Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors
The in situ spectroelectrochemical cyclic voltammetric studies of the antimony-monocapped nickel(II) and iron(II) tris-pyridineoximates with a labile triethylantimony cross-linking group and Zr(IV)/Hf(IV) phthalocyaninate complexes were performed in order to understand the nature of the redox events...
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2021-01-01
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| author | Yan Z. Voloshin Semyon V. Dudkin Svetlana A. Belova Daniel Gherca Dumitru Samohvalov Corina-Mihaela Manta Maria-Andreea Lungan Samuel M. Meier-Menches Peter Rapta Denisa Darvasiová Michal Malček Armando J. L. Pombeiro Luísa M. D. R. S. Martins Vladimir B. Arion |
| author_facet | Yan Z. Voloshin Semyon V. Dudkin Svetlana A. Belova Daniel Gherca Dumitru Samohvalov Corina-Mihaela Manta Maria-Andreea Lungan Samuel M. Meier-Menches Peter Rapta Denisa Darvasiová Michal Malček Armando J. L. Pombeiro Luísa M. D. R. S. Martins Vladimir B. Arion |
| author_sort | Yan Z. Voloshin |
| collection | DOAJ |
| description | The in situ spectroelectrochemical cyclic voltammetric studies of the antimony-monocapped nickel(II) and iron(II) tris-pyridineoximates with a labile triethylantimony cross-linking group and Zr(IV)/Hf(IV) phthalocyaninate complexes were performed in order to understand the nature of the redox events in the molecules of heterodinuclear zirconium(IV) and hafnium(IV) phthalocyaninate-capped derivatives. Electronic structures of their 1e-oxidized and 1e-electron-reduced forms were experimentally studied by electron paramagnetic resonance (EPR) spectroscopy and UV−vis−near-IR spectroelectrochemical experiments and supported by density functional theory (DFT) calculations. The investigated hybrid molecular systems that combine a transition metal (pseudo)clathrochelate and a Zr/Hf-phthalocyaninate moiety exhibit quite rich redox activity both in the cathodic and in the anodic region. These binuclear compounds and their precursors were tested as potential catalysts in oxidation reactions of cyclohexane and the results are discussed. |
| first_indexed | 2024-03-09T05:12:50Z |
| format | Article |
| id | doaj.art-3b3ea879b1e048fe97cb3a4b03da0685 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T05:12:50Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-3b3ea879b1e048fe97cb3a4b03da06852023-12-03T12:47:11ZengMDPI AGMolecules1420-30492021-01-0126233610.3390/molecules26020336Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their PrecursorsYan Z. Voloshin0Semyon V. Dudkin1Svetlana A. Belova2Daniel Gherca3Dumitru Samohvalov4Corina-Mihaela Manta5Maria-Andreea Lungan6Samuel M. Meier-Menches7Peter Rapta8Denisa Darvasiová9Michal Malček10Armando J. L. Pombeiro11Luísa M. D. R. S. Martins12Vladimir B. Arion13Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, RussiaNesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, RussiaSara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, RomaniaSara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, RomaniaSara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, RomaniaSara Pharm Solutions S.R.L., 266-268 Calea Rahovei, 050912 Bucharest, RomaniaDepartment of Analytical Chemistry, University of Vienna, Währinger Strasse 38, A-1090 Vienna, AustriaInstitute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaInstitute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaInstitute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, SlovakiaCentro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalCentro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalInstitute of Inorganic Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, AustriaThe in situ spectroelectrochemical cyclic voltammetric studies of the antimony-monocapped nickel(II) and iron(II) tris-pyridineoximates with a labile triethylantimony cross-linking group and Zr(IV)/Hf(IV) phthalocyaninate complexes were performed in order to understand the nature of the redox events in the molecules of heterodinuclear zirconium(IV) and hafnium(IV) phthalocyaninate-capped derivatives. Electronic structures of their 1e-oxidized and 1e-electron-reduced forms were experimentally studied by electron paramagnetic resonance (EPR) spectroscopy and UV−vis−near-IR spectroelectrochemical experiments and supported by density functional theory (DFT) calculations. The investigated hybrid molecular systems that combine a transition metal (pseudo)clathrochelate and a Zr/Hf-phthalocyaninate moiety exhibit quite rich redox activity both in the cathodic and in the anodic region. These binuclear compounds and their precursors were tested as potential catalysts in oxidation reactions of cyclohexane and the results are discussed.https://www.mdpi.com/1420-3049/26/2/336clathrochelatesphthalocyanineszirconium(IV)hafnium(IV)nickel(II)iron(II) |
| spellingShingle | Yan Z. Voloshin Semyon V. Dudkin Svetlana A. Belova Daniel Gherca Dumitru Samohvalov Corina-Mihaela Manta Maria-Andreea Lungan Samuel M. Meier-Menches Peter Rapta Denisa Darvasiová Michal Malček Armando J. L. Pombeiro Luísa M. D. R. S. Martins Vladimir B. Arion Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors Molecules clathrochelates phthalocyanines zirconium(IV) hafnium(IV) nickel(II) iron(II) |
| title | Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors |
| title_full | Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors |
| title_fullStr | Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors |
| title_full_unstemmed | Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors |
| title_short | Spectroelectrochemical Properties and Catalytic Activity in Cyclohexane Oxidation of the Hybrid Zr/Hf-Phthalocyaninate-Capped Nickel(II) and Iron(II) tris-Pyridineoximates and Their Precursors |
| title_sort | spectroelectrochemical properties and catalytic activity in cyclohexane oxidation of the hybrid zr hf phthalocyaninate capped nickel ii and iron ii tris pyridineoximates and their precursors |
| topic | clathrochelates phthalocyanines zirconium(IV) hafnium(IV) nickel(II) iron(II) |
| url | https://www.mdpi.com/1420-3049/26/2/336 |
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