| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
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 984 10 |
| Ultima descărcare din IBN: 2023-04-27 23:13 |
| Căutarea după subiecte similare conform CZU |
| 546.88+548 (1) |
| Chimie anorganică (450) |
| Cristalografie (54) |
 SM ISO690:2012CUBA, Lidia, BOUROSH, Pavlina, KRAVTSOV, Victor, GORINCIOI, Elena, DRAGANCEA, Diana. Oxido- and dioxidovanadium(V) complexes with o-vanillin semicarbazone: synthesis and crystal structure. In: Chemistry Journal of Moldova, 2018, nr. 1(13), pp. 36-45. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2018.477 |
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  Chemistry Journal of Moldova |
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| Numărul 1(13) / 2018 / ISSN 1857-1727 /ISSNe 2345-1688 | ||||||
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| DOI:https://doi.org/10.19261/cjm.2018.477 | ||||||
| CZU: 546.88+548 | ||||||
| Pag. 36-45 | ||||||
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| Rezumat | ||||||
Two mononuclear oxido- and dioxidovanadium(V) coordination compounds [VO(HL)(EtO)(EtOH)0.6(H2O)0.4][VO(HL)(SO4)(EtO)]·0.4EtOH (1) and [VO2(HL)]·2H2O (2) have been prepared by reactions of o-vanillin semicarbazone (H2L) with VOSO4·5H2O and NH4VO3 in 1:2 and 1:1 molar ratios in alcohol and alcohol/ammonia mixture. The single crystal X-ray diffraction study shows that in these compounds, the monoanionic HLˉ organic ligand with deprotonated hydroxy group coordinates in the ONO tridentate mode, and the methoxy-group does not participate in coordination to the metal center. Compound 1 comprises complex cations and complex anions with VO3+ core and distorted octahedral geometries of vanadium atom. In complex 2, vanadium has a distorted square-pyramidal environment typical for complexes with VO2+ core. |
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| Cuvinte-cheie oxidovanadium(V), dioxidovanadium(V), o-vanillin semicarbazone, NMR spectroscopy, X-ray diffraction study. |
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