095447BayreuthGermany
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21
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Kurz H, Hils C, Timm J, Hörner G, Greiner A, Marschall R, Schmalz H, Weber B. Selbstassemblierte fluoreszierende Blockcopolymer‐Mizellen mit responsiver Emission. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117570] [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)
- Hannah Kurz
- Institut für Chemie Anorganische Chemie IV Universität Bayreuth Universitätsstrasse 30 95447 Bayreuth Deutschland
| | - Christian Hils
- Macromolecular Chemistry and Bavarian Polymer Institute University of Bayreuth Universitätsstrasse 30 95440 Bayreuth Germany
| | - Jana Timm
- Institut für Chemie Physikalische Chemie III Universität Bayreuth Universitätsstrasse 30 95447 Bayreuth Deutschland
| | - Gerald Hörner
- Institut für Chemie Anorganische Chemie IV Universität Bayreuth Universitätsstrasse 30 95447 Bayreuth Deutschland
| | - Andreas Greiner
- Macromolecular Chemistry and Bavarian Polymer Institute University of Bayreuth Universitätsstrasse 30 95440 Bayreuth Germany
| | - Roland Marschall
- Institut für Chemie Physikalische Chemie III Universität Bayreuth Universitätsstrasse 30 95447 Bayreuth Deutschland
| | - Holger Schmalz
- Macromolecular Chemistry and Bavarian Polymer Institute University of Bayreuth Universitätsstrasse 30 95440 Bayreuth Germany
| | - Birgit Weber
- Institut für Chemie Anorganische Chemie IV Universität Bayreuth Universitätsstrasse 30 95447 Bayreuth Deutschland
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22
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Liu GH, Li M, Li LL, Bian RN, Dong WK. Sequential multiple-target chemosensor: Co 2+, Cu 2+, PPi, and HSˉ discrimination by a bis(half-salamo)-type probe. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2021.2012674] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Guo-Hua Liu
- Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou, Gansu, China
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Mei Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Li-Li Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Ruo-Nan Bian
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
| | - Wen-Kui Dong
- Key Laboratory of Yellow River Water Environment in Gansu Province, Lanzhou Jiaotong University, Lanzhou, Gansu, China
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China
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23
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OLIVERI IPP, Munzi G, Di Bella S. A simple approach based on transmetalation for the selective and sensitive colorimetric/fluorometric detection of copper(II) ions in drinking water. NEW J CHEM 2022. [DOI: 10.1039/d2nj03695a] [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
The search for feasible and efficient methods for sensing cations in the environment is a challenge of current scientific interest. Among colorimetric and fluorometric methods, those allowing a direct and...
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24
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Biradha K, Saha S, Maity K, Roy PK, Mandal M. Comparative Study of Nitro and Azide Functionalized Zn(II) based Coordination Polymers as Fluorescent Turn-on Probes for Rapid and Selective Detection of H2S in Living Cells. Chemistry 2021; 28:e202103830. [PMID: 34936721 DOI: 10.1002/chem.202103830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Indexed: 11/10/2022]
Abstract
Selective Detection of H 2 S in cellular system using fluorescent CPs/MOFs is of great scientific interest due to their outstanding aqueous stability, biocompatibility and real-time detection ability. Fabrication of such materials using complete biologically essential elements and applying them as an efficient biosensors is still quite challenging. In this context, we present two newly synthesized CPs containing biologically essential metal ion (Zn) and nitro/azido functional group on the framework to sense extracellular and intracellular H 2 S by reducing into respective amines. The CP- 1 containing the azide group acted as an efficient fluorencent turn-on probe with lowest detection limit (7.2 µM) and shortest response time (30 sec) among the Zn-based probes reported till date. Moreover, CP-1 exhibited green luminescence in live cells after imaging very low concentration of H 2 S, while the nitro analogue, CP-2, couldn't detect the target analyte due to it's framework disruption.
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Affiliation(s)
- Kumar Biradha
- Indian Institute of Technology, Chemistry, Department of Chemistry, 721320, Kharagpur, INDIA
| | - Subhajit Saha
- Indian Institute of Technology Kharagpur, Chemistry, INDIA
| | - Kartik Maity
- Indian Institute of Technology Kharagpur, Chemistry, INDIA
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25
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Strianese M, Brenna S, Attilio Ardizzoia G, Guarnieri D, Lamberti M, D'Auria I, Pellecchia C. Imidazo-pyridine-based zinc(II) complexes as fluorescent hydrogen sulfide probes. Dalton Trans 2021; 50:17075-17085. [PMID: 34779449 DOI: 10.1039/d1dt02489b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work we explore the interaction of HS- with a family of fluorescent zinc complexes. In particular we selected a family of complexes with N,O-bidentate ligands aiming at assessing whether the zinc-chelating ligand plays a role in influencing the reactivity of HS- with the complexes under investigation. Different experiments, performed by diverse spectroscopic techniques, provide evidence that HS- binds the zinc center of all the complexes included in this study. The results highlight the potential of the devised systems to be used as HS-/H2S fluorescent sensors via a coordinative-based approach. To shed light on the species formed in solution when HS-/H2S interacts with the title complexes and aiming to rationalize the photophysical properties of the sensing constructs, we performed a computational analysis based on the time dependent density functional theory (TD-DFT). Preliminary bio-imaging experiments were also performed and the results indicate the potential of this class of compounds as probes for the detection of H2S in living cells.
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Affiliation(s)
- Maria Strianese
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Stefano Brenna
- Dipartimento di Scienza e Alta tecnologia, Università dell'Insubria and CIRCC, via Valleggio, 9, 22100 Como, Italy
| | - G Attilio Ardizzoia
- Dipartimento di Scienza e Alta tecnologia, Università dell'Insubria and CIRCC, via Valleggio, 9, 22100 Como, Italy
| | - Daniela Guarnieri
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Marina Lamberti
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Ilaria D'Auria
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
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26
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Kurz H, Hörner G, Weser O, Li Manni G, Weber B. Quenched Lewis Acidity: Studies on the Medium Dependent Fluorescence of Zinc(II) Complexes. Chemistry 2021; 27:15158-15170. [PMID: 34431572 PMCID: PMC8596774 DOI: 10.1002/chem.202102086] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Indexed: 01/04/2023]
Abstract
Three new zinc(II) coordination units [Zn(1-3)] based on planar-directing tetradentate Schiff base-like ligands H2 (1-3) were synthesized. Their solid-state structures were investigated by single crystal X-ray diffraction, showing the tendency to overcome the square-planar coordination sphere by axial ligation. Affinity in solution towards axial ligation has been tested by extended spectroscopic studies, both in the absorption and emission mode. The electronic spectrum of the pyridine complex [Zn(1)(py)] has been characterized by MC-PDFT to validate the results of extended TD-DFT studies. Green emission of non-emissive solutions of [Zn(1-3)] in chloroform could be switched on in the presence of potent Lewis-bases. While interpretation in terms of an equilibrium of stacked/non-fluorescent and destacked/fluorescent species is in line with precedents from literature, the sensitivity of [Zn(1-3)] was greatly reduced. Results of a computation-based structure search allow to trace the hidden Lewis acidity of [Zn(1-3)] to a new stacking motif, resulting in a strongly enhanced stability of the dimers.
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Affiliation(s)
- Hannah Kurz
- Inorganic Chemistry IVUniversity of BayreuthUniversitätsstraße 3095447BayreuthGermany
| | - Gerald Hörner
- Inorganic Chemistry IVUniversity of BayreuthUniversitätsstraße 3095447BayreuthGermany
| | - Oskar Weser
- Max Planck Institute for Solid State ResearchHeisenbergstraße 170569StuttgartGermany
| | - Giovanni Li Manni
- Max Planck Institute for Solid State ResearchHeisenbergstraße 170569StuttgartGermany
| | - Birgit Weber
- Inorganic Chemistry IVUniversity of BayreuthUniversitätsstraße 3095447BayreuthGermany
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27
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Bezdek M, Luo SXL, Liu RY, He Q, Swager TM. Trace Hydrogen Sulfide Sensing Inspired by Polyoxometalate-Mediated Aerobic Oxidation. ACS CENTRAL SCIENCE 2021; 7:1572-1580. [PMID: 34584959 PMCID: PMC8461779 DOI: 10.1021/acscentsci.1c00746] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Indexed: 05/23/2023]
Abstract
A high-performance chemiresistive gas sensor is described for the detection of hydrogen sulfide (H2S), an acutely toxic and corrosive gas. The chemiresistor operates at room temperature with low power requirements potentially suitable for wearable sensors or for rapid in-field detection of H2S in settings such as pipelines and wastewater treatment plants. Specifically, we report chemiresistors based on single-walled carbon nanotubes (SWCNTs) containing highly oxidizing platinum-polyoxometalate (Pt-POM) selectors. We show that by tuning the vanadium content and thereby the oxidation reactivity of the constituent POMs, an efficient chemiresistive sensor is obtained that is proposed to operate by modulating CNT doping during aerobic H2S oxidation. The sensor shows exceptional sensitivity to trace H2S in air with a ppb-level detection limit, multimonth stability under ambient conditions, and high selectivity for H2S over a wide range of interferants, including thiols, thioethers, and thiophene. Finally, we demonstrate that the robust sensing material can be used to fabricate flexible devices by covalently immobilizing the SWCNT-P4VP network onto a polyimide substrate, further extending the potentially broad utility of the chemiresistors. The strategy presented herein highlights the applicability of concepts in molecular aerobic oxidation catalysis to the development of low-cost analyte detection technologies.
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28
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Li LL, Li P, Zhang T, Dong WK. Exploration of DFT and Hirshfeld analyses and fluorescence properties of three stable penta-coordinated binuclear Co(II) and Zn(II) bis(salamo)-based complexes. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115301] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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29
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A family of salamo-type trinuclear Co(II) and Ni(II) complexes: Structural characterization, Hirshfeld surface analysis and fluorescent properties. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115267] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Xu J, Xia X, Xia L, Dong J, Jiang Y, Sun F, Wu H. Syntheses, structures and fluorescence properties of two Ce/Zn-Ce complexes with an open-chain ether Schiff base ligand. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1954622] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jianhua Xu
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Xinzhao Xia
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Lixian Xia
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Jianping Dong
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Yuxuan Jiang
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Fugang Sun
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Huilu Wu
- School of Chemistry and chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
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31
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Strianese M, Pappalardo D, Mazzeo M, Lamberti M, Pellecchia C. The contribution of metalloporphyrin complexes in molecular sensing and in sustainable polymerization processes: a new and unique perspective. Dalton Trans 2021; 50:7898-7916. [PMID: 33999066 DOI: 10.1039/d1dt00841b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights the recent developments in the field of metalloporphyrins as optical probes for biologically relevant molecules, such as nitric oxide (NO) and hydrogen sulfide (H2S), and as catalysts for the preparation of sustainable polymers such as polyesters, by the ring-opening polymerization (ROP) of cyclic esters and the ring-opening co-polymerization (ROCOP) of epoxides and anhydrides, and polycarbonates by the chemical fixation of carbon dioxide (CO2). The great potential of porphyrins is mainly due to the possibility of making various synthetic modifications to the porphyrin ring, such as modifying the coordinated metal, peripheral substituents, or even the molecular skeleton. Due to the strict structure-property relationships, one can use porphyrinoids in several different applications such as, for instance, activation of molecular oxygen or catalysis of photosynthetic processes. These possibilities broaden the application of porphyrins in several different fields of research, further mimicking what nature does. In this context, here, we want to provide evidence for the great flexibility of metalloporphyrins by presenting an overview of results obtained by us and others in the research fields we are currently involved in. More specifically, we report a survey of our most significant achievements regarding their use as optical probes in the context of the results reported in the literature from other research groups, and of the use of porphyrin metal(iii) complexes as catalysts for sustainable polymerization processes. As for the optical probe section, in addition to the metalloporphyrins synthesized ad hoc in the laboratory, the present work also covers the natural proteins containing a porphyrin core.
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Affiliation(s)
- Maria Strianese
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Daniela Pappalardo
- Università del Sannio, Dipartimento di Scienze e Tecnologie, via de Sanctis, 82100, Benevento, Italy
| | - Mina Mazzeo
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Marina Lamberti
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Claudio Pellecchia
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
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Binding Properties of a Dinuclear Zinc(II) Salen-Type Molecular Tweezer with a Flexible Spacer in the Formation of Lewis Acid-Base Adducts with Diamines. INORGANICS 2021. [DOI: 10.3390/inorganics9060049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this paper we report the binding properties, by combined 1H NMR, optical absorption, and fluorescence studies, of a molecular tweezer composed of two Zn(salen)-type Schiff-base units connected by a flexible spacer, towards a series of ditopic diamines having a strong Lewis basicity, with different chain length and rigidity. Except for the 1,2-diaminoethane, in all other cases the formation of stable 1:1 Lewis acid-base adducts with large binding constants is demonstrated. For α,ω-aliphatic diamines, binding constants progressively increase with the increasing length of the alkyl chain, thanks to the flexible nature of the spacer and the parallel decreased conformational strain upon binding. Stable adducts are also found even for short diamines with rigid molecular structures. Given their preorganized structure, these latter species are not subjected to loss of degrees of freedom. The binding characteristics of the tweezer have been exploited for the colorimetric and fluorometric selective and sensitive detection of piperazine.
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33
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Di Bella S. Lewis acidic zinc(II) salen-type Schiff-base complexes: sensing properties and responsive nanostructures. Dalton Trans 2021; 50:6050-6063. [PMID: 33876173 DOI: 10.1039/d1dt00949d] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this frontier article some peculiar characteristics of Zn(salen)-type Schiff-base complexes are reviewed. The paper is mainly focused on the most recent and relevant achievements on responsive supramolecular nanostructures and sensing properties, both of them related to the Lewis acidic character of the ZnII centre in these molecular species, providing an interpretation of these features. The sensing properties of Zn(salen)-type complexes mainly originate from optical spectroscopic changes associated with the formation of the adducts upon addition of a Lewis base (analyte), either by deaggregation of dimeric species or displacement of the solvent coordinated to the metal centre. In both cases the direct sensing is related either to the Lewis acidic character of the complex as well as to the Lewis basicity of the analyte. The formation of responsive nanostructures with fluorescent, and/or vapochromic, mechanochromic, and thermochromic characteristics is driven by non-mutual intermolecular ZnO interactions, further stabilized by π-π stacking interactions and/or interdigitation of the alkyl side groups. The Lewis acidic character is not a prerogative of Zn(salen)-type complexes of tetradentate Schiff-bases. Many other classes of ZnII complexes can possess this property. A correct interpretation of their chemistry is certainly useful for further development of these classical coordination compounds as new molecular materials.
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Affiliation(s)
- Santo Di Bella
- Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy.
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34
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Li LL, Li M, Li P, Dong WK. Exploring three stable penta-coordinated multinuclear Cu(II) bis(salamo)-based complexes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Ejarque D, Calvet T, Font-Bardia M, Pons J. Steric crowding of a series of pyridine based ligands influencing the photophysical properties of Zn( II) complexes. CrystEngComm 2021. [DOI: 10.1039/d1ce00833a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The combination of α-acetamidocinnamic acid (HACA) and different N, N,N and N,N,N pyridines (dPy) leads to crowded Zn(ii) metal centers. The increasing bulkiness competes with the chelation enhanced effect (CHEF) in the resulting quantum yields.
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Affiliation(s)
- Daniel Ejarque
- Departament de Química, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Teresa Calvet
- Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí i Franquès s/n, 08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Unitat de Difracció de Raig-X, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís, 1-3, 08028 Barcelona, Spain
| | - Josefina Pons
- Departament de Química, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
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36
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Yao GX, Li P, Zhang JQ, Wang L, Liu H, Dong WK. A highly efficient yet stable salamo-type fluorescent chemosensor with multiple responses to Cu 2+ and S 2−. NEW J CHEM 2021. [DOI: 10.1039/d1nj02763h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new salamo-type compound H3L has been synthesized, and exploited as a chemosensor with multiple responses to Cu2+ and S2−. The crystal structure of the Cu(ii) complex has been determined by X-ray crystallographic analysis.
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Affiliation(s)
- Guang-Xu Yao
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
| | - Peng Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
| | - Jin-Qiang Zhang
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
| | - Li Wang
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
| | - Wen-Kui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China
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