Two new barium borate bromides: Ba2BO3Br and Ba3BO3Br3 |
| |
| Institution: | 1. Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal;2. Department of Immunology, Weizmann Institute of Science, Rehovot, Israel;3. Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Faculty of Medicine (Polo I), Coimbra, Portugal;4. Department of Physiology and Pharmacology, Sackler School of Medicine, Room 607, Tel Aviv University, Tel Aviv, Israel;5. Flow Cytometry unit, Biological Services Department, Weizmann Institute of Science, Rehovot, Israel;6. Chemistry and Biochemistry Center, Sciences Faculty, Universidade de Lisboa, Lisbon, Portugal;7. Immunology research center, Tel Aviv Sourasky Medical Center (TASMC), Tel Aviv, Israel;8. Faculty of Pharmacy (FFUC), University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, Coimbra, Portugal;1. MOE Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China;2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China |
| |
| Abstract: | Two new barium borate bromide crystals, Ba2BO3Br and Ba3BO3Br3, have been obtained by spontaneous crystallization. Ba2BO3Br crystallizes in P−3m1 space group, with cell parameters of a = 5.5157(10) Å, c = 11.019(4) Å, and Z = 2, its structure is build up by alternately stacking along c-axis of Ba2(BO3)2]2− layers and bromide Ba2Br2]2+ layers. The solved structure is analog to Ba2(BO3)1−x(CO3)xCl1+x except the interstitial halogen atoms at (0, 0, 1/2) is missing and accordingly the partly CO3 substitution for BO3 has not been observed. Ba3BO3Br3 crystallizes in a new structure type with P−1 space group and cell parameters of a = 9.280(4) Å, b = 9.349(7) Å, c = 13.025(9) Å, α = 92.71(3)°, β = 98.29(3)°, γ = 116.200(18)° and Z = 4. The basic structural unit in Ba3BO3Br3 is the clusters composed of 4 BO3 groups and 12 Ba atoms, which in turn are linked by eight Ba–O bonds with other four clusters to form sheets extend in the (001) plane. |
| |
| Keywords: | Borate Bromide Crystal structure |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
