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| Titel: |
A NEW PERSPECTIVE ON VANADYL TARTRATE DIMERS. PART II. STRUCTURE AND SPECTROSCOPIC PROPERTIES OF CALCIUM VANADYL TARTRATE TETRAHYDRATE |
| Auteur: |
Garcia-Jaca, Javier Rojo, Teofilo Pizarro, Jose L. Goni, Aintzane Arriortua, Maria I. |
| Verschenen in: |
Journal of coordination chemistry |
| Paginering: | Jaargang 30 (1993) nr. 3-4 pagina's 327-336 |
| Jaar: |
1993-12-01 |
| Inhoud: |
The calcium vanadyl tartrate complex [Ca(VO)(d,l-C4H2O6)(H2O)4] has been synthesized and characterized by spectroscopic methods. Its crystal structure was solved by X-ray methods. The compound is monoclinic, space group P21/c, with a = 8.0282(5), b = 17.1568(8), c = 7.6113(3)Å, β = 94.269(4)° and Z = 4. The structure consists of centrosymmetric vanadyl tartrate dimers, [(VO)(d,l-C4H2O6)]24-, and calcium cations placed between them. As a result, dimers form chains in the [101] direction. Neighbouring chains are linked by the coordination of the calcium ion to the oxygen atom of a vanadyl group of a different chain, thus forming a two-dimensional structure. Different layers are linked by hydrogen bonds. Spectroscopic studies show the existence of intra-dimeric interactions between vanadium atoms. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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