1
|
Liu Q, Gao J, Zhang Y, Liu X, Zhang X, Lin Q, Zeng W, Zhou Z. A trans-ortho asymmetrically di-strapped metalloporphyrin integrating three key structural features of ligand in heme. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
|
2
|
Deka R, Sarkar A, Butcher RJ, Singh HB. Availing the ambiphilicity of an organotellurenyl cation for the synthesis of platinum(II)‐based carboxylate‐bridged heterobimetallic complex: Structure and bonding analysis. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200403] [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)
- Rajesh Deka
- Indian Institute of Technology Bombay Chemistry Chemistry DepartmentIndia Institute of Technology Bombay 400076 Mumbai INDIA
| | - Arup Sarkar
- Indian Institute of Technology Bombay Chemistry INDIA
| | | | | |
Collapse
|
3
|
Barakat W, Hijazi I, Roisnel T, Dorcet V, Le Gac S, Boitrel B. Stereoselective formation of bismuth complexes by transmetalation of lead with adaptable overhanging carboxylic acid 5,10-strapped porphyrins. CR CHIM 2021. [DOI: 10.5802/crchim.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Mao Q, Das PK, Le Gac S, Boitrel B, Dorcet V, Oohora K, Hayashi T, Kitagishi H. Functional Myoglobin Model Composed of a Strapped Porphyrin/Cyclodextrin Supramolecular Complex with an Overhanging COOH That Increases O 2/CO Binding Selectivity in Aqueous Solution. Inorg Chem 2021; 60:12392-12404. [PMID: 34319113 DOI: 10.1021/acs.inorgchem.1c01628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A water-soluble strapped iron(III)tetraarylporphyrin (FeIIIPor-1) bearing two propylpyridinium groups at the side chains and a carboxylic acid group at the overhanging position of the strap was synthesized to mimic the function of myoglobin with the distal polar functionality in aqueous solution. FeIIIPor-1 forms a stable 1:1 inclusion complex with a per-O-methylated β-cyclodextrin dimer having a pyridine linker (Py3OCD), providing a hydrophobic environment and a proximal fifth ligand to stabilize the O2-complex. The ferrous complex (FeIIPorCD-1) binds both O2 and CO in aqueous solution. The O2 and CO binding affinities (P1/2O2 and P1/2CO) and half-life time (t1/2) of the O2 complex of FeIIPorCD-1 are 6.3 and 0.021 Torr, and 7 h, respectively, at pH 7 and 25 °C. The control compound without the strap structure (FeIIPorCD-2) has similar oxygen binding characteristics (P1/2O2 = 8.0 Torr), but much higher CO binding affinity (P1/2CO = 3.8 × 10-4 Torr), and longer t1/2 (30 h). The O2 and CO kinetics indicate that the strapped structure in FeIIPorCD-1 inhibits the entrance of these gaseous ligands into the iron(II) center, as evidenced by lower konO2 and konCO values. Interestingly, the CO complex of FeIIPorCD-1 is significantly destabilized (relatively larger koffCO), while the koffO2 value is much smaller than that of FeIIPorCD-2, resulting in significantly increased O2/CO selectivity (reduced M value, where M = P1/2O2/P1/2CO = 320) in FeIIPorCD-1 compared to FeIIPorCD-2 (M = 21000).
Collapse
Affiliation(s)
- Qiyue Mao
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe-city, Kyoto 610-0321, Japan
| | - Pradip K Das
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Stéphane Le Gac
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques de Rennes, Université Rennes, CNRS, UMR 6226, Rennes F-35000, France
| | - Koji Oohora
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Japan
| | - Takashi Hayashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Japan
| | - Hiroaki Kitagishi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe-city, Kyoto 610-0321, Japan
| |
Collapse
|
5
|
Pandey AK, Usman M, Rath SP. Hg···Hg···Hg Interaction Stabilizes Unusual Trinuclear Double Sandwich Structure of Mercury(II) Porphyrins. Inorg Chem 2020; 59:12988-12993. [DOI: 10.1021/acs.inorgchem.0c01627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anjani Kumar Pandey
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Mohammad Usman
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Sankar Prasad Rath
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| |
Collapse
|
6
|
Barakat W, Hijazi I, Roisnel T, Dorcet V, Boitrel B, Le Gac S. Adaptable Overhanging Carboxylic Acid Porphyrins: Towards Molecular Assemblies through Unusual Coordination Modes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wael Barakat
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 Rennes F‐35000 France
| | - Ismail Hijazi
- Faculty of Arts and Sciences Lebanese International University LIU/BIU PO Box 146404 Beirut Lebanon
- Faculty of Sciences Lebanese University Beirut Lebanon
| | - Thierry Roisnel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 Rennes F‐35000 France
| | - Vincent Dorcet
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 Rennes F‐35000 France
| | - Bernard Boitrel
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 Rennes F‐35000 France
| | - Stéphane Le Gac
- Univ Rennes CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226 Rennes F‐35000 France
| |
Collapse
|
7
|
Maeda C, Mitsuzane M, Ema T. Chiral Bifunctional Metalloporphyrin Catalysts for Kinetic Resolution of Epoxides with Carbon Dioxide. Org Lett 2019; 21:1853-1856. [PMID: 30810044 DOI: 10.1021/acs.orglett.9b00447] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chiral binaphthyl-strapped Zn(II) porphyrins with triazolium halide units were synthesized as bifunctional catalysts for kinetic resolution of epoxides with CO2. Several catalysts were screened by changing the linker length and nucleophilic counteranions, and the optimized catalyst accelerated the enantioselective reaction at ambient temperature to produce optically active cyclic carbonates and epoxides.
Collapse
Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , Tsushima, Okayama 700-8530 , Japan
| | - Mayato Mitsuzane
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , Tsushima, Okayama 700-8530 , Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology , Okayama University , Tsushima, Okayama 700-8530 , Japan
| |
Collapse
|
8
|
Le Gac S, Ndoyom V, Fusaro L, Dorcet V, Boitrel B. Hg II -Mediated Tl I -to-Tl III Oxidation in Dynamic Pb II /Tl Porphyrin Complexes. Chemistry 2019; 25:845-853. [PMID: 30412647 DOI: 10.1002/chem.201804713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/05/2018] [Indexed: 11/11/2022]
Abstract
Compared with their purely organic counterparts, molecular switches that are based on metal ion translocations have been underexplored, and more particularly, it remains challenging to control the translocation of several particles in multisite receptors. Recently, bimetallic complexes that undergo double translocation processes have been developed with bis-strapped porphyrin ligands. To implement a redox control for these systems, we have investigated the formation of heterobimetallic lead/thallium complexes, with thallium in the +I and +III oxidation states. Two different complexes were characterized: 1) a PbII /TlI complex, in which both metal ions interact with the N-core on its different sides, and 2) a PbII /TlIII complex with TlIII selectively bound to the N-core and PbII selectively bound to the strap opposite to TlIII . These two complexes undergo interconversion between their two degenerate forms (same coordination of the metal ions but on opposite sides) by different intra or intermolecular translocation pathways. In addition, conversion of the PbII /TlI complex into its PbII /TlIII counterpart was achieved by addition of a stoichiometric amount of HgII salt as a sacrificial electron acceptor. These results further contribute to the elaboration of devices that feature redox-controlled compartmentalized double translocations.
Collapse
Affiliation(s)
- Stéphane Le Gac
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, 35000, France
| | - Victoria Ndoyom
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, 35000, France
| | - Luca Fusaro
- Technological Platform PC2, University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, 35000, France
| | - Bernard Boitrel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, 35000, France
| |
Collapse
|
9
|
Maeda C, Ogawa K, Sadanaga K, Takaishi K, Ema T. Chiroptical and catalytic properties of doubly binaphthyl-strapped chiral porphyrins. Chem Commun (Camb) 2019; 55:1064-1067. [DOI: 10.1039/c8cc09114e] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Doubly (R)-binaphthyl-strapped porphyrins with methylene chains were synthesized.
Collapse
Affiliation(s)
- Chihiro Maeda
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Kanae Ogawa
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Kosuke Sadanaga
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Kazuto Takaishi
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| | - Tadashi Ema
- Division of Applied Chemistry
- Graduate School of Natural Science and Technology
- Okayama University
- Tsushima
- Japan
| |
Collapse
|
10
|
Ruffin H, Nyame Mendendy Boussambe G, Roisnel T, Dorcet V, Boitrel B, Le Gac S. Tren-Capped Hexaphyrin Zinc Complexes: Interplaying Molecular Recognition, Möbius Aromaticity, and Chirality. J Am Chem Soc 2017; 139:13847-13857. [DOI: 10.1021/jacs.7b07559] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hervé Ruffin
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Gildas Nyame Mendendy Boussambe
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Thierry Roisnel
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Stéphane Le Gac
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| |
Collapse
|
11
|
Najjari B, Roisnel T, Boitrel B. Structural analysis of a dimeric trinuclear zinc(II) complex based on a preorganized yet flexible strap porphyrin. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We report the solid-state structure of an unexpected trinuclear zinc dimeric porphyrin complex resulting of zinc insertion into a single strap porphyrin. The latter bears an overhanging carboxylic acid which usually interacts with metal cations either in out-of-plane (OOP) or in hanging-atop (HAT) coordination mode by changing its location above the porphyrin coordination site. However, in the present studies, the overhanging carboxylic group acts as a bidentate ligand and binds the OOP-bound zinc cation together with another zinc cation bridging two porphyrin units.
Collapse
Affiliation(s)
- Btissam Najjari
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes1, 35042 Rennes Cedex, France
| | - Thierry Roisnel
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes1, 35042 Rennes Cedex, France
| | - Bernard Boitrel
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes1, 35042 Rennes Cedex, France
| |
Collapse
|
12
|
Koepf M, Bergkamp JJ, Teillout AL, Llansola-Portoles MJ, Kodis G, Moore AL, Gust D, Moore TA. Design of porphyrin-based ligands for the assembly of [d-block metal : calcium] bimetallic centers. Dalton Trans 2017; 46:4199-4208. [DOI: 10.1039/c6dt04647a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A secondary binding-site for alkaline-earth cations is introduced on a porphyrin platform to obtain competent bitopicN,O-ligands.
Collapse
Affiliation(s)
- Matthieu Koepf
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | | | | | | | - Gerdenis Kodis
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Ana L. Moore
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Devens Gust
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| | - Thomas A. Moore
- School of Molecular Sciences
- Arizona State University
- Tempe
- USA
| |
Collapse
|
13
|
Levet V, Rosière R, Merlos R, Fusaro L, Berger G, Amighi K, Wauthoz N. Development of controlled-release cisplatin dry powders for inhalation against lung cancers. Int J Pharm 2016; 515:209-220. [DOI: 10.1016/j.ijpharm.2016.10.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/07/2016] [Accepted: 10/08/2016] [Indexed: 01/15/2023]
|
14
|
Le Gac S, Boitrel B. Structurally characterized bimetallic porphyrin complexes of Pb, Bi, Hg and Tl based on unusual coordination modes. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616300068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This minireview highlights the unusual coordination geometries observed in bimetallic complexes of mercury, thallium, lead and bismuth. These bimetallic complexes remain scarce and through an analysis of their X-ray structures, the various structural features that favorise them will be underlined.
Collapse
Affiliation(s)
- Stéphane Le Gac
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes1, F-35042 Rennes Cedex, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, Université de Rennes1, F-35042 Rennes Cedex, France
| |
Collapse
|
15
|
Ndoyom V, Fusaro L, Roisnel T, Gac SL, Boitrel B. Spontaneous Tl(i)-to-Tl(iii) oxidation in dynamic heterobimetallic Hg(ii)/Tl(i) porphyrin complexes. Chem Commun (Camb) 2016; 52:517-20. [DOI: 10.1039/c5cc07828h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Strapped heterobimetallic Hg(ii)/Tl(i) porphyrin complexes undergo spontaneous Tl(i)-to-Tl(iii) oxidation, providing a new opportunity to tune metal ion translocations in bimetallic porphyrin systems.
Collapse
Affiliation(s)
- Victoria Ndoyom
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| | - Luca Fusaro
- Unité de Chimie des Nanomatériaux (CNANO)
- Université de Namur
- B-5000 Namur
- Belgium
| | - Thierry Roisnel
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| | - Stéphane Le Gac
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| | - Bernard Boitrel
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| |
Collapse
|
16
|
Le Gac S, Boitrel B. Compartmentalized vs. non-compartmentalized translocations in metal porphyrin complexes. NEW J CHEM 2016. [DOI: 10.1039/c5nj03120f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Strapped porphyrin ligands exhibit instantaneous and easy-to-control formation of various bimetallic species featuring new coordination modes and dynamics.
Collapse
Affiliation(s)
- Stéphane Le Gac
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| | - Bernard Boitrel
- UMR CNRS 6226
- Institut des Sciences Chimiques de Rennes
- Université de Rennes 1
- 35042 Rennes cedex
- France
| |
Collapse
|
17
|
Sarma T, Kumar BS, Panda PK. β,β'-Bipyrrole Fusion-Driven cis-Bimetallic Complexation in Isomeric Porphyrin. Angew Chem Int Ed Engl 2015; 54:14835-9. [PMID: 26486503 DOI: 10.1002/anie.201508409] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/09/2022]
Abstract
An unprecedented cis-bimetallic complex of dinaphthoporphycene (DNP), namely [Pd2(μ-DNP)(μ-OAc)2], is reported. The most striking feature of this complex is that two palladiums coordinate to the macrocycle on the same side and are closely held together (Pd-Pd: 2.67 Å) by two bridging acetate ligands exhibiting significant metal-metal bonding interaction (bond order 0.18 evaluated by NBO analysis). Interestingly, replacing acetate with acetylacetonate (acac) could stabilize an unusual mono-palladium complex of DNP, where Pd coordinates unsymmetrically to two ring Ns above the macrocyclic plane, as well as coordinating with two Os of the acac ligand. Remarkably, the rigid DNP core displays enhanced complexation induced aromaticity (as per NICS and HOMA analysis), despite undergoing severe core deformation during complexation with metal ion(s) as noticed from their solid-state structures.
Collapse
Affiliation(s)
- Tridib Sarma
- School of Chemistry, University of Hyderabad, Hyderabad-500046 (India)
| | - B Sathish Kumar
- School of Chemistry, University of Hyderabad, Hyderabad-500046 (India)
| | - Pradeepta K Panda
- School of Chemistry, University of Hyderabad, Hyderabad-500046 (India). ,
| |
Collapse
|
18
|
Sarma T, Kumar BS, Panda PK. β,β′‐Bipyrrole Fusion‐Driven
cis
‐Bimetallic Complexation in Isomeric Porphyrin. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Tridib Sarma
- School of Chemistry, University of Hyderabad, Hyderabad‐500046 (India)
| | - B. Sathish Kumar
- School of Chemistry, University of Hyderabad, Hyderabad‐500046 (India)
| | | |
Collapse
|
19
|
Ndoyom V, Fusaro L, Dorcet V, Boitrel B, Le Gac S. Sunlight-Driven Formation and Dissociation of a Dynamic Mixed-Valence Thallium(III)/Thallium(I) Porphyrin Complex. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
20
|
Ndoyom V, Fusaro L, Dorcet V, Boitrel B, Le Gac S. Sunlight-driven formation and dissociation of a dynamic mixed-valence thallium(III)/thallium(I) porphyrin complex. Angew Chem Int Ed Engl 2015; 54:3806-11. [PMID: 25631210 DOI: 10.1002/anie.201411616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Indexed: 11/07/2022]
Abstract
Inspired by a Newton's cradle device and interested in the development of redox-controllable bimetallic molecular switches, a mixed-valence thallium(III)/thallium(I) bis-strap porphyrin complex, with Tl(III) bound out of the plane of the N core and Tl(I) hung to a strap on the opposite side, was formed by the addition of TlOAc to the free base and exposure to indirect sunlight. In this process, oxygen photosensitization by the porphyrin allows the oxidation of Tl(I) to Tl(III). The bimetallic complex is dynamic as the metals exchange their positions symmetrically to the porphyrin plane with Tl(III) funneling through the macrocycle. Further exposure of the complex to direct sunlight leads to thallium dissociation and to total recovery of the free base. Hence, the porphyrin plays a key role at all stages of the cycle of the complex: It hosts two metal ions, and by absorbing light, it allows the formation and dissociation of Tl(III). These results constitute the basis for the further design of innovative light-driven bimetallic molecular devices.
Collapse
Affiliation(s)
- Victoria Ndoyom
- UMR CNRS 6226, Institut des Sciences Chimiques de Rennes, Université de Rennes 1, 263 avenue du Général Leclerc, 35042 Rennes cedex (France)
| | | | | | | | | |
Collapse
|
21
|
Le Gac S, Furet E, Roisnel T, Hijazi I, Halet JF, Boitrel B. A Pentanuclear Lead(II) Complex Based on a Strapped Porphyrin with Three Different Coordination Modes. Inorg Chem 2014; 53:10660-6. [DOI: 10.1021/ic5017824] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Stéphane Le Gac
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| | - Eric Furet
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| | - Thierry Roisnel
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| | - Ismail Hijazi
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| | - Jean-François Halet
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques
de Rennes, UMR 6226, CNRS - Ecole Nationale Supérieure de Chimie de Rennes−Université de Rennes 1, F-35042 Rennes Cedex, France
| |
Collapse
|