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https://hdl.handle.net/20.500.14279/19122
Title: | Controlled one pot synthesis of polyoxofluorovanadate molecular hybrids exhibiting peroxidase like activity | Authors: | Nicolaou, Maria Drouza, Chryssoula Keramidas, Anastasios D. |
Major Field of Science: | Natural Sciences | Field Category: | Chemical Sciences | Keywords: | Bis(Acetylacetonato)Oxovanadium(IV);Vanadium Compounds;Oxovanadium IV | Issue Date: | 2019 | Source: | New Journal of Chemistry, 2019, vol. 43, no. 45, pp. 17595-17602 | Volume: | 43 | Issue: | 45 | Start page: | 17595 | End page: | 17602 | Journal: | New Journal of Chemistry | Abstract: | Three unique mixed-valence polyoxofluorovanadate clusters have been synthesized through a facile preparation process. The structure of these clusters is controlled by the addition of organic ligands. Single-crystal X-ray diffraction revealed that the clusters have the formula (XyH2)4[VV10VIV4O14(μ-O)10(μ3-O)10(μ3-F)2F4] (1), (Xy = m-xylylenediamine), (pyH)4(H)2[VV10VIV2O12(μ-O)8(μ3-O)10(μ3-F)2(pic)2] (2) and (pyH)4(H)3(Na+)[VV7VIV2O9(μ-O)8(μ3-O)4(μ5-F)(pic)4]2 (3), (py = pyridine, pic− = picolinate), with 2 and 3 representing the first examples of polyoxofluorovanadate clusters coordinated to a chelating ligand. The electron paramagnetic resonance (EPR) spectroscopy of 1 revealed that the spins of the VIV centers are coupled to each other, in contrast to the isolated spins of the isostructural [VV12VIV2O16(μ-O)10(μ3-O)10(μ3-F)2(L)2]6−, where L: im = imidazole (4); py (5). The trigonal bipyramidal coordinated VV atoms of 1, 4 and 5 mimic the structure of the active site of the vanadium dependent peroxidases and 4 and 5 exhibit peroxidase like activity. | URI: | https://hdl.handle.net/20.500.14279/19122 | ISSN: | 13699261 | DOI: | 10.1039/C9NJ01999E | Rights: | © The Royal Society of Chemistry Attribution-NonCommercial-NoDerivatives 4.0 International |
Type: | Article | Affiliation : | University of Cyprus Cyprus University of Technology |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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