1
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Govindarajan R, Deolka S, Khusnutdinova JR. Heterometallic bond activation enabled by unsymmetrical ligand scaffolds: bridging the opposites. Chem Sci 2022; 13:14008-14031. [PMID: 36540828 PMCID: PMC9728565 DOI: 10.1039/d2sc04263k] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 10/27/2022] [Indexed: 08/19/2023] Open
Abstract
Heterobi- and multimetallic complexes providing close proximity between several metal centers serve as active species in artificial and enzymatic catalysis, and in model systems, showing unique modes of metal-metal cooperative bond activation. Through the rational design of well-defined, unsymmetrical ligand scaffolds, we create a convenient approach to support the assembly of heterometallic species in a well-defined and site-specific manner, preventing them from scrambling and dissociation. In this perspective, we will outline general strategies for the design of unsymmetrical ligands to support heterobi- and multimetallic complexes that show reactivity in various types of heterometallic cooperative bond activation.
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Affiliation(s)
- R Govindarajan
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Shubham Deolka
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
| | - Julia R Khusnutdinova
- Coordination Chemistry and Catalysis Unit, Okinawa Institute of Science and Technology Graduate University 1919-1 Tancha, Onna-son 904-0495 Okinawa Japan
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2
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Insight into the huge difference in redox potential between the structural OEC analogues Mn3CaO4 and Mn4CaO4. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Chen C, Xu B, Yao R, Chen Y, Zhang C. Synthesizing Mechanism of the Mn 4 Ca Cluster Mimicking the Oxygen-Evolving Center in Photosynthesis. CHEMSUSCHEM 2022; 15:e202102661. [PMID: 35075776 DOI: 10.1002/cssc.202102661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/19/2022] [Indexed: 06/14/2023]
Abstract
The photosynthetic oxygen-evolving center (OEC) is a unique Mn4 CaO5 cluster that serves as a blueprint to develop superior water-splitting catalysts for the generation of solar fuels in artificial photosynthesis. It is a great challenge and long-standing issue to reveal the synthesizing mechanism of this Mn4 CaO5 cluster in both natural and artificial photosynthesis. Herein, efforts were made to reveal the synthesizing mechanism of an artificial Mn4 CaO4 cluster, a close mimic of the OEC. Four key intermediates were successfully isolated and structurally characterized for the first time. It was demonstrated that the Mn4 CaO4 cluster could be formed through a reaction between a thermodynamically stable Mn3 CaO4 cluster and an unusual four-coordinated MnIII ion, followed by stabilization process through binding an organic base (e.g., pyridine) on the "dangling" Mn ion. These findings shed new light on the synthesizing mechanism of the OEC and rational design of new artificial water-splitting catalysts.
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Affiliation(s)
- Changhui Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Boran Xu
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ruoqing Yao
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yang Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chunxi Zhang
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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4
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Search for Structurally Resembled Mn/Ca Cubane Core of the Oxygen Evolving Complex of Photosystem II Yielded MnIV, MnIII3MnII and MnIII2CaII2 Entities: Structure and Magnetism. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Bigness A, Vaddypally S, Zdilla MJ, Mendoza-Cortes JL. Ubiquity of cubanes in bioinorganic relevant compounds. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Influence of Mn/Ca ratio in Mn-Ca coordination clusters: Synthesis, structure, and magnetic characterisation. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Lee HB, Shiau AA, Marchiori DA, Oyala PH, Yoo B, Kaiser JT, Rees DC, Britt RD, Agapie T. CaMn
3
IV
O
4
Cubane Models of the Oxygen‐Evolving Complex: Spin Ground States
S
<9/2 and the Effect of Oxo Protonation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Heui Beom Lee
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - Angela A. Shiau
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - David A. Marchiori
- Department of Chemistry University of California, Davis One Shields Ave Davis CA 95616 USA
| | - Paul H. Oyala
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - Byung‐Kuk Yoo
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - Jens T. Kaiser
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - Douglas C. Rees
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
| | - R. David Britt
- Department of Chemistry University of California, Davis One Shields Ave Davis CA 95616 USA
| | - Theodor Agapie
- Department of Chemistry and Chemical Engineering California Institute of Technology 1200 E California Blvd MC 127-72 Pasadena CA 91125 USA
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8
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Lee HB, Shiau AA, Marchiori DA, Oyala PH, Yoo BK, Kaiser JT, Rees DC, Britt RD, Agapie T. CaMn 3 IV O 4 Cubane Models of the Oxygen-Evolving Complex: Spin Ground States S<9/2 and the Effect of Oxo Protonation. Angew Chem Int Ed Engl 2021; 60:17671-17679. [PMID: 34042234 DOI: 10.1002/anie.202105303] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Indexed: 11/07/2022]
Abstract
We report the single crystal XRD and MicroED structure, magnetic susceptibility, and EPR data of a series of CaMn3 IV O4 and YMn3 IV O4 complexes as structural and spectroscopic models of the cuboidal subunit of the oxygen-evolving complex (OEC). The effect of changes in heterometal identity, cluster geometry, and bridging oxo protonation on the spin-state structure was investigated. In contrast to previous computational models, we show that the spin ground state of CaMn3 IV O4 complexes and variants with protonated oxo moieties need not be S=9/2. Desymmetrization of the pseudo-C3 -symmetric Ca(Y)Mn3 IV O4 core leads to a lower S=5/2 spin ground state. The magnitude of the magnetic exchange coupling is attenuated upon oxo protonation, and an S=3/2 spin ground state is observed in CaMn3 IV O3 (OH). Our studies complement the observation that the interconversion between the low-spin and high-spin forms of the S2 state is pH-dependent, suggesting that the (de)protonation of bridging or terminal oxygen atoms in the OEC may be connected to spin-state changes.
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Affiliation(s)
- Heui Beom Lee
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - Angela A Shiau
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - David A Marchiori
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA, 95616, USA
| | - Paul H Oyala
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - Byung-Kuk Yoo
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - Jens T Kaiser
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - Douglas C Rees
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
| | - R David Britt
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA, 95616, USA
| | - Theodor Agapie
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA, 91125, USA
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9
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Gouré E, Gerey B, Astudillo CN, Pécaut J, Sirach S, Molton F, Fortage J, Collomb MN. Self-Assembled Heterometallic Complexes by Incorporation of Calcium or Strontium Ion into a Manganese(II) 12-Metallacrown-3 Framework Supported by a Tripodal Ligand with Pyridine-Carboxylate Motifs: Stability in Their Manganese(III) Oxidized Form. Inorg Chem 2021; 60:7922-7936. [PMID: 34014651 DOI: 10.1021/acs.inorgchem.1c00457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report on the isolation of a new family of μ-carboxylato-bridged metallocrown (MC) compounds by self-assembly of the recently isolated hexadentate tris(2-pyridylmethyl)amine ligand tpada2- incorporating two carboxylate units with metal cations. Twelve-membered MCs of manganese of the type 12-MC-3, namely, [{MnII(tpada)}3(M)(H2O)n]2+ (Mn3M) (M = Mn2+ (n = 0), Ca2+ (n = 1), or Sr2+ (n = 2)), were structurally characterized. The metallamacrocycles connectivity consisting in three -[Mn-O-C-O]- repeating units is provided by one carboxylate unit of the three tpada2- ligands, while the second carboxylate coordinated a fourth cation in the central cavity of the MC, Mn2+ or an alkaline earth metal, Ca2+ or Sr2+. Mn3Ca and {Mn3Sr}2 join the small family of heterometallic manganese-calcium complexes and even rarer manganese-strontium complexes as models of the OEC of photosystem II (PSII). A 8-MC-4 of strontium of the molecular wheel type with four -[Sr-O]- repeating unit was also isolated by self-assembly of the tpada2- ligand with Sr2+. This complex, namely, [Sr(tpada)(OH2)]4 (Sr4), does not incorporate any cation in the central cavity but instead four water molecules coordinated to each Sr2+. Electrochemical investigations coupled to UV-visible absorption and EPR spectroscopies as well as electrospray mass spectrometry reveal the stability of the 12-MC-3 tetranuclear structures in solution, both in the initial oxidation state, MnII3M, as well as in the three-electrons oxidized state, MnIII3M. Indeed, the cyclic voltammogram of all these complexes exhibits three-successive reversible oxidation waves between +0.5 and +0.9 V corresponding to the successive one-electron oxidation of the Mn(II) ion into Mn(III) of the three {Mn(tpada)} units constituting the ring, which are fully maintained after bulk electrolysis.
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Affiliation(s)
- Eric Gouré
- Univ. Grenoble Alpes, CNRS, DCM, 38000 Grenoble, France
| | - Bertrand Gerey
- Univ. Grenoble Alpes, CNRS, DCM, 38000 Grenoble, France.,Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, 38000 Grenoble, France
| | | | - Jacques Pécaut
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, 38000 Grenoble, France
| | - Selim Sirach
- Univ. Grenoble Alpes, CNRS, DCM, 38000 Grenoble, France
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10
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Pilichos E, Escuer A, Font-Bardia M, Mayans J. Chiral Versus Non-Chiral [Mn III 6 Mn II Na I ], [Mn III 6 Mn II 2 Na I 2 ] and [Mn III 3 Mn II Na I ] Clusters Derived from Schiff Bases or the Fight for Symmetry. Chemistry 2020; 26:13053-13062. [PMID: 32428307 DOI: 10.1002/chem.202001656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/12/2020] [Indexed: 11/09/2022]
Abstract
The reaction in basic media of manganese chloride with Schiff bases derived from the condensation of o-vanillin with different chiral/racemic aminoalcohols yielded in a family of complexes in which the nuclearity, symmetry and magnetic behavior is controlled by changing the position of the chiral carbon. Chiral and racemic clusters with [MnIII 6 MnII NaI ], [MnIII 6 MnII 2 NaI 2 ] and [MnIII 3 MnII NaI ] metallic core have been structurally and magnetically characterized. The racemic clusters with an odd number of chiral ligands exhibit the anomalous mixing of ligands with different conformation. Related racemic compounds have been reviewed.
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Affiliation(s)
- Evangelos Pilichos
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franques 1-11, Barcelona, 08028, Spain
| | - Albert Escuer
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franques 1-11, Barcelona, 08028, Spain
| | - Mercé Font-Bardia
- Departament de Mineralogia, Cristal⋅lografia i Dipòsits Minerals and Unitat de Difracció de R-X. Centre Científic i Tecnològic (CCiTUB), Universitat de Barcelona, Martí Franqués s/n, Barcelona, 08028, Spain
| | - Júlia Mayans
- Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, Martí i Franques 1-11, Barcelona, 08028, Spain
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11
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Kumar Bhaumik P, Frontera A, Chattopadhyay S. Exploitation of the electron deficient outer O4 compartment of a compartmental Schiff base to act as H-bond acceptors in forming a self-assembled dimer of a manganese(III) complex: A joint experimental and theoretical venture. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114711] [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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12
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Singh B, Indra A. Role of redox active and redox non-innocent ligands in water splitting. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119440] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Tziotzi TG, Andreou EK, Tzanetou E, Kalofolias DA, Cutler DJ, Weselski M, Siczek M, Lis T, Brechin EK, Milios CJ. The first amino acid bound manganese–calcium clusters: a {[MnIII3Ca]2} methylalanine complex, and a [MnIII6Ca] trigonal prism. Dalton Trans 2020; 49:10339-10343. [DOI: 10.1039/d0dt01916j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of methylalanine in manganese/calcium chemistry has led to the synthesis and characterization of the first manganese/calcium amino acid containing polynuclear clusters.
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Affiliation(s)
| | | | - Eirini Tzanetou
- Department of Chemistry
- The University of Crete
- Herakleion
- Greece
| | | | - Daniel J. Cutler
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
| | - Marek Weselski
- Faculty of Chemistry
- University of Wroclaw
- 50-283 Wroclaw
- Poland
| | - Milosz Siczek
- Faculty of Chemistry
- University of Wroclaw
- 50-283 Wroclaw
- Poland
| | - Tadeusz Lis
- Faculty of Chemistry
- University of Wroclaw
- 50-283 Wroclaw
- Poland
| | - Euan K. Brechin
- EaStCHEM School of Chemistry
- The University of Edinburgh
- Edinburgh
- UK
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14
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15
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Functionalized dipyridyl-methanol ligand for a targeted synthesis of Mn cubane and double-cubane aggregates. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.05.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Liu J, Suo Q, Song J, Zhang L, Gao Y. A series of [Na2MnII2MnIII6] clusters derived from trigonal bipyramidal [NaMnIIMnIII3] subunits bridged by mono-, di- and tri-fold azide groups: synthesis, crystal structures and magnetic properties. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Chen C, Chen Y, Yao R, Li Y, Zhang C. Artificial Mn 4 Ca Clusters with Exchangeable Solvent Molecules Mimicking the Oxygen-Evolving Center in Photosynthesis. Angew Chem Int Ed Engl 2019; 58:3939-3942. [PMID: 30614609 DOI: 10.1002/anie.201814440] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 11/08/2022]
Abstract
The natural Mn4 Ca cluster in photosystem II serves as a blueprint to develop artificial water-splitting catalysts for the generation of solar fuel in artificial photosynthesis. Although significant advances have recently been achieved, it remains a great challenge to prepare robust artificial Mn4 Ca clusters that precisely mimic the structure and function of the biological catalyst. Herein, we report the isolation and structural characterization of two Mn4 CaO4 complexes with polar solvent molecules, acetonitrile or N,N-dimethylformamide, which closely mimics the two water molecules on the calcium ion, as well as the oxidation states of the four manganese ions and the main geometric structure of the natural Mn4 Ca cluster. These new artificial Mn4 Ca complexes provide important chemical clues to understand the structure and mechanism of the biological system.
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Affiliation(s)
- Changhui Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruoqing Yao
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanxi Li
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunxi Zhang
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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18
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Chen C, Chen Y, Yao R, Li Y, Zhang C. Artificial Mn
4
Ca Clusters with Exchangeable Solvent Molecules Mimicking the Oxygen‐Evolving Center in Photosynthesis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814440] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Changhui Chen
- Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yang Chen
- Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ruoqing Yao
- Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yanxi Li
- Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chunxi Zhang
- Laboratory of PhotochemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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19
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Anwar MU, Al-Harrasi A, Rawson JM, Gavey EL, Regier J, Alexandropoulos D, Pilkington M, Thompson LK. Slow magnetic relaxation in Dy2 and Dy4 complexes of a versatile, trifunctional polydentate N,O-ligand. Dalton Trans 2019; 48:14269-14278. [DOI: 10.1039/c9dt02331c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A binuclear DyIII complex exhibits slow relaxation of magnetization under an applied dc field, while its tetranuclear counterpart exhibits “true” zero-field SMM behaviour.
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Affiliation(s)
- Muhammad U. Anwar
- Natural and Medical Sciences Research Centre
- University of Nizwa
- Nizwa
- Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Centre
- University of Nizwa
- Nizwa
- Oman
| | | | - Emma L. Gavey
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
| | - Jeffery Regier
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
| | | | - Melanie Pilkington
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
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20
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Lee HB, Shiau AA, Oyala PH, Marchiori DA, Gul S, Chatterjee R, Yano J, Britt RD, Agapie T. Tetranuclear [Mn IIIMn 3IVO 4] Complexes as Spectroscopic Models of the S 2 State of the Oxygen Evolving Complex in Photosystem II. J Am Chem Soc 2018; 140:17175-17187. [PMID: 30407806 DOI: 10.1021/jacs.8b09961] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Despite extensive biochemical, spectroscopic, and computational studies, the mechanism of biological water oxidation by the oxygen evolving complex (OEC) of Photosystem II remains a subject of significant debate. Mechanistic proposals are guided by the characterization of reaction intermediates such as the S2 state, which features two characteristic EPR signals at g = 2 and g = 4.1. Two nearly isoenergetic structural isomers have been proposed as the source of these distinct signals, but relevant structure-electronic structure studies remain rare. Herein, we report the synthesis, crystal structure, electrochemistry, XAS, magnetic susceptibility, variable temperature CW-EPR, and pulse EPR data for a series of [MnIIIMn3IVO4] cuboidal complexes as spectroscopic models of the S2 state of the OEC. Resembling the oxidation state and EPR spectra of the S2 state of the OEC, these model complexes show two EPR signals, a broad low field signal and a multiline signal, that are remarkably similar to the biological system. The effect of systematic changes in the nature of the bridging ligands on spectroscopy were studied. Results show that the electronic structure of tetranuclear Mn complexes is highly sensitive to even small geometric changes and the nature of the bridging ligands. Our model studies suggest that the spectroscopic properties of the OEC may also react very sensitively to small changes in structure; the effect of protonation state and other reorganization processes need to be carefully assessed.
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Affiliation(s)
- Heui Beom Lee
- Department of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd MC 127-72 , Pasadena , California 91125 , United States
| | - Angela A Shiau
- Department of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd MC 127-72 , Pasadena , California 91125 , United States
| | - Paul H Oyala
- Department of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd MC 127-72 , Pasadena , California 91125 , United States
| | - David A Marchiori
- Department of Chemistry , University of California Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Sheraz Gul
- Molecular Biophysics and Integrated Bioimaging Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Ruchira Chatterjee
- Molecular Biophysics and Integrated Bioimaging Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Junko Yano
- Molecular Biophysics and Integrated Bioimaging Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - R David Britt
- Department of Chemistry , University of California Davis , One Shields Avenue , Davis , California 95616 , United States
| | - Theodor Agapie
- Department of Chemistry and Chemical Engineering , California Institute of Technology , 1200 E California Blvd MC 127-72 , Pasadena , California 91125 , United States
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21
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Mayans J, Font‐Bardia M, Di Bari L, Górecki M, Escuer A. Chiral [Mn
II
Mn
III
3
M′] (M′=Na
I
, Ca
II
, Mn
II
) and [Mn
II
Mn
III
6
Na
I
2
] Clusters Built from an Enantiomerically Pure Schiff Base: Synthetic, Chiroptical, and Magnetic Properties. Chemistry 2018; 24:18705-18717. [DOI: 10.1002/chem.201803730] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Júlia Mayans
- Departament de Química Inorgànica i OrgànicaSecció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB)Universitat de Barcelona Martí i Franques 1–11 Barcelona 08028 Spain
| | - Mercé Font‐Bardia
- Departament de MineralogiaCristal⋅lografia i Dipòsits Minerals, and Unitat de Difracció de R-X. Centre Científic i Tecnològic (CCiTUB)Universitat de Barcelona Martí Franqués s/n Barcelona 08028 Spain
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chímica IndustrialeUniversità di Pisa Via Moruzzi 13 56124 Pisa Italy
- Current address: Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 St. 01-224 Warsaw Poland
| | - Marcin Górecki
- Dipartimento di Chimica e Chímica IndustrialeUniversità di Pisa Via Moruzzi 13 56124 Pisa Italy
- Current address: Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 St. 01-224 Warsaw Poland
| | - Albert Escuer
- Departament de Química Inorgànica i OrgànicaSecció Inorgànica and Institut de Nanociència i Nanotecnologia (IN2UB)Universitat de Barcelona Martí i Franques 1–11 Barcelona 08028 Spain
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22
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Ghorai P, Brandão P, Bauzá A, Frontera A, Saha A. Synthesis of Multinuclear Zn(II) Complexes Involving 8‐Aminoquinoline‐ Based Schiff‐Base Ligand: Structural Diversity, DNA Binding Studies and Theoretical Calculations. ChemistrySelect 2018. [DOI: 10.1002/slct.201801273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Pravat Ghorai
- Department of ChemistryJadavpur University Kolkata- 700032 India
| | - Paula Brandão
- Departamento de QuímicaCICECOUniversidade de Aveiro 3810-193 Aveiro Portugal
| | - Antonio Bauzá
- Departament de QuímicaUniversitat de les IllesBalears, Crta. De Valldemossa km 7.5 07122 Palma (Baleares) Spain
| | - Antonio Frontera
- Departament de QuímicaUniversitat de les IllesBalears, Crta. De Valldemossa km 7.5 07122 Palma (Baleares) Spain
| | - Amrita Saha
- Department of ChemistryJadavpur University Kolkata- 700032 India
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23
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Lee HB, Tsui EY, Agapie T. A CaMn 4O 2 model of the biological oxygen evolving complex: synthesis via cluster expansion on a low symmetry ligand. Chem Commun (Camb) 2018; 53:6832-6835. [PMID: 28480467 DOI: 10.1039/c7cc02313h] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Using a new multinucleating ligand featuring two dipyridyl alkoxide moieties and a carboxylate moiety, low symmetry tetranuclear complexes 1-M (M = Mn, Fe, and Co) have been synthesized. Complex 1-Mn was used as a precursor for the synthesis of a pentanuclear CaMn4O2 cluster (3) with the same metal stoichiometry as the biological OEC.
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Affiliation(s)
- Heui Beom Lee
- Department of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd MC 127-72, Pasadena, CA 91125, USA.
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24
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Mayans J, Font-Bardia M, Escuer A. Triple Halide Bridges in Chiral MnII2MnIII6NaI2 Cages: Structural and Magnetic Characterization. Inorg Chem 2018; 57:926-929. [DOI: 10.1021/acs.inorgchem.7b03125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Júlia Mayans
- Departament de Química
Inorgànica i Orgànica, Secció Inorgànica
and Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, Martí i Franqués 1−11, Barcelona 08028, Spain
| | - Mercè Font-Bardia
- Departament de Mineralogia, Cristal·lografia i Dipòsits
Minerals, Universitat de Barcelona, Martí Franqués s/n, 08028 Barcelona, Spain
- Unitat de Difracció de R-X, Centre Científic i Tecnològic de la Universitat de Barcelona, Solé i Sabarís 1−3, 08028 Barcelona, Spain
| | - Albert Escuer
- Departament de Química
Inorgànica i Orgànica, Secció Inorgànica
and Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, Martí i Franqués 1−11, Barcelona 08028, Spain
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25
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Chen C, Li Y, Zhao G, Yao R, Zhang C. Natural and Artificial Mn 4 Ca Cluster for the Water Splitting Reaction. CHEMSUSCHEM 2017; 10:4403-4408. [PMID: 28921879 DOI: 10.1002/cssc.201701371] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/10/2017] [Indexed: 06/07/2023]
Abstract
The oxygen-evolving center (OEC) in photosystem II (PSII) is a unique biological catalyst that splits water into electrons, protons, and O2 by using solar energy. Recent crystallographic studies have revealed that the structure of the OEC is an asymmetric Mn4 Ca cluster, which provides a blueprint to develop man-made water-splitting catalysts for artificial photosynthesis. Although it is a great challenge to mimic the whole structure and function of the OEC in the laboratory, significant advances have recently been achieved. In this Minireview, recent progress on mimicking the natural OEC is discussed. New strategies are suggested to construct more stable and efficient new generation of catalytic materials for the water splitting reaction based on the artificial Mn4 Ca cluster in the future.
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Affiliation(s)
- Changhui Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanxi Li
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guoqing Zhao
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ruoqing Yao
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Chunxi Zhang
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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26
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Alaimo AA, Koumousi ES, Cunha-Silva L, McCormick LJ, Teat SJ, Psycharis V, Raptopoulou CP, Mukherjee S, Li C, Gupta SD, Escuer A, Christou G, Stamatatos TC. Structural Diversities in Heterometallic Mn–Ca Cluster Chemistry from the Use of Salicylhydroxamic Acid: {MnIII4Ca2}, {MnII/III6Ca2}, {MnIII/IV8Ca}, and {MnIII8Ca2} Complexes with Relevance to Both High- and Low-Valent States of the Oxygen-Evolving Complex. Inorg Chem 2017; 56:10760-10774. [DOI: 10.1021/acs.inorgchem.7b01740] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alysha A. Alaimo
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, L2S 3A1 St. Catharines, Ontario, Canada
| | | | - Luís Cunha-Silva
- REQUIMTE-LAQV & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Laura J. McCormick
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Simon J. Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Agia Paraskevi, Attikis, Greece
| | - Catherine P. Raptopoulou
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Agia Paraskevi, Attikis, Greece
| | - Shreya Mukherjee
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Chaoran Li
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Sayak Das Gupta
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Albert Escuer
- Departament
de Quimica Inorganica and Institut de Nanociencia i Nanotecnologia
(IN2UB), Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Theocharis C. Stamatatos
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, L2S 3A1 St. Catharines, Ontario, Canada
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27
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Sarkar N, Das M, Chattopadhyay S. Two new manganese(III) complexes with salicylaldimine Schiff bases: Synthesis, structure, self-assembly and phenoxazinone synthase mimicking activity. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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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.
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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
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29
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Arauzo A, Bartolomé E, Benniston AC, Melnic S, Shova S, Luzón J, Alonso PJ, Barra AL, Bartolomé J. Slow magnetic relaxation in a dimeric Mn2Ca2 complex enabled by the large Mn(iii) rhombicity. Dalton Trans 2017; 46:720-732. [DOI: 10.1039/c6dt02509a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A large single-ion transverse anisotropy at Mn(iii) sites induces slow magnetic relaxation at zero magnetic field of the ferromagnetic Mn dimers in a singular Mn2Ca2 complex.
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Affiliation(s)
- Ana Arauzo
- Servicio de Medidas Físicas
- Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Elena Bartolomé
- Escola Universitària Salesiana de Sarrià (EUSS)
- 08017 Barcelona
- Spain
| | - Andrew C. Benniston
- Molecular Photonics Laboratory
- School of Chemistry
- Newcastle University
- Newcastle-upon-Tyne
- UK
| | - Silvia Melnic
- Institute of Chemistry
- Academy of Sciences of Moldova
- Chisinau
- Moldova
| | - Sergiu Shova
- Institute of Macromolecular Chemistry “Petru Poni” Iasi
- 700487 Iasi
- Romania
| | - Javier Luzón
- Centro Universitario de la Defensa
- Academia General Militar
- Zaragoza
- Spain
- Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada
| | - Pablo J. Alonso
- Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
| | - Anne-Laure Barra
- Laboratoire National des Champs Magnétiques Intenses
- CNRS and Université Grenoble Alpes
- 38042 Grenoble Cedex 9
- France
| | - Juan Bartolomé
- Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza
- Spain
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30
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Sarkar N, Bhaumik PK, Chattopadhyay S. Manganese(III) complexes with tetradentate salicylaldimine Schiff bases: Synthesis, structure, self assembly and catalase activity. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.04.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Gerey B, Gouré E, Fortage J, Pécaut J, Collomb MN. Manganese-calcium/strontium heterometallic compounds and their relevance for the oxygen-evolving center of photosystem II. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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Nayak S, Pevec A, Seaton CC, Gamez P, Reedijk J. An unusual Cu(II) complex of a Schiff-base ligand of 3-aminoquinoline with a hydronated pyridine unit: Synthesis, characterizations, and computational studies. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Connolly EA, Leeland JW, Love JB. Mono- and Dinuclear Macrocyclic Calcium Complexes as Platforms for Mixed-Metal Complexes and Clusters. Inorg Chem 2016; 55:840-7. [PMID: 26709870 DOI: 10.1021/acs.inorgchem.5b02289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mono- and dinuclear calcium complexes of the Schiff-base macrocycles H4L have been prepared and characterized spectroscopically and crystallographically. In the formation of Ca(THF)2(H2L(1)), Ca2(THF)2(μ-THF)(L(1)), and Ca2(THF)4(L(2)), the ligand framework adopts a bowl-shaped conformation instead of the conventional wedge, Pacman-shaped structure as seen with the anthracenyl-hinged complex Ca2(py)5(L(3)). The mononuclear calcium complex Ca(THF)2(H2L(1)) reacts with various equivalents of LiN(SiMe3)2 to form calcium/alkali metal clusters and dinuclear transition metal complexes when reacted subsequently with transition metal salts. The dinuclear calcium complex Ca2(THF)2(μ-THF)(L(1)), when reacted with various equivalents of NaOH, is shown to act as a platform for the formation of calcium/alkali metal hydroxide clusters, displaying alternate wedged and bowl-shaped conformations.
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Affiliation(s)
- Emma A Connolly
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
| | - James W Leeland
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
| | - Jason B Love
- EaStCHEM School of Chemistry, University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh, U.K. EH9 3FJ
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34
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Escriche-Tur L, Jover J, Font-Bardia M, Aullón G, Corbella M. Magnetic Behavior of Heterometallic Wheels Having a [Mn(IV)6M2O9](10+) Core with M = Ca(2+) and Sr(2+). Inorg Chem 2015; 54:11596-605. [PMID: 26645300 DOI: 10.1021/acs.inorgchem.5b02131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two new heterometallic Mn(IV)-M(2+) compounds with formula [Mn6M2O9(4-(t)BuC6H4COO)10(4-(t)BuC6H4COOH)5] (M = Ca(2+) (1), Sr(2+) (2)) have been crystallized. The core of both compounds consists of a planar Mn6 ring, where the Mn(IV) ions are alternatively bridged by (μ3-O)2(μ-RCOO) and (μ4-O)(μ-RCOO)2 ligands, and the two alkaline earth ions are located to both sides of the wheel, linked to the oxo bridges, generating three fused [Mn2M2O4](4+) cuboids. These compounds show a net antiferromagnetic behavior, more important for 2 (Sr(2+)) than for 1 (Ca(2+)). The fitting of the experimental data was performed with the support of DFT calculations, considering four different exchange pathways: two between adjacent Mn(IV) ions (J1 and J2) and two between nonadjacent Mn(IV) ions (J3 and J4). The results of the analysis show that J1 and J2 are of the opposite sign, the ferromagnetic contribution corresponding to the [Mn2(μ4-O)(μ-RCOO)2](4+) unit (J2). The influence of the M(2+) ions in the magnetic behavior is analyzed for 1 and 2 and for three hypothetical models with the structural parameters of 1 containing Mg(2+), Sr(2+) or without the M(2+) ions. In spite of the diamagnetic character of the alkaline earth ions, their influence on the magnetic behavior has been evidenced and correlated with their polarizing effect. Moreover, the magnetic interactions between nonadjacent ions are non-negligible.
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Affiliation(s)
| | | | | | - Gabriel Aullón
- Institut de Química Teòrica i Computacional de la Universitat de Barcelona (IQTCUB) , Barcelona 08028, Spain
| | - Montserrat Corbella
- Institut de Nanociencia i Nanotecnologia de la Universitat de Barcelona (IN2UB) , Barcelona 08028, Spain
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35
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Chen C, Zhang C, Dong H, Zhao J. Artificial synthetic Mn(IV)Ca-oxido complexes mimic the oxygen-evolving complex in photosystem II. Dalton Trans 2015; 44:4431-5. [PMID: 25662151 DOI: 10.1039/c4dt03459g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel family of heteronuclear Mn(IV)Ca-oxido complexes containing Mn(IV)Ca-oxido cuboidal moieties and reactive water molecules on Ca(2+) have been synthesized and characterized to mimic the oxygen-evolving complex (OEC) of photosystem II (PSII) in nature.
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Affiliation(s)
- Changhui Chen
- Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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36
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Cook SA, Hill EA, Borovik AS. Lessons from Nature: A Bio-Inspired Approach to Molecular Design. Biochemistry 2015; 54:4167-80. [PMID: 26079379 DOI: 10.1021/acs.biochem.5b00249] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metalloproteins contain actives sites with intricate structures that perform specific functions with high selectivity and efficiency. The complexity of these systems complicates the study of their function and the understanding of the properties that give rise to their reactivity. One approach that has contributed to the current level of understanding of their biological function is the study of synthetic constructs that mimic one or more aspects of the native metalloproteins. These systems allow individual contributions to the structure and function to be analyzed and also permit spectroscopic characterization of the metal cofactors without complications from the protein environment. This Current Topic is a review of synthetic constructs as probes for understanding the biological activation of small molecules. These topics are developed from the perspective of seminal molecular design breakthroughs from the past that provide the foundation for the systems used today.
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Affiliation(s)
- Sarah A Cook
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, California 92697, United States
| | - Ethan A Hill
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, California 92697, United States
| | - A S Borovik
- Department of Chemistry, University of California-Irvine, 1102 Natural Sciences II, Irvine, California 92697, United States
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37
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Fuller RO, Koutsantonis GA, Lozić I, Ogden MI, Skelton BW. Manganese–calcium clusters supported by calixarenes. Dalton Trans 2015; 44:2132-7. [DOI: 10.1039/c4dt02952f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
An investigation inspired by the structure of the oxygen-evolving complex of photosystem II has resulted in the isolation and structural characterization of the first examples of Mn/Ca clusters supported by a calixarene ligand.
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Affiliation(s)
- Rebecca O. Fuller
- Chemistry M310
- School of Chemistry and Biochemistry
- University of Western Australia
- Crawley
- Australia
| | - George A. Koutsantonis
- Chemistry M310
- School of Chemistry and Biochemistry
- University of Western Australia
- Crawley
- Australia
| | - Ivan Lozić
- Chemistry M310
- School of Chemistry and Biochemistry
- University of Western Australia
- Crawley
- Australia
| | - Mark I. Ogden
- Department of Chemistry
- Curtin University
- Perth
- Australia
| | - Brian W. Skelton
- Centre for Microscopy
- Characterisation and Analysis
- University of Western Australia
- Crawley
- Australia
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38
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Gerey B, Gennari M, Gouré E, Pécaut J, Blackman A, Pantazis DA, Neese F, Molton F, Fortage J, Duboc C, Collomb MN. Calcium and heterometallic manganese–calcium complexes supported by tripodal pyridine-carboxylate ligands: structural, EPR and theoretical investigations. Dalton Trans 2015; 44:12757-70. [DOI: 10.1039/c5dt01776a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rare examples of heteronuclear μ-carboxylato bridged Mn–Ca complexes are reported.
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Affiliation(s)
- Bertrand Gerey
- Univ. Grenoble Alpes
- F-38000 Grenoble
- France
- CNRS
- F-38000 Grenoble
| | | | - Eric Gouré
- Univ. Grenoble Alpes
- F-38000 Grenoble
- France
- CNRS
- F-38000 Grenoble
| | | | - Allan Blackman
- School of Applied Sciences
- Auckland University of Technology
- Auckland 1142
- New Zealand
| | - Dimitrios A. Pantazis
- Max-Planck-Institut für Chemische Energie Konversion
- D-45470 Mülheim an der Ruhr
- Germany
| | - Frank Neese
- Max-Planck-Institut für Chemische Energie Konversion
- D-45470 Mülheim an der Ruhr
- Germany
| | - Florian Molton
- Univ. Grenoble Alpes
- F-38000 Grenoble
- France
- CNRS
- F-38000 Grenoble
| | - Jérôme Fortage
- Univ. Grenoble Alpes
- F-38000 Grenoble
- France
- CNRS
- F-38000 Grenoble
| | - Carole Duboc
- Univ. Grenoble Alpes
- F-38000 Grenoble
- France
- CNRS
- F-38000 Grenoble
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39
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Alaimo AA, Takahashi D, Cunha-Silva L, Christou G, Stamatatos TC. Emissive {Mn4IIICa} Clusters with Square Pyramidal Topologies: Syntheses and Structural, Spectroscopic, and Physicochemical Characterization. Inorg Chem 2014; 54:2137-51. [DOI: 10.1021/ic502492x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Alysha A. Alaimo
- Department of Chemistry, Brock University, St. Catharines L2S 3A1, Ontario, Canada
| | - Daisuke Takahashi
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Luís Cunha-Silva
- REQUIMTE & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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40
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Kärkäs MD, Verho O, Johnston EV, Åkermark B. Artificial Photosynthesis: Molecular Systems for Catalytic Water Oxidation. Chem Rev 2014; 114:11863-2001. [DOI: 10.1021/cr400572f] [Citation(s) in RCA: 1024] [Impact Index Per Article: 102.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Oscar Verho
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Eric V. Johnston
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Björn Åkermark
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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41
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Tian CB, Yuan DQ, Han YH, Li ZH, Lin P, Du SW. Synthesis, structures, and magnetic properties of a series of new heterometallic hexanuclear Co2Ln4(Ln = Eu, Gd, Tb and Dy) clusters. Inorg Chem Front 2014. [DOI: 10.1039/c4qi00116h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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42
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The bridging azido ligand as a central “player” in high-nuclearity 3d-metal cluster chemistry. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.04.001] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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43
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Tsui EY, Kanady JS, Agapie T. Synthetic cluster models of biological and heterogeneous manganese catalysts for O2 evolution. Inorg Chem 2014; 52:13833-48. [PMID: 24328344 DOI: 10.1021/ic402236f] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Artificial photosynthesis has emerged as an important strategy toward clean and renewable fuels. Catalytic oxidation of water to O2 remains a significant challenge in this context. A mechanistic understanding of currently known heterogeneous and biological catalysts at a molecular level is highly desirable for fundamental reasons as well as for the rational design of practical catalysts. This Award Article discusses recent efforts in synthesizing structural models of the oxygen-evolving complex of photosystem II. These structural motifs are also related to heterogeneous mixed-metal oxide catalysts. A stepwise synthetic methodology was developed toward achieving the structural complexity of the targeted active sites. A geometrically restricted multinucleating ligand, but with labile coordination modes, was employed for the synthesis of low-oxidation-state trimetallic species. These precursors were elaborated to site-differentiated tetrametallic complexes in high oxidation states. This methodology has allowed for structure-reactivity studies that have offered insight into the effects of different components of the clusters. Mechanistic aspects of oxygen-atom transfer and incorporation from water have been interrogated. Significantly, a large and systematic effect of redox-inactive metals on the redox properties of these clusters was discovered. With the pKa value of the redox-inactive metal-aqua complex as a measure of the Lewis acidity, structurally analogous clusters display a linear dependence between the reduction potential and acidity; each pKa unit shifts the potential by ca. 90 mV. Implications for the function of the biological and heterogeneous catalysts are discussed.
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Affiliation(s)
- Emily Y Tsui
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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44
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Tuning nuclearity of clusters by positional change of functional group: Synthesis of polynuclear clusters, crystal structures and magnetic properties. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.02.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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45
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Cong L, Qin X, Sun W, Wang Y, Ding S, Liu Z. A series of [NaMnIII3MnII] clusters constructed using a multidentate Schiff-base ligand and decorated with different auxiliary ligands. NEW J CHEM 2014. [DOI: 10.1039/c3nj00742a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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46
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Song Y, Zhang G, Qin X, Gao Y, Ding S, Wang Y, Du C, Liu Z. Chiral [NaMnIIMnIII3] and [Na2MnII2MnIII6] clusters constructed by chiral multidentate Schiff-base ligands: synthesis, structures, CD spectra and magnetic properties. Dalton Trans 2014; 43:3880-7. [DOI: 10.1039/c3dt51874d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Chen C, Zhang C, Dong H, Zhao J. A synthetic model for the oxygen-evolving complex in Sr2+-containing photosystem II. Chem Commun (Camb) 2014; 50:9263-5. [DOI: 10.1039/c4cc02349h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An artificial complex containing Mn3SrO4 and three types of μ-O2− moieties has been synthesized to mimic the OEC in PSII.
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Affiliation(s)
- Changhui Chen
- Polymer Materials Research Center
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education
- College of Materials Science and Chemical Engineering
- Harbin Engineering University
- Harbin 150001, China
| | - Chunxi Zhang
- Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
| | - Hongxing Dong
- Polymer Materials Research Center
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education
- College of Materials Science and Chemical Engineering
- Harbin Engineering University
- Harbin 150001, China
| | - Jingquan Zhao
- Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190, China
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48
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Benniston AC, Melnic S, Turta C, Arauzo AB, Bartolomé J, Bartolomé E, Harrington RW, Probert MR. Preparation and properties of a calcium(ii)-based molecular chain decorated with manganese(ii) butterfly-like complexes. Dalton Trans 2014; 43:13349-57. [DOI: 10.1039/c4dt01518e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The room temperature reaction of [Mn2O2(bipy)4](ClO4)3 (bipy = 2,2′-bipyridine) with Ca(CHCl2COO)2 in methanol produced a yellow crystalline material.
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Affiliation(s)
- A. C. Benniston
- Molecular Photonics Laboratory
- School of Chemistry
- Newcastle University
- Newcastle upon Tyne, UK
| | - S. Melnic
- Institute of Chemistry
- Academy of Sciences of Moldova
- Chisinau, Moldova
| | - C. Turta
- Institute of Chemistry
- Academy of Sciences of Moldova
- Chisinau, Moldova
| | - A. B. Arauzo
- Servicio de Medidas Físicas
- Universidad de Zaragoza
- 50009 Zaragoza, Spain
| | - J. Bartolomé
- Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada
- CSIC-Universidad de Zaragoza
- 50009 Zaragoza, Spain
| | - E. Bartolomé
- Escola Universitària Salesiana de Sarrià (EUSS)
- 08017 Barcelona, Spain
| | - R. W. Harrington
- Crystallography Laboratory
- School of Chemistry
- Newcastle University
- Newcastle upon Tyne, UK
| | - M. R. Probert
- Crystallography Laboratory
- School of Chemistry
- Newcastle University
- Newcastle upon Tyne, UK
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49
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Huang J, Wu G, Bai J, Jiang Y, Li G, Qiu S, Clérac R. Synthesis of an S(T) = 7 [Mn3] mixed-valence complex based on 1,3-propanediol ligand derivatives and its one-dimensional assemblies. Inorg Chem 2013; 52:11051-9. [PMID: 24028384 DOI: 10.1021/ic401269p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Controlled organization of high-spin complexes and single-molecule magnets is a great challenge in molecular magnetism in order to study the effect of the intercomplex magnetic interactions on the intrinsic properties of a given magnetic object. In this work, a new S(T) = 7 trinuclear mixed-valence Mn complex, [Mn(III)Mn(II)2(LA)2(Br)4(CH3OH)6] ·Br·(CH3OH)(1.5)·(H2O)(0.5) (1), is reported using a pyridinium-functionalized 1,3-propanediol ligand (H2L(A)Br = 1-(3-bromo-2,2-bis(hydroxymethyl)propyl)pyridinium bromide). Using azido anions as bridging ligands and different pyridinium-functionalized 1,3-propanediol ligands (H2L(B)Br = 1-(3-bromo-2,2-bis(hydroxymethyl)propyl)-4-picolinium bromide; H2L(C)Br = 1-(3-bromo-2,2-bis(hydroxymethyl)propyl)-3,5-lutidinium bromide), the linear [Mn(III)Mn(II)2L2X4](+) building block has been assembled into one-dimensional coordination networks: [Mn(III)Mn(II)2(LA)2(Br)4(CH3OH)4(N3)]·((C2H5)2O)1.25 (2∞), [Mn(III)Mn(II)2(L(B))2(Br)4(C2H5OH)(CH3OH)(H2O)2(N3)]·(H2O)0.25 (3∞), and [Mn(III)Mn(II)2(L(C))2(Cl)(3.8)(Br)(0.2)(C2H5OH)3(CH3OH)(N3)] (4∞). The syntheses, characterization, crystal structures, and magnetic properties of these new [Mn3]-based materials are reported.
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Affiliation(s)
- Jian Huang
- State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University , 2699 Qianjin Street, 130012 Changchun, P. R. China
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50
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Yang P, Shao C, Zhu L, Xu Y. Syntheses, Crystal Structures, and Magnetic Properties of a Family of Tetra‐ and Octanuclear Mixed‐Valent Manganese Clusters. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300582] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pei‐Pei Yang
- College of Chemistry and Materials Science, Huaibei Normal University, 100 Dongshan Road, Huaibei 235000, China, http://www.chnu.edu.cn/Site/hxx/html/
| | - Cong‐Ying Shao
- College of Chemistry and Materials Science, Huaibei Normal University, 100 Dongshan Road, Huaibei 235000, China, http://www.chnu.edu.cn/Site/hxx/html/
| | - Li‐Li Zhu
- College of Chemistry and Materials Science, Huaibei Normal University, 100 Dongshan Road, Huaibei 235000, China, http://www.chnu.edu.cn/Site/hxx/html/
| | - Yun Xu
- College of Chemistry and Materials Science, Huaibei Normal University, 100 Dongshan Road, Huaibei 235000, China, http://www.chnu.edu.cn/Site/hxx/html/
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