SYNTHESIS, THERMAL-BEHAVIOR, INFRARED-SPECTRA, AND CRYSTAL-STRUCTURE OF YB2(OH)2(CRO4)2 AND [YB2(OH)2(CRO4)2(H2O)2.5]BULLET-0.5H2O

被引:4
作者
LEPPAAHO, J
VALKONEN, J
机构
[1] University of Jyväskylä, Department of Chemistry, SF-40351 Jyväskylä
关键词
D O I
10.1016/0022-4596(92)90325-P
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The crystal structures of Yb2(OH)2(CrO4)2 and Yb2(OH)2(CrO4)2 · 3H2O were determined by conventional single-crystal X-ray diffraction technique. Crystals of Yb2(OH)2(CrO4)2 are monoclinic, space group P21c (No. 14) with a = 8.057(2)Å, b = 11.297(1)Å, c = 11.915(1)Å and β = 136.67(3), Z = 4, Dx = 5.46Mg m-3. Crystals of Yb2(OH)2(CrO4)2 · 3H2O are orthorhombic, space group Pccn (No. 56) with a = 10.884(2)Å, b = 12.023(1)Å, c = 16.033(8)Å, Z = 8, Dx = 4.22Mg m-3. In both compounds the coordination polyhedron of the eight oxygen atoms around ytterbium atoms is square antiprism. Structures form a three-dimensional network. Thermal behavior was investigated and IR spectra were recorded for both compounds. The thermal decomposition of Yb2(OH)2(CrO4)2 proceeds by a different mechanism than that of Yb2(OH)2(CrO4)2 · 3H2O. © 1992 Academic Press, Inc.
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页码:364 / 375
页数:12
相关论文
共 18 条
[1]  
ANOSHINA NP, 1970, RUSS J INORG CHEM, V15, P897
[2]  
BASHILOVA NI, 1979, RUSS J INORG CHEM, V24, P133
[3]  
BASHILOVA NI, 1979, RUSS J INORG CHEM, V24, P1888
[4]  
BASHILOVA NI, 1975, RUSS J INORG CHEM, V20, P810
[5]  
BASHILOVA NI, 1979, RUSS J INORG CHEM, V24, P629
[6]   CRYSTAL-GROWTH AND CRYSTAL-STRUCTURE OF KTB(CRO4)2 [J].
BUENO, I ;
PARADA, C ;
HERMOSO, JA ;
VEGAS, A ;
MARTINEZRIPOLL, M .
JOURNAL OF SOLID STATE CHEMISTRY, 1990, 85 (01) :83-87
[7]   CRYSTAL-GROWTH, STRUCTURE, AND PROPERTIES OF KLA(CRO4)2 [J].
BUENO, I ;
PARADA, C ;
GARCIA, O ;
PUEBLA, EG ;
MONGE, A ;
VALERO, CR .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1988, (07) :1911-1914
[8]   CRYSTAL-GROWTH AND STRUCTURAL STUDY OF THE NEW SERIES Y(OH)CRO4, DY-LU(OH)CRO4 - CRYSTAL-STRUCTURE OF ER(OH)CRO4 [J].
BUENO, I ;
PARADA, C ;
MONGE, A ;
VALERO, CR .
JOURNAL OF SOLID STATE CHEMISTRY, 1991, 90 (02) :263-269
[9]   SYNTHESIS, CRYSTAL-GROWTH, AND STRUCTURE OF LA(OH)CRO4 [J].
BUENO, I ;
PARADA, C ;
PUEBLA, EG ;
MONGE, A ;
VALERO, CR .
JOURNAL OF SOLID STATE CHEMISTRY, 1989, 78 (01) :78-83
[10]  
Frenz B.A, 1978, COMPUTING CRYSTALLOG, P64