Alkali metal (Na and K)-mediated supramolecular assembly of oxovanadium(V) complexes: Synthesis and structural characterization |
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| Authors: | Rupam Dinda Paresh Kumar Majhi Parbati Sengupta Sagarika Pasayat Saktiprosad Ghosh Larry R Falvello Thomas CW Mak |
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| Institution: | 1. Department of Chemistry, National Institute of Technology, Rourkela 769008, India;2. Department of Chemistry, Fergusson College, S.C. Road, Pune 411004, India;3. Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata 700 032, India;4. Department of Inorganic Chemistry and Aragon Materials Science Institute, University of Zaragoza, Zaragoza E-50009, Spain;5. Department of Chemistry, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, People’s Republic of China |
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| Abstract: | The syntheses and characterization of alkali metal complexes {VO2L}M(H2O}n] (1 and 2) M = Na+ (1), K+ (2)] of anionic cis-dioxovanadium(V) species (LVO2−) of the Schiff base 2-hydroxybenzoylhydrazone of 2-hydroxybenzaldehyde have been reported. The number of coordinated water molecules in {VO2L}M(H2O}n] decreases as the charge density of the alkali metal ion decreases (n = 5 for Na+ and 1 for K+). These compounds represented M+-mediated supramolecular assembly {VO2L}M(H2O}n]∝ with an infinite polymeric structure containing an alternating array of cis-dioxo vanadium(V), VO2L]−, units and aquated metal ion centres, as confirmed by X-ray crystallographic investigation of both. All the compounds are characterized by elemental analysis, IR, UV–Vis and NMR spectroscopy. |
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| Keywords: | Tridentate ONO donor ligand Oxovanadium(V) complexes X-ray crystal structure Alkali metal ion mediated supramolecular assembly |
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