Spectroscopic and thermochemical investigation of alkaline earth metal salts of 2-oximinopropionate

被引：5
作者：
Apblett, AW
Georgieva, GD
Mague, JT
机构：
[1] Department of Chemistry, Tulane University, New Orleans, LA 70118
来源：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1997年 / 75卷 / 05期
关键词：
crystal structure; alkaline earth; 2-oximinopropionate; thermal decomposition;
D O I：
10.1139/v97-056
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Alkaline earth metal 2-oximinopropionates were prepared by the reaction of sodium 2-oximinopropionate with the respective metal nitrates or chlorides in water at room temperature. These compounds were characterized by infrared and multinuclear NMR spectroscopy and thermogravimetric analysis. The thermal decomposition of the salts occurs in the range 144-188 degrees C and exhibits a trend towards lower temperature with increasing size of the cation. In all cases, the decomposition yields a metal carbonate. The molecular structure of calcium 2-oximinopropionate hydrate was determined by single-crystal X-ray crystallography. Crystal data: C6H10N2O7Ca, MW = 262.24g/mol, triclinic, space group P (1) over bar (No.2), a = 8.954(1) Angstrom, b = 9.3851(7) Angstrom, c = 6.2445(7) Angstrom, alpha = 97.209(8)degrees, beta = 104.917(9)degrees, gamma = 87.250(8)degrees, V = 503.0(2) Angstrom(3), Z = 2, D-calc = 1.73 g cm(-3)R = 0.03 and R-w = 0.04.
引用
收藏
页码：483 / 490
页数：8
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