BARIUM COPPER(II) OXOCARBON COMPOUNDS - SYNTHESIS, CRYSTAL-STRUCTURES AND THERMAL BEHAVIORS OF [BA(H2O)(5)][CU(C2O4)(2)(H2O)] AND [BA(C4O4)(0.5)(H2O)(2)](2)[CU(C4O4)(2)(H2O)(2)]

被引：39
|
作者：
BOUAYAD, A
TROMBE, JC
GLEIZES, A
机构：
[1] CTR ELABORAT MAT & ETUD STRUCT,CNRS,UPR 8011,OPT ELECTR LAB,F-31055 TOULOUSE,FRANCE
[2] INST NATL POLYTECH TOULOUSE,ECOLE NATL SUPER CHIM TOULOUSE,MAT LAB,CNRS,URA 445,F-31077 TOULOUSE,FRANCE
来源：
INORGANICA CHIMICA ACTA | 1995年 / 230卷 / 1-2期
关键词：
CRYSTAL STRUCTURES; BARIUM COMPLEXES; COPPER COMPLEXES; OXOCARBON COMPLEXES; OXALATE COMPLEXES; SQUARATE COMPLEXES;
D O I：
10.1016/0020-1693(94)04187-Z
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
[Ba(H2O)(5)][Cu(C2O4)(2)(H2O)] and [Ba(C4O4)(0.5)(H2O)(2)](2)[Cu(C4O4)(2)(H2O)(2)] were obtained as single crystals in water. The structures were determined from X-ray diffraction data. [Ba(H2O)(5)][Cu(C2O4)(2)(H2O)]: triclinic, space group P (1) over bar, a=9.209(2), b=10.938(1), c=6.547(1) Angstrom, alpha=100.83(1), beta=99.65(2), gamma=85.45(2)degrees Z=2; [Ba(C4O4)(0.5)(H2O)(2)](2)[Cu(C4O4)(2)(H2O)(2)]: triclinic, space group P (1) over bar, a=7.752(1), b=10.445(2), c=7.420(1)Angstrom, alpha=99.24(1), beta=113.20(1), gamma=109.87(1)degrees, Z=1. They are made of cationic layers separated by anions [Cu(C2O4)(2)(H2O)](2-) and [Cu(C4O4)(2)(H2O)(2)](2-), respectively. Both compounds were submitted to thermal gravimetric and differential analyses in an oxygenated atmosphere, up to 950 degrees C. Final decomposition products were (i) BaCuO2 with small amounts of BaCO3 and CuO for [Ba(H2O)(5)][Cu(C2O4)(2)(H2O)], and (ii) an equimolecular mixture of BaCuO2 and BaCO3 for [Ba(C4O4)(0.5)(H2O)(2)](2)[Cu(C4O4)(2)(H2O)(2)].
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页码：1 / 7
页数：7
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