Zabel, Manfred and Poznyak, A. L. and Pavlovskii, V. I. (2007) Crystal structures of calcium and barium oxalato(ethylenediamine-N,N'-diacetato)x chromates(III) M[Cr(Edda)(C2O4)](2)center dot 5H(2)O (M = Ca, Ba). JOURNAL OF STRUCTURAL CHEMISTRY, 48 (4). pp. 698-703. ISSN 0022-4766, 1573-8779
Full text not available from this repository. (Request a copy)Abstract
The crystal structure of Ca[Cr(Edda)(C2O4)](2)center dot 5H(2)O and Ba[Cr(Edda)(C2O4)](2)center dot 5H(2)O (H(2)Edda - ethylenediamine-N,N'-diacetic acid) was determined by X-ray diffraction analysis. The nearest environment of alkaline earth ions consists of the oxygen atoms of the neighboring [Cr(Edda)(C2O4)](-) complex ions (five for Ca and four for Ba) and the water molecules that complete the coordination number to eight. Two atoms and two complex ions are linked into a ring; each Ca atom in the ring is bonded by the oxalate ion bridge to another anion. This results in a centrosymmetric hexanuclear supramolecular assembly. The atoms and the complex anions alternate to form an infinite chain, in which each Ba atom is additionally linked via the oxalate ion bridge with one anion.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | VERSATILE BUILDING-BLOCK; MAGNETIC-PROPERTIES; HETEROPOLYMETALLIC SYSTEMS; OXALATE DIANION; SOLID-STATE; COMPLEXES; DESIGN; ACID; OX; FE; crystal structure; chromium(3+) complexes; ethylenediamine-N,N'-diacetic acid; oxalate ligands; calcium and barium salts |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Dec 2020 06:44 |
| Last Modified: | 07 Dec 2020 06:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32564 |
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