Abstract
Two decavanadates (trisH)4[H2V10O28]·10H2O (1) and (trisH)6[V10O28] (2) have been synthesised from NaVO3 or V2O5 in an aqueous solution of tris(hydroxymethyl)aminomethane (tris). Bimetallic derivatives [Cu(OH2)5(trisH)]2[V10O28]·6H2O (3) and [Cu(OH2)3(2–amp)]2(trisH)2 [V10O28]·2H2O (4) were obtained by the addition of CuCl2 or CuCl2 / 2–amp (2–(aminomethyl)pyridine) to the route that gave 2. The products were characterised by single-crystal X-ray diffractometry, thermogravimetric analysis, FTIR, Raman and EPR spectroscopies. Moreover, 4 was effective in bleaching a methylene blue (MB) solution under natural light in acidic media by either degradation of the dye or precipitation of a MB-decavanadate salt depending on the experimental conditions.
Original language | English |
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Article number | 114414 |
Number of pages | 12 |
Journal | Polyhedron |
Volume | 180 |
Early online date | 1 Feb 2020 |
DOIs | |
Publication status | Published - 1 Apr 2020 |
Keywords
- 2-(Aminomethyl)pyridine
- ALKOXIDES
- CLUSTER
- COPPER(II) COMPLEXES
- CRYSTAL-STRUCTURES
- Copper(II)
- Decavanadate
- ION
- Methylene blue
- OXIDATION
- POLYOXOVANADATE
- RAMAN
- Tris(hydroxymethyl)aminomethane
- VANADIUM
- VIBRATIONAL-SPECTRA