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Laurans M, Mattera M, Salles R, K’Bidi L, Gouzerh P, Renaudineau S, Volatron F, Guillemot G, Blanchard S, Izzet G, Solé-Daura A, Poblet JM, Proust A. When Identification of the Reduction Sites in Mixed Molybdenum/Tungsten Keggin-Type Polyoxometalate Hybrids Turns Out Tricky. Inorg Chem 2022; 61:7700-7709. [PMID: 35549467 PMCID: PMC9234957 DOI: 10.1021/acs.inorgchem.2c00866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Indexed: 12/01/2022]
Abstract
The mixed molybdenum/tungsten Keggin-type polyoxometalate (POM) hybrid (TBA)4[PW9Mo2O39{Sn(C6H4I)}] (TBA = tert-butylammonium) has been prepared by the reaction between [α-PW9Mo2O39]7- and [Cl3Sn(C6H4I)] in dried acetonitrile, in the presence of tetra-n-butylammonium bromide. A further coupling reaction affords the ferrocenyl derivative (TBA)4[PW9Mo2O39{Sn(C6H4)C≡C(C6H4)Fc}]. The POM hybrids have been thoroughly characterized by NMR and IR spectroscopies. Electrochemical analysis confirms their ease of reduction compared to the all-W analogue, albeit with a second reduction process occurring at a lower potential than in the all-Mo species. It is noteworthy that the second reduction is accompanied by an unusual red shift of the electronic absorption spectrum. Whereas there is no doubt that the first reduction deals with Mo, the location of the second electron in the bireduced species, on the second Mo or on W, has thus been the subject of a cross-investigation by spectroelectrochemistry, electron spin resonance, and theoretical calculations. Finally, it came out that the second reduction is also Mo-centered with two unpaired and antiferromagnetically coupled extra electrons.
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Affiliation(s)
- Maxime Laurans
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Michele Mattera
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Raphaël Salles
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Ludivine K’Bidi
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Pierre Gouzerh
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Séverine Renaudineau
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Florence Volatron
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Geoffroy Guillemot
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Sébastien Blanchard
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Guillaume Izzet
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
| | - Albert Solé-Daura
- Department
de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel-lí Domingo 1, 43007 Tarragona, Spain
| | - Josep M. Poblet
- Department
de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel-lí Domingo 1, 43007 Tarragona, Spain
| | - Anna Proust
- Institut
Parisien de Chimie Moléculaire, Sorbonne
Université, CNRS, 4 Place Jussieu, F-75005 Paris, France
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Kuzman D, Damjanović V, Stilinović V, Cindrić M, Vrdoljak V. The role of mono- and dicarboxylic acids in the building of oxomolybdates containing {MoO 4}, {Mo 2O 5}, {Mo 2O 6}, {Mo 3O 8}, {Mo 5O 17}, {Mo 5O 18}, {Mo 8O 26}, and {SiMo 12O 40} units. NEW J CHEM 2021. [DOI: 10.1039/d1nj03280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the impact of mono- and dicarboxylic acids on the formation of polyoxomolybdates of different nuclearities, such as {Mo5O17}, {Mo5O18}, {Mo8O26}, and {SiMo12O40}.
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Affiliation(s)
- Dino Kuzman
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
| | - Vladimir Damjanović
- Department of Chemistry and Biochemistry, School of Medicine, University of Zagreb, Šalata 3, Zagreb, Croatia
| | - Vladimir Stilinović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
| | - Marina Cindrić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
| | - Višnja Vrdoljak
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
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Mukhacheva AA, Shmakova AA, Volchek VV, Romanova TE, Benassi E, Gushchin AL, Yanshole V, Sheven DG, Kompankov NB, Abramov PA, Sokolov MN. Reactions of [Ru(NO)Cl 5] 2- with pseudotrilacunary {XW 9O 33} 9- (X = As III, Sb III) anions. Dalton Trans 2019; 48:15989-15999. [PMID: 31595900 DOI: 10.1039/c9dt03328a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of [Ru(NO)Cl5]2- with pseudotrivacant B-α-[XW9O33]9- (X = AsIII, SbIII) at 160 °C result in the rearrangement of polyoxometalate backbones into {XM18} structures. In the case of arsenic, oxidation of AsIII to AsV takes place with the formation of a mixture of plenary and monosubstituted Dawson [As2W18O62]6- and [As2W17Ru(NO)O61]7- anions, of which the latter was isolated as Me2NH2+ (DMA-1a and DMA-1b) and Bu4N+ (Bu4N-1) salts and fully characterized. Both α1 and α2 isomers of [As2W17Ru(NO)O61]7- were present in the reaction mixture; pure [α2-As2W17Ru(NO)O61]7- was isolated as the Bu4N+ salt. In the case of antimony, [SbW9O33]9- is converted into a mixture of [SbW18O60]9- and [SbW17{Ru(NO)}O59]10-. The formation of trisubstituted [SbW15{Ru(NO)}3O57]12- as a minor byproduct was detected by HPLC-ICP-AES. The monosubstituted [SbW17{Ru(NO)}O59]10- anion was isolated as DMAH+ (DMA-2) and mixed inorganic cation (CsKNa-2) salts and characterized by XRD, HPLC-ICP-AES, EA and TGA techniques. X-ray analysis shows the presence of the {Ru(NO)}-group in the 6-membered ("equatorial") belt of the Sb-free hemisphere. The experimental findings were confirmed and interpreted by means of quantum chemical calculations.
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Affiliation(s)
- Anna A Mukhacheva
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia. and Novosibirsk State University, Pirogova str. 2, 630090, Novosibirsk, Russia.
| | - Alexandra A Shmakova
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia.
| | - Victoria V Volchek
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia.
| | - Tamara E Romanova
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia.
| | - Enrico Benassi
- Novosibirsk State University, Pirogova str. 2, 630090, Novosibirsk, Russia. and Lanzhou Institute of Chemical Physics, CAS, 10 Tianshui Middle Rd, Chengguan Qu, Lanzhou Shi, Gansu Sheng 730000, People's Republic of China
| | - Artem L Gushchin
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia. and Novosibirsk State University, Pirogova str. 2, 630090, Novosibirsk, Russia.
| | - Vadim Yanshole
- Novosibirsk State University, Pirogova str. 2, 630090, Novosibirsk, Russia. and International Tomography Center, Institutskaya str. 3a, 630090, Novosibirsk, Russia
| | - Dmitri G Sheven
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia.
| | - Nikolay B Kompankov
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia.
| | - Pavel A Abramov
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia. and South Ural State University, Chelyabinsk, 454080, Russia
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry, 3 Akad. Lavrentiev Ave, 630090, Novosibirsk, Russia. and Novosibirsk State University, Pirogova str. 2, 630090, Novosibirsk, Russia.
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Self-Assembly in Polyoxometalate and Metal Coordination-Based Systems: Synthetic Approaches and Developments. INORGANICS 2018. [DOI: 10.3390/inorganics6030071] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Utilizing new experimental approaches and gradual understanding of the underlying chemical processes has led to advances in the self-assembly of inorganic and metal–organic compounds at a very fast pace over the last decades. Exploitation of unveiled information originating from initial experimental observations has sparked the development of new families of compounds with unique structural characteristics and functionalities. The main source of inspiration for numerous research groups originated from the implementation of the design element along with the discovery of new chemical components which can self-assemble into complex structures with wide range of sizes, topologies and functionalities. Not only do self-assembled inorganic and metal–organic chemical systems belong to families of compounds with configurable structures, but also have a vast array of physical properties which reflect the chemical information stored in the various “modular” molecular subunits. The purpose of this short review article is not the exhaustive discussion of the broad field of inorganic and metal–organic chemical systems, but the discussion of some representative examples from each category which demonstrate the implementation of new synthetic approaches and design principles.
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