Structure of Potassium and Cesium Barbiturates

被引:2
|
作者
Golovnev, N. N. [1 ]
Molokeev, M. S. [1 ,2 ,3 ]
Lesnikov, M. K. [1 ]
机构
[1] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[2] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[3] Far Eastern State Transport Univ, Khabarovsk 680021, Russia
关键词
potassium and cesium barbiturates; synthesis; structure; thermal decomposition; CRYSTAL-STRUCTURE; THERMAL-PROPERTIES; 1,3-DIETHYL-2-THIOBARBITURATE; 2-THIOBARBITURATE; ACID;
D O I
10.1134/S0036023618100078
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structures of catena-[K((6)-Hba-O,O,O,O,O,O)] (I) and catena-[Cs((6)-Hba-O,O,O,O,O,O)] (II), where H(2)ba is barbituric acid C4H4N2O3, were characterized by powder X-ray diffraction. Crystallographic data: a = 14.1603 (4) angstrom, b = 3.68977 (9) angstrom, c = 10.9508 (3) angstrom, = 82.226 (1)degrees, V = 566.90 (3) angstrom(3), space group P2(1)/n, Z = 4 for I; a = 14.652 (1) angstrom, b = 11.7275 (7) angstrom, c = 3.8098 (3) angstrom, = 79.140 (6)degrees, V = 642.90 (8) angstrom(3), space group C2/m, Z = 4 for II. The structural topologies of alkali metal complexes with barbituric acid and some its derivatives were compared. The thermal stability of complexes I and II in an air atmosphere was studied.
引用
收藏
页码:1315 / 1321
页数:7
相关论文
共 50 条