1
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Tauchi D, Koida T, Nojima Y, Hasegawa M, Mazaki Y, Inagaki A, Sugiura KI, Nagaya Y, Tsubaki K, Shiga T, Nagata Y, Nishikawa H. Aggregation-induced circularly polarized phosphorescence of Pt(II) complexes with an axially chiral BINOL ligand. Chem Commun (Camb) 2023; 59:4004-4007. [PMID: 36917013 DOI: 10.1039/d2cc06198h] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
A pair of chiral Pt(II) complexes coordinated by simple BINOL and bipyridine ligands displaying aggregation-induced phosphorescence and circularly polarized luminescence were characterized by X-ray crystallography and absorption and emission spectroscopies. The emission of the powder sample was reddish whereas the thin film dispersed in PMMA (fPf = 1 wt%) exhibited a white emission.
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Affiliation(s)
- Daiki Tauchi
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Taiki Koida
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
| | - Yuki Nojima
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Masahi Hasegawa
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Yasuhiro Mazaki
- Graduate School of Science, Kitasato University, Kanagawa 252-0373, Japan
| | - Akiko Inagaki
- Faculty of Science and Technology, Seikei University, Tokyo, 180-8633, Japan
| | - Ken-Ichi Sugiura
- Graduate School of Science, Tokyo Metropolitan University, Tokyo, 192-0397, Japan
| | - Yuki Nagaya
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Kazunori Tsubaki
- Graduate School of Life and Environmental Science, Kyoto Prefectural University, Kyoto 606-8522, Japan
| | - Takuya Shiga
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
| | - Yuuya Nagata
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Hiroyuki Nishikawa
- Graduate School of Science and Engineering, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan.
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2
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Gaire S, Schrage BR, Nemykin VN, Ziegler CJ. Pyrazole and Indazole Semihemiporphyrazine Complexes of Rhenium Tricarbonyl: A Structure/Properties Study. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sanjay Gaire
- Department of Chemistry University of Akron Akron OH 44325 USA
| | - Briana R. Schrage
- Department of Chemistry University of Akron Akron OH 44325 USA
- Department of Chemistry University of Tennessee Knoxville TN 37996 USA
| | - Victor N. Nemykin
- Department of Chemistry University of Tennessee Knoxville TN 37996 USA
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3
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Pintus A, Arca M. 1,2-Diselenolene ligands and related metal complexes: Design, synthesis and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Fabre B, Camerel F, Ababou-Girard S. Photoactive silicon surfaces functionalized with high-quality and redox-active platinum diimine complex monolayers. NEW J CHEM 2022. [DOI: 10.1039/d1nj05805c] [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
Platinum diimine complexes can covalently be grafted onto oxide-free, hydrogen-terminated silicon(111) surfaces into clean and high-quality monolayers. The so modified surfaces offer great prospects as photocathodes for solar-driven electrocatalysis.
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Affiliation(s)
- Bruno Fabre
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Franck Camerel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Soraya Ababou-Girard
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes)-UMR 6251, F-35000 Rennes, France
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5
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Aragoni MC, Arca M, Binda M, Caltagirone C, Lippolis V, Natali D, Podda E, Sampietro M, Pintus A. Platinum diimine-dithiolate complexes as a new class of photoconducting compounds for pristine photodetectors: case study on [Pt(bipy)(Naph-edt)] (bipy = 2,2'-bipyridine; Naph-edt 2- = 2-naphthylethylene-1,2-dithiolate). Dalton Trans 2021; 50:7527-7531. [PMID: 34037042 DOI: 10.1039/d1dt01288f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The photoconducting properties of platinum diimine-dithiolate complex [Pt(bipy)(Naph-edt)] (1; bipy = 2,2'-bipyridine; Naph-edt2- = 2-naphthylethylene-1,2-dithiolate) were investigated. DFT calculations on a model assembly with four complex units suggest that the high external quantum efficency measured on a prototype photodetector correlates with the intermolecular character of electronic excitations in the visible region.
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Affiliation(s)
- M Carla Aragoni
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
| | - Massimiliano Arca
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
| | - Maddalena Binda
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Claudia Caltagirone
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
| | - Vito Lippolis
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
| | - Dario Natali
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy and Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - Enrico Podda
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
| | - Marco Sampietro
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy and Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - Anna Pintus
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, 09042 Monserrato (Cagliari), Italy.
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6
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Samiee S, Pouladzadeh A, Mahdavifar Z. Exploring the optical and nonlinear optical features of heteroleptic complexes with BODIPY and amido-BODIPY substitutions; A comparative theoretical study. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Mou WY, Li T, Xie B, Zhang DL, Lai C, Deng CL, Cao JX, Bai XX, Liu XQ. Neutral heteroleptic nickel complexes incorporating maleonitriledithiolate and bis(diphenylphosphanyl)amine as robust molecular electrocatalysts for hydrogen evolution. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Pintus A, Ambrosio L, Aragoni MC, Binda M, Coles SJ, Hursthouse MB, Isaia F, Lippolis V, Meloni G, Natali D, Orton JB, Podda E, Sampietro M, Arca M. Photoconducting Devices with Response in the Visible-Near-Infrared Region Based on Neutral Ni Complexes of Aryl-1,2-dithiolene Ligands. Inorg Chem 2020; 59:6410-6421. [PMID: 32302124 DOI: 10.1021/acs.inorgchem.0c00491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Metal bis(1,2-dithiolene) complexes belonging to the class [Ni(Ar-edt)2]x- [Ar-edt2- = arylethylene-1,2-dithiolate; Ar = phenyl, (1x-), 2-naphthyl (2x-); x = 0 and 1] were fully characterized by NMR, UV-visible-near-infrared (UV-vis-NIR), diffuse reflectance, and FT-IR spectroscopy, as well as cyclic voltammetry and single-crystal X-ray diffraction analysis. These complexes have emerged as new photoconducting materials that allowed for the development of a prototype of photodetectors with response in the vis-NIR region. The photodetecting devices showed in some cases quantum efficiencies orders of magnitude higher than those of previously reported 1,2-dithiolene systems.
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Affiliation(s)
- Anna Pintus
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Lucia Ambrosio
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - M Carla Aragoni
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Maddalena Binda
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Simon J Coles
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Michael B Hursthouse
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Francesco Isaia
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Vito Lippolis
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Giammarco Meloni
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Dario Natali
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy.,Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - James B Orton
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Enrico Podda
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Marco Sampietro
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy.,Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - Massimiliano Arca
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
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9
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Drosou M, Kamatsos F, Mitsopoulou CA. Recent advances in the mechanisms of the hydrogen evolution reaction by non-innocent sulfur-coordinating metal complexes. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01113g] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review comments on the homogeneous HER mechanisms for catalysts carrying S-non-innocent ligands in the light of experimental and computational data.
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Affiliation(s)
- Maria Drosou
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
| | - Fotios Kamatsos
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
| | - Christiana A. Mitsopoulou
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
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10
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Samiee S, Hossienpour P. Tuning the electronic and optical properties of Pt(diimine)(dithiolate) complexes through different anchoring groups; A DFT/TD-DFT study. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Samiee S, Hossienpour P. A comparative theoretical study on the optoelectronic and nonlinear optical properties of [Pt(bpy)(qdt)] derivatives with electron-donating and -withdrawing anchors. NEW J CHEM 2019. [DOI: 10.1039/c9nj02463h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A series of [Pt(bpy)(qdt)] {bpy = 2,2′-bipyridine; qdt = quinoxaline-2,3-dithiolate} derivatives was chosen to study the effect of structural modifications on the optoelectronic and nonlinear optical (NLO) properties of the molecules.
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Affiliation(s)
- Sepideh Samiee
- Department of Chemistry
- Faculty of Science
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
| | - Parisa Hossienpour
- Department of Chemistry
- Faculty of Science
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
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12
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Samiee S, Taghvaeian S. Geometrical structure, electronic and nonlinear optical properties of square-planar heteroleptic complexes containing bypridine and pyrazine dithiolate derivatives as dye-sensitized solar cell: A DFT study. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4626] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Sepideh Samiee
- Department of Chemistry, Faculty of Science; Shahid Chamran University of Ahvaz; Ahvaz Iran
| | - Samira Taghvaeian
- Department of Chemistry, Faculty of Science; Shahid Chamran University of Ahvaz; Ahvaz Iran
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13
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14
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Attar SS, Artizzu F, Marchiò L, Espa D, Pilia L, Casula MF, Serpe A, Pizzotti M, Orbelli-Biroli A, Deplano P. Uncommon Optical Properties and Silver-Responsive Turn-Off/On Luminescence in a Pt II Heteroleptic Dithiolene Complex. Chemistry 2018; 24:10503-10512. [PMID: 29767426 DOI: 10.1002/chem.201801697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Indexed: 11/10/2022]
Abstract
Complex [Pt(iPr2 pipdt)(Quinoxdt)] (iPr2 pipdt=1,4-diisopropyl-piperazine-2,3-dithione; Quinoxdt=[1,4]dithiino[2,3-b]quinoxaline-2,3-dithiolate) exhibits a remarkable green emission at 570 nm (room temperature), which is above the lowest excited state. The complex is characterized by negative solvatochromism as well as a high second-order polarizability. Addition of AgI ions induces 1) hypsochromic shift of the lowest frequencies and 2) reversible quenching of luminescence. The corresponding Ni and Pd complexes have also been prepared and investigated to assist interpretation of optical properties within the triad. Computational studies based on DFT and time-dependent DFT highlight the electronic properties of [Pt(iPr2 pipdt)(Quinoxdt)]. The preferential site of interaction between the Pt complex and incoming AgI is evidenced by the shape of the Fukui functions, pointing to the thiolic sulfur and platinum atoms as the most reactive sites towards a soft cation. Calculated optical properties are in agreement with experimental findings. This study sheds light on the structure-property relationship for this class of compounds.
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Affiliation(s)
- Salahuddin S Attar
- Department of Chemical and Soil Sciences, University of Cagliari, INSTM Research Unit, 09042, Monserrato (CA), Italy
| | - Flavia Artizzu
- L3-Luminescent Lanthanide Lab, Department of Chemistry, Ghent University, Krijgslaan 281-building S3, 9000, Gent, Belgium
| | - Luciano Marchiò
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 11/a, 43124, Parma, Italy
| | - Davide Espa
- Department of Chemical and Soil Sciences, University of Cagliari, INSTM Research Unit, 09042, Monserrato (CA), Italy
| | - Luca Pilia
- Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università di Cagliari, Via Marengo 2, 09123, Cagliari, Italy
| | - Maria F Casula
- Department of Chemical and Soil Sciences, University of Cagliari, INSTM Research Unit, 09042, Monserrato (CA), Italy
| | - Angela Serpe
- Dipartimento di Ingegneria Civile, Ambientale e Architettura, Università di Cagliari, Via Marengo 2, 09123, Cagliari, Italy
| | - Maddalena Pizzotti
- Department of Chemistry, INSTM Research Unit, University of Milan, Via C. Golgi 19, 20133, Milano, Italy
| | - Alessio Orbelli-Biroli
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), SmartMatLab Centre, CNR, Via C. Golgi 19, 20133, Milano, Italy
| | - Paola Deplano
- Department of Chemical and Soil Sciences, University of Cagliari, INSTM Research Unit, 09042, Monserrato (CA), Italy
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15
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Tkachov R, Stepien L, Grafe R, Guskova O, Kiriy A, Simon F, Reith H, Nielsch K, Schierning G, Kasinathan D, Leyens C. Polyethenetetrathiolate or polytetrathiooxalate? Improved synthesis, a comparative analysis of a prominent thermoelectric polymer and implications to the charge transport mechanism. Polym Chem 2018. [DOI: 10.1039/c8py00931g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Polymerisation of the “true monomer” results in a high quality product with improved and good reproducible characteristics.
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Affiliation(s)
- Roman Tkachov
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS)
- 01277 Dresden
- Germany
- Technische Universität Dresden
- Institute of Materials Science
| | - Lukas Stepien
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS)
- 01277 Dresden
- Germany
| | - Robert Grafe
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS)
- 01277 Dresden
- Germany
| | - Olga Guskova
- Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)
- 01069 Dresden
- Germany
| | - Anton Kiriy
- Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)
- 01069 Dresden
- Germany
| | - Frank Simon
- Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)
- 01069 Dresden
- Germany
| | - Heiko Reith
- Leibniz-Institut für Festkörper- und Werkstoffforschung (IFW)
- 01069 Dresden
- Germany
| | - Kornelius Nielsch
- Leibniz-Institut für Festkörper- und Werkstoffforschung (IFW)
- 01069 Dresden
- Germany
| | - Gabi Schierning
- Leibniz-Institut für Festkörper- und Werkstoffforschung (IFW)
- 01069 Dresden
- Germany
| | - Deepa Kasinathan
- Max-Planck Institute for Chemical Physics of Solids
- 01187 Dresden
- Germany
| | - Christoph Leyens
- Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS)
- 01277 Dresden
- Germany
- Technische Universität Dresden
- Institute of Materials Science
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16
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Cioncoloni G, Sproules S, Wilson C, Symes MD. Unprecedented Inequivalent Metal Coordination Environments in a Mixed-Ligand Dicobalt Complex. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Giacomo Cioncoloni
- WestCHEM; School of Chemistry; University of Glasgow; University Avenue G12 8QQ Glasgow United Kingdom
| | - Stephen Sproules
- WestCHEM; School of Chemistry; University of Glasgow; University Avenue G12 8QQ Glasgow United Kingdom
| | - Claire Wilson
- WestCHEM; School of Chemistry; University of Glasgow; University Avenue G12 8QQ Glasgow United Kingdom
| | - Mark D. Symes
- WestCHEM; School of Chemistry; University of Glasgow; University Avenue G12 8QQ Glasgow United Kingdom
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17
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Zarkadoulas A, Field MJ, Artero V, Mitsopoulou CA. Proton reduction reaction catalyzed by homoleptic nickel bis-1,2-dithiolate complexes: Experimental and theoretical mechanistic investigations. ChemCatChem 2017; 9:2308-2317. [PMID: 28670348 PMCID: PMC5490785 DOI: 10.1002/cctc.201601399] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Indexed: 01/01/2023]
Abstract
A series of homoleptic monoanionic nickel dithiolene complexes [Ni(bdt)2](NBu4), [Ni(tdt)2](NBu4), and [Ni(mnt)2](NBu4) containing the ligands benzene-1,2-dithiolate (bdt2-), toluene-3,4-dithiolate (tdt2-) and maleonitriledithiolate (mnt2-), respectively, have been employed as electrocatalysts in the hydrogen evolution reaction with trifluoroacetic acid as proton source in acetonitrile. All complexes were active catalysts with TONs reaching 113, 158 and 6 for [Ni(bdt)2](NBu4), [Ni(tdt)2](NBu4), and [Ni(mnt)2](NBu4), respectively. Faradaic yield for hydrogen evolution reaction reaches 88 % for 2- , which also displays the minimal overpotential requirement value (467 mV) within the series. Two pathways for H2 evolution can be hypothesized that differ on on the sequence of protonation and reduction steps. DFT calculations are in agreement with experimental data and indicate that protonation at sulfur follows reduction to the dianion. Hydrogen evolves from the direduced-diprotonated form via a highly distorted nickel hydride intermediate. The effects of acid strength and concentration in the hydrogen-evolving mechanism are also discussed.
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Affiliation(s)
- Athanasios Zarkadoulas
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece
| | - Martin J. Field
- DYNAMO/DYNAMOP, Institut de Biologie Structurale, UMR CNRS/Université Grenoble Alpes/CEA 5075, EPN Campus, 6 rue Jules Horowitz F-38000 Grenoble, France
| | - Vincent Artero
- Laboratory of Chemistry and Biology of Metals, Université Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, F-38000 Grenoble, France
| | - Christiana A. Mitsopoulou
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece
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18
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Attar S, Espa D, Artizzu F, Pilia L, Serpe A, Pizzotti M, Di Carlo G, Marchiò L, Deplano P. Optically Multiresponsive Heteroleptic Platinum Dithiolene Complex with Proton-Switchable Properties. Inorg Chem 2017; 56:6763-6767. [DOI: 10.1021/acs.inorgchem.7b00238] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Salahuddin Attar
- Dipartimento di
Scienze Chimiche e Geologiche and Unità di Ricerca INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
| | - Davide Espa
- Dipartimento di
Scienze Chimiche e Geologiche and Unità di Ricerca INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
| | - Flavia Artizzu
- Dipartimento di
Scienze Chimiche e Geologiche and Unità di Ricerca INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
| | - Luca Pilia
- Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università di Cagliari, Via Marengo 2, I09123 Cagliari, Italy
| | - Angela Serpe
- Dipartimento di
Scienze Chimiche e Geologiche and Unità di Ricerca INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
| | - Maddalena Pizzotti
- Dipartimento di Chimica
and Unità di Ricerca INSTM, Università di Milano, via Golgi
19, I20133 Milano, Italy
| | - Gabriele Di Carlo
- Dipartimento di Chimica
and Unità di Ricerca INSTM, Università di Milano, via Golgi
19, I20133 Milano, Italy
| | - Luciano Marchiò
- Dipartimento di Chimica, Università di Parma, Parco Area delle Scienze 17A, I43124 Parma, Italy
| | - Paola Deplano
- Dipartimento di
Fisica and Unità di Ricerca INSTM, Università di Cagliari, S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
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19
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Bushnell EA. A computational investigation into the catalytic activity of a diselenolene sulfite oxidase biomimetic complex. CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Molybdenum is the only 4d metal found in almost all life. One such molybdenum-containing enzyme is sulfite oxidase, which also contains the dithiolene-molybdopterin ligand. Sulfite oxidase is essential in the degradation of sulfur-containing compounds such as cysteine and methionine. Past work has shown parallels in the chemistry of dithiolene–metal and diselenolene–metal complexes. Thus, in this present work, the oxygen atom transfer mechanism for a diselenolene sulfite oxidase biomimetic complex was investigated using computational tools, the results of which were compared to the analogous dithiolene biomimetic complex. From the results obtained, the molybdenum-diselenolene sulfite oxidase biomimetic complex is able to catalyse the oxygen atom transfer and does so with a marginally lower value of ΔrG‡ than that for the analogous dithiolene complex. In particular, it was found that on average, the diselenolene complex had an activation energy 1.2 kJ mol–1 lower in energy than the analogous dithiolene complex. However, the calculated value of ΔrG suggests that the oxidation of sulfite is more favourable for the dithiolene complex where the average difference in reaction aqueous Gibbs reaction energy was –9.4 kJ mol–1 relative to the diselenolene complex. It is noted that with the use of D3 and D3BJ corrections in combination with the B3LYP functional, the barrier for oxygen atom transfer is lowered by more than 30.0 kJ mol–1 for both the diselenolene and dithiolene complexes. Such results suggest that to study such oxo-transfer reactions, the proper treatment of dispersion interaction is necessary.
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Affiliation(s)
- Eric A.C. Bushnell
- Department of Chemistry, Brandon University, 270-18th Street, Brandon, MB R7A 6A9, Canada
- Department of Chemistry, Brandon University, 270-18th Street, Brandon, MB R7A 6A9, Canada
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20
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Stace JJ, Ball P, Shingade V, Chatterjee S, Shiveley A, Fleeman WL, Staniszewski AJ, Krause JA, Connick WB. Kinetics of the methylation of a platinum(II) diimine dithiolate complex. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Zarkadoulas A, Field MJ, Papatriantafyllopoulou C, Fize J, Artero V, Mitsopoulou CA. Experimental and Theoretical Insight into Electrocatalytic Hydrogen Evolution with Nickel Bis(aryldithiolene) Complexes as Catalysts. Inorg Chem 2016; 55:432-44. [PMID: 26645557 PMCID: PMC5493980 DOI: 10.1021/acs.inorgchem.5b02000] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of neutral and monoanionic nickel dithiolene complexes with p-methoxyphenyl-substituted 1,2-dithiolene ligands have been prepared and characterized with physicochemical methods. Two of the complexes, the monoanion of the symmetric [Ni{S2C2(Ph-p-OCH3)2}2] (3(-)) with NBu4(+) as a counterion and the neutral asymmetric [Ni{S2C2(Ph)(Ph-p-OCH3)}2] (2), have been structurally characterized by single-crystal X-ray crystallography. All complexes have been employed as proton-reducing catalysts in N,N-dimethylformamide with trifluoroacetic acid as the proton source. The complexes are active catalysts with good faradaic yields, reaching 83% for 2 but relatively high overpotential requirements (0.91 and 1.55 V measured at the middle of the catalytic wave for two processes observed depending on the different routes of the mechanism). The similarity of the experimental data regardless of whether the neutral or anionic form of the complexes is used indicates that the neutral form acts as a precatalyst. On the basis of detailed density functional theory calculations, the proposed mechanism reveals two different main routes after protonation of the dianion of the catalyst in accordance with the experimental data, indicating the role of the concentration of the acid and the influence of the methoxy groups. Protonation at sulfur seems be more favorable than that at the metal, which is in marked contrast with the catalytic mechanism proposed for analogous cobalt dithiolene complexes.
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Affiliation(s)
- Athanasios Zarkadoulas
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece
| | - Martin J. Field
- DYNAMO/DYNAMOP, Institut de Biologie Structurale, UMR CNRS/Université Grenoble Alpes/CEA 5075, EPN Campus, 6 rue Jules Horowitz F-38000 Grenoble, France
| | | | - Jennifer Fize
- Laboratory of Chemistry and Biology of Metals, Université Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, F-38000 Grenoble, France
| | - Vincent Artero
- Laboratory of Chemistry and Biology of Metals, Université Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, F-38000 Grenoble, France
| | - Christiana A. Mitsopoulou
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou 157 71, Greece
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22
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Mitra J, Sarkar S. Photoinduced electron transfer from the oxo–MoIVselenolato complex to oxygen. NEW J CHEM 2016. [DOI: 10.1039/c5nj02494c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Electron transfer from the oxo–MoIV(selenolato) complex under visible light generates superoxide radicals concomitant to the oxidation of MoIV to MoV.
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Affiliation(s)
- Joyee Mitra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208 016
- India
| | - Sabyasachi Sarkar
- Department of Chemistry
- Indian Institute of Engineering Science & Technology Shibpur (IIEST)
- Howrah 711 103
- India
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23
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Zarkadoulas A, Koutsouri E, Kefalidi C, Mitsopoulou CA. Rhenium complexes in homogeneous hydrogen evolution. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Vovna VV, Korochentsev VV, Komissarov AA, L'vov IB, Myshakina NS. Electronic structure and photoelectron spectra of nickel (II) acetylacetonate and its thio- and amino-substituted analogues. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Pintus A, Aragoni MC, Isaia F, Lippolis V, Lorcy D, Slawin AMZ, Woollins JD, Arca M. On the Role of Chalcogen Donor Atoms in Diimine-Dichalcogenolate PtIISONLO Chromophores: Is It Worth Replacing Sulfur with Selenium? Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500777] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Papanikolaou P, Papadopoulos A, Hatzidimitriou A, Aslanidis P. Neutral mononuclear luminescent Pd(II) complexes with heterocyclic thiolate ligands and chelating phosphines. Structural and photophysical assignments. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Espa D, Pilia L, Marchiò L, Attar SS, Barsella A, Fort A, Mercuri ML, Serpe A, Deplano P. Structural changes in MII dithione/dithiolato complexes (M = Ni, Pd, Pt) on varying the dithione functionalization. CrystEngComm 2015. [DOI: 10.1039/c5ce00469a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Large differences in the crystal structures of the title triads, induced by interactions exchanged by the peripheral fragments of the ligands, have been found and described through the Hirshfeld surface analysis.
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Affiliation(s)
- Davide Espa
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
| | - Luca Pilia
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
- Dipartimento di Ingegneria Meccanica Chimica e dei Materiali
| | - Luciano Marchiò
- Dipartimento di Chimica
- Università di Parma
- I43100 Parma, Italy
| | - Salahuddin S. Attar
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
| | - Alberto Barsella
- Departement d'Optique ultra-rapide et Nanophotonique
- IPCMS-CNRS
- 67034 Strasbourg Cedex 2, France
| | - Alain Fort
- Departement d'Optique ultra-rapide et Nanophotonique
- IPCMS-CNRS
- 67034 Strasbourg Cedex 2, France
| | - Maria Laura Mercuri
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
| | - Angela Serpe
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
| | - Paola Deplano
- Dipartimento di Scienze Chimiche e Geologiche
- Università di Cagliari
- Unità di Ricerca dell'INSTM
- I09042 Monserrato-Cagliari, Italy
- Dipartimento di Fisica
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28
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Yzambart G, Fabre B, Roisnel T, Dorcet V, Ababou-Girard S, Meriadec C, Lorcy D. Assembly of Platinum Diimine Dithiolate Complexes onto Hydrogen-Terminated Silicon Surfaces. Organometallics 2014. [DOI: 10.1021/om5000369] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Gilles Yzambart
- Institut des Sciences Chimiques
de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Bruno Fabre
- Institut des Sciences Chimiques
de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Thierry Roisnel
- Institut des Sciences Chimiques
de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques
de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Soraya Ababou-Girard
- Institut de Physique de Rennes, Département
Matériaux et Nanosciences, Campus de Beaulieu, UMR 6251 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Cristelle Meriadec
- Institut de Physique de Rennes, Département
Matériaux et Nanosciences, Campus de Beaulieu, UMR 6251 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Dominique Lorcy
- Institut des Sciences Chimiques
de Rennes, UMR 6226 CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
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29
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Espa D, Pilia L, Makedonas C, Marchiò L, Mercuri ML, Serpe A, Barsella A, Fort A, Mitsopoulou CA, Deplano P. Role of the acceptor in tuning the properties of metal [M(II) = Ni, Pd, Pt] dithiolato/dithione (donor/acceptor) second-order nonlinear chromophores: combined experimental and theoretical studies. Inorg Chem 2014; 53:1170-83. [PMID: 24405208 DOI: 10.1021/ic402738b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mixed-ligand complexes [M(II)(Et2dazdt)(mnt)] (M = Ni, 1; Pd, 2; Pt, 3) [Et2dazdt = N,N'-diethyl-perhydrodiazepine-2,3-dithione; mnt = maleonitrile-2,3-dithiolate] have been prepared and fully characterized. X-ray diffractometric studies on 1-3 (the structure of 1 was already known) show that the crystals are isostructural (triclinic, P-1), and two independent molecular entities are present in the unit cell. These entities differ in the orientation of the ethyl substituents with respect to the epta-atomic ring. In the C2S2MS2C2 dithiolene core the four sulfur atoms define a square-planar coordination environment of the metal where the M-S bond distances involving the two ligands are similar, while the C-S bond distances in the C2S2 units exhibit a significant difference in Et2dazdt (dithione) and mnt (dithiolato) ligands. 1-3 show in the visible region one or two moderately strong absorption peaks, having ligand-to-ligand charge-transfer (CT) character with some contribution of the metal, and show negative solvatochromism and molecular quadratic optical nonlinearity, which was determined by the EFISH (electric-field-induced second-harmonic generation) technique. These complexes are redox active and show two reversible reduction waves and one irreversible oxidation wave. Theoretical calculations based on DFT and TD-DFT calculations on complexes 1-3 as well as on [Pt(Bz2pipdt)(mnt)] (4) and [Pt(Bz2pipdt)(dmit)] (5) highlight the factors which affect the optical properties of these second-order redox-active NLO chromophores. Actually, the torsion angle of the dithione system (δ2) inversely correlates either with the oscillator strengths of the main transition of the complexes or with their beta values. The high beta value of 5 can be attributed both to its lowest torsion angles and to the extent of the π system of its dithiolate ligand, dmit.
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Affiliation(s)
- Davide Espa
- Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari , S.S. 554-Bivio per Sestu, I09042 Monserrato-Cagliari, Italy
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30
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Pintus A, Aragoni MC, Coles SJ, Coles (née Huth) SL, Isaia F, Lippolis V, Musteti AD, Teixidor F, Viñas C, Arca M. New PtII diimine–dithiolate complexes containing a 1,2-dithiolate-1,2-closo-dicarbadodecarborane: an experimental and theoretical investigation. Dalton Trans 2014; 43:13649-60. [DOI: 10.1039/c4dt01929f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of solvatochromic diimine–dithiolate complexes [Pt(N^N)(dtoc)] (dtoc2− = 1,2-dithiolate-1,2-closo-dicarbadodecaborane) is reported.
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Affiliation(s)
- Anna Pintus
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato, Italy
| | - M. Carla Aragoni
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato, Italy
| | - Simon J. Coles
- Department of Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton SO17 1BJ, UK
| | - Susanne L. Coles (née Huth)
- Department of Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton SO17 1BJ, UK
| | - Francesco Isaia
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato, Italy
| | - Vito Lippolis
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato, Italy
| | - Ana-Daniela Musteti
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- 08193 Bellaterra, Spain
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- 08193 Bellaterra, Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- 08193 Bellaterra, Spain
| | - Massimiliano Arca
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- 09042 Monserrato, Italy
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31
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Kumar A, Auvinen S, Trivedi M, Chauhan R, Alatalo M. Synthesis, characterization and light harvesting properties of nickel(II) diimine dithiolate complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:106-110. [PMID: 23831984 DOI: 10.1016/j.saa.2013.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/02/2013] [Accepted: 06/05/2013] [Indexed: 06/02/2023]
Abstract
Four Ni(II) diimine dithiolato complexes viz. [Ni{(S2C2Ph2)(1,10-Phenanthroline)}] (2), [Ni{(S2C2Ph2)(3,3'-dicarboxy-2,2'-bipyridyl)}] (3), [Ni{(S2C2Ph2)(4,4'-dicarboxy-2,2'-bipyridyl)}] (4) [Ni{(S2C2Ph2)(2,2'-bipyridyl)}] (5) have been prepared from [Ni(S2C2Ph2)2] (1) and characterized by microanalyses, UV-Vis, IR, (1)H and (13)C NMR. Attempts have been made to explain the nature of charge transfer in these molecules through quantum chemical calculations. The light harvesting properties of all the compounds have been studied using these compounds as photosensitizers in TiO2-based DSSC. The change in position of anchoring group on diimine derivative leads to different structural, electronic and light harvesting properties about the Ni(II) diimine dithiolate dyes.
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Affiliation(s)
- Abhinav Kumar
- Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226 007, India.
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32
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Mitra J, Sarkar S. Oxo-Mo(IV)(dithiolene)thiolato complexes: analogue of reduced sulfite oxidase. Inorg Chem 2013; 52:3032-42. [PMID: 23461669 DOI: 10.1021/ic302485c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A series of [Mo(IV)O(mnt)(SR)(N-N)](-) (mnt = maleonitriledithiolate; R = Ph, nap, p-Cl-Ph, p-CO2H-Ph, and p-NO2-Ph; N-N = 2,2'-bipyridine (bipy) and 1,10-phenanthroline (phen)) complexes analogous to the reduced active site of enzymes of the sulfite oxidase family has been synthesized and their participation in electron transfer reactions studied. Equatorial thiolate and dithiolene ligations have been used to closely simulate the three sulfur coordinations present in the native molybdenum active site. These synthetic analogues have been shown to participate in electron transfer via a pentavalent EPR-active Mo(V) intermediate with minimal structural change as observed electrochemically by reversible oxidative responses. The role of the redox-active dithiolene ligand as an electron transfer gate between external oxidants and the molybdenum center could be envisaged in one of the analogue systems where the initial transient EPR signal with <g> = 2.008 is replaced by the appearance of a typical Mo(V)-centered EPR (<g> = 1.976) signal. The appearance of such a ligand-based transient radical at the initial stage has been supported by the ligand-centered frontier orbital from DFT calculation. A stepwise rationale has been provided by computational study to show that the coupled effects of the diimine bite angle and the thiolato dihedral angle determine the metal- or ligand-based frontier orbital occupancy. DFT calculation has further supported the similarity between the reduced, semireduced, and oxidized resting state of the molybdenum center in Moco of SO with the synthesized complexes and their corresponding one-electron and fully oxidized species.
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Affiliation(s)
- Joyee Mitra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
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33
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Lu Z, Abbina S, Sabin JR, Nemykin VN, Du G. Unexpected Formation of Chiral Pincer CNN Nickel Complexes with β-Diketiminato Type Ligands via C–H Activation: Synthesis, Properties, Structures, and Computational Studies. Inorg Chem 2013; 52:1454-65. [DOI: 10.1021/ic3021904] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhengliang Lu
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop
9024, Grand Forks, North Dakota 58202, United States
| | - Srinivas Abbina
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop
9024, Grand Forks, North Dakota 58202, United States
| | - Jared R. Sabin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Victor N. Nemykin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, United States
| | - Guodong Du
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop
9024, Grand Forks, North Dakota 58202, United States
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Mitra J, Sarkar S. Modelling the reduced xanthine oxidase in active sulfo and inactive desulfo forms. Dalton Trans 2013; 42:3050-8. [DOI: 10.1039/c2dt32309e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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35
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A perspective on solar energy conversion and water photosplitting by dithiolene complexes. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.04.016] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Pintus A, Aragoni MC, Bellec N, Devillanova FA, Lorcy D, Isaia F, Lippolis V, Randall RAM, Roisnel T, Slawin AMZ, Woollins JD, Arca M. Structure-Property Relationships in PtII Diimine-Dithiolate Nonlinear Optical Chromophores Based on Arylethylene-1,2-dithiolate and 2-Thioxothiazoline-4,5-dithiolate. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200346] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Espa D, Pilia L, Marchiò L, Pizzotti M, Robertson N, Tessore F, Mercuri ML, Serpe A, Deplano P. Electrochromic second-order NLO chromophores based on MII (M = Ni, Pd, Pt) complexes with diselenolato–dithione (donor–acceptor) ligands. Dalton Trans 2012; 41:12106-13. [DOI: 10.1039/c2dt31537h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Pilia L, Espa D, Barsella A, Fort A, Makedonas C, Marchiò L, Mercuri ML, Serpe A, Mitsopoulou CA, Deplano P. Combined experimental and theoretical study on redox-active d8 metal dithione-dithiolato complexes showing molecular second-order nonlinear optical activity. Inorg Chem 2011; 50:10015-27. [PMID: 21939192 DOI: 10.1021/ic2007765] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Synthesis, characterization, NLO properties, and theoretical studies of the mixed-ligand dithiolene complexes of the nickel triad [M(II)(Bz(2)pipdt)(mnt)] (Bz(2)pipdt = 1,4-dibenzyl-piperazine-3,2-dithione, mnt = maleonitriledithiolato, M(II) = Ni, 1, Pd, 2, Pt, 3) are reported. Molecular structural characterization of 1-3 points out that four sulfur atoms are in a slightly distorted square-planar geometry. While the M-S bond distances are only slightly different, comparison of the C-C and C-S bonds in the C(2)S(2)MS(2)C(2) core allows us to point out a significant difference between the C-C and the C-S distances in Bz(2)pipdt and mnt. These findings suggest assigning a dithiolato character to mnt (pull ligand) and a dithione one (push ligand) to Bz(2)pipdt. Cyclic voltammetry of 1-3 exhibits two reversible reduction waves and a broad irreversible oxidation wave. These complexes are characterized in the visible region by a peak of moderately strong intensity, which undergoes negative solvatochromism. The molecular quadratic optical nonlinearities were determined by the EFISH technique, which provided the following values μβ(λ) (10(-48) esu) = -1436 (1), -1450 (2), and -1950 (3) converted in μβ(0) (10(-48) esu) = -463 (1), -684 (2), and -822 (3), showing that these complexes exhibit large negative second-order polarizabilities whose values depend on the metal, being highest for the Pt compound. DFT and TD-DFT calculations on 1-3 allow us to correlate geometries and electronic structures. Moreover, the first molecular hyperpolarizabilities have been calculated, and the results obtained support that the most appealing candidate as a second-order NLO chromophore is the platinum compound. This is due to (i) the most extensive mixture of the dithione/metal/dithiolato orbitals, (ii) the influence of the electric field of the solvent on the frontier orbitals that maximizes the difference in dipole moments between the excited and the ground state, and (iii) the largest oscillator strength in the platinum case vs nickel and palladium ones.
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Affiliation(s)
- Luca Pilia
- Dipartimento di Chimica Inorganica ed Analitica, Università di Cagliari, I-09042 Monserrato (Cagliari) Italy
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Paretzki A, Das HS, Weisser F, Scherer T, Bubrin D, Fiedler J, Nycz JE, Sarkar B. Invariant Oxidation State of Copper but not of Ruthenium in Complexes with Noninnocent N-(2-Methyl-5,8-dioxo-5,8-dihydroquinolin-7-yl)acetamide: A Combined Structural, Electrochemical and Spectroelectrochemical Investigation. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Espa D, Pilia L, Marchiò L, Mercuri ML, Serpe A, Barsella A, Fort A, Dalgleish SJ, Robertson N, Deplano P. Redox-switchable chromophores based on metal (Ni, Pd, Pt) mixed-ligand dithiolene complexes showing molecular second-order nonlinear-optical activity. Inorg Chem 2011; 50:2058-60. [PMID: 21288030 DOI: 10.1021/ic102343g] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and full characterization of the redox-active nickel triad mixed-ligand dithiolene complexes based on Bz(2)pipdt = 1,4-dibenzylpiperazine-3,2-dithione and dmit = 2-thioxo-1,3-dithiole-4,5-dithiolate ligands are reported. These complexes show a reversibly bleacheable solvatochromic peak and a remarkably high negative molecular first hyperpolarizability, whose values depend on the metal being highest for the platinum(II) compound.
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Affiliation(s)
- Davide Espa
- Dipartimento di Chimica Inorganica ed Analitica, Università di Cagliari, I-09042 Monserrato, Cagliari, Italy
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Aragoni MC, Arca M, Devillanova FA, Isaia F, Lippolis V, Pintus A. Gold(III) Complexes of Asymmetrically Aryl-Substituted 1,2-Dithiolene Ligands Featuring Potential-Controlled Spectroscopic Properties: An Insight into the Electronic Properties of bis(Pyren-1-yl-ethylene-1,2-dithiolato)Gold(III). Chem Asian J 2010; 6:198-208. [DOI: 10.1002/asia.201000525] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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