A pyrazine-bridged chain structure of magnesium complex with pyrazine-2,3-dicarboxylic acid

被引：0
|
作者：
PtasiewiczBak, H
Leciejewicz, J
机构：
来源：
POLISH JOURNAL OF CHEMISTRY | 1997年 / 71卷 / 04期
关键词：
magnesium compounds; pyrazine-2,3-dicarboxylates; X-ray crystal structure analysis;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Trisaquo(pyrazine-2,3-dicarboxylato) magnesium(II) monohydrate, MgC6H14N2O8 crystals are monoclinic, Cc, a = 8.444(2) Angstrom, b = 18.153(4) Angstrom, c = 7.416(1) Angstrom, beta = 114.49(3) deg., Z = 4. The structure consists of molecular chains propagating in the [101] direction. Magnesium ions are bridged hy the 2,3-pzdc molecules via the oxygen atom of the monodentate carboxylic group (Mg-O = 2.037 Angstrom) on one side and a (N, O) moiety on the other side (Mg-N = 2.246 Angstrom, Mg-O = 2.056 Angstrom). Three water molecules (mean Mg-O = 2.062 Angstrom) complete a fairly regular octahedral environment around the magnesium ion. An extensive hydrogen bond system is responsible for the stability of the crystal.
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页码：493 / 500
页数：8
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