Preparation, crystal structure, thermal decomposition, and vibrational spectra of [Co(NH3)6]2[Be4O(CO3)6] • 10 H2O

被引：0
作者：
Dahm, M [1 ]
Adam, A [1 ]
机构：
[1] Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2000年 / 626卷 / 02期
关键词：
beryllium; crystal structure; vibrational spectroscopy; thermal analysis;
D O I：
10.1002/(SICI)1521-3749(200002)626:2<494::AID-ZAAC494>3.0.CO;2-R
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
[Co(NH3)(6)](2)[Be4O(CO3)(6)] . 10H(2)O is a suitable compound for the quantitative determination of beryllium. It can be obtained by reaction of aqueous solutions of carbonatoberyllate with [CO(NH3)(6)]Cl-3. The crystal structure (trigonal-rhombohedral, R3c (Nr. 161), a = 1071,6(1)pm, c = 5549,4(9) pm, V-EZ = 5519(1) . 10(6) pm(3), Z = 6, R1(I greater than or equal to 2 sigma(I)) = 0,037, wR2(I greater than or equal to 2 sigma(I)) = 0,094) contains [Co(NH3)(6)](3+)- and [Be4O(CO3)(6)](6-) ions, which are directly hydrogen bonded as well as with water molecules. The complex cations and anions occupy the positions of a distorted anti-CaF2-type. The thermal decomposition, IR and Raman spectra are presented and discussed.
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页码：494 / 501
页数：8
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