CRYSTALLINE COMPLEXES OF ERBIUM BROMIDE AND LUTETIUM BROMIDE WITH ACETAMIDE
New acetamide complexes of erbium and lutetium bromides LnBr<sub>3</sub>4AA4H<sub>2</sub>O, (Ln = Er, Lu; AA acetamide) were synthesized. The resulting complexes were characterized by chemical analysis, infrared spectroscopy and X-ray diffr...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Russian |
| Published: |
MIREA - Russian Technological University
2013-10-01
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| Series: | Тонкие химические технологии |
| Subjects: | |
| Online Access: | https://www.finechem-mirea.ru/jour/article/view/533 |
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| Summary: | New acetamide complexes of erbium and lutetium bromides LnBr<sub>3</sub>4AA4H<sub>2</sub>O, (Ln = Er, Lu; AA acetamide) were synthesized. The resulting complexes were characterized by chemical analysis, infrared spectroscopy and X-ray diffraction method. It is shown that the coordination of the ligands (water molecules and acetamide) by the lanthanide atoms occurs through the oxygen atoms, and the coordination polyhedron is a distorted square antiprism (CN = 8). The bromide ions are not coordinated and are located in the outer sphere. The degree of ionic character of the lanthanide–acetamide bonds was estimated. The structural characteristics of the complexes [LnL<sub>4</sub>(H<sub>2</sub>O)<sub>4</sub>] Br<sub>3</sub> (Ln = Er, Lu; L = AA) were compared. |
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| ISSN: | 2410-6593 2686-7575 |