THE FIRST HYDROGENCARBONATES WITH A TRIMERIC [H-2(CO3)(3)](4-) GROUP - PREPARATION AND CRYSTAL-STRUCTURE OF RB4H2(CO3)(3)-CENTER-DOT-H2O AND K4H2(CO3)(3)-CENTER-DOT-1.5H(2)O

被引：11
作者：
CIRPUS, V [1 ]
ADAM, A [1 ]
机构：
[1] UNIV COLOGNE,INST ANORGAN CHEM,D-50939 COLOGNE,GERMANY
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1995年 / 621卷 / 07期
关键词：
TETRARUBIDIUM DIHYDROGENTRIS(CARBONATE) HYDRATE; TETRAPOTASSIUM DIHYDROGENTRIS(CARBONATE) SESQUIHYDRATE; PREPARATION; CRYSTAL STRUCTURE; THERMAL DECOMPOSITION;
D O I：
10.1002/zaac.19956210715
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Rb4H2(CO3)(3) . H2O and K4H2(CO3)(3) . 1,5 H2O were prepared by means of the reaction of (CH3)(2)CO3 with RbOH resp. KOH in aqueous methanole. Trimer [H-2(CO3)(3)](4-)-anions were found in the crystal structure of Rb4H2(CO3)(3) . H2O (orthorhombic, Pnma (no. 62), a = 1218.0(1) pm, b = 1572.3(6) pm, c = 615.9(1) pm, V-EZ = 1179.5(5). 10(6) pm(3), Z = 4, R1(I greater than or equal to 2 sigma(I)) = 0.027, wR2(I greater than or equal to 2 sigma(I)) = 0.055). K4H2(CO3)(3) . 1,5 H2O crystallizes in an OD-structure. The determined superposition structure (orthorhombic, Pbam (no. 55), a = 1161.8(1)pm, b = 597.0(1)pm, c = 383.85(3)pm, V-EZ = 266.3(1). 10(6) pm(3), Z = 1, R1(I greater than or equal to 2 sigma(I)) = 0.035, wR2(I greater than or equal to 2 sigma(I)) = 0.074) can be derived from the structure of the rubidium compound. The thermal decomposition of the substances is discussed.
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页码：1197 / 1204
页数：8
相关论文
共 24 条
[1]  
ADAM A, 1994, IN PRESS Z ANORG ALL, V620
[2]  
BEHRENDT W, 1980, Z ANORG ALLG CHEM, V521, P135
[3]  
BERTHOLLET CL, 1809, MEM PHYS CHIM SOC AR, V2, P472
[4]   EMPIRICAL BOND-STRENGTH BOND-LENGTH CURVES FOR OXIDES [J].
BROWN, ID ;
SHANNON, RD .
ACTA CRYSTALLOGRAPHICA SECTION A, 1973, A 29 (MAY1) :266-282
[5]   NEUTRON-DIFFRACTION STUDY OF SODIUM SESQUICARBONATE DIHYDRATE [J].
CHOI, CS ;
MIGHELL, AD .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1982, 38 (NOV) :2874-2876
[6]  
DEFORCAND, 1909, CR HEBD ACAD SCI, V149, P872
[7]  
DIAMENT R, 1967, CR ACAD SCI C CHIM, V264, P504
[8]  
DORNBERGERSCHIF.K, 1966, LEHRGANG OD STRUKTUR
[9]  
Faurholt C, 1927, Z PHYS CHEM-STOCH VE, V126, P211
[10]  
Faurholt C, 1927, Z PHYS CHEM-STOCH VE, V126, P72
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