SYNTHESIS, STRUCTURE AND SOLID-STATE POLYMERIZATION OF DIAQUABIS(PROPYNOATO)MAGNESIUM

被引：10

作者：

CASE, CB ^{[1
]}

FOXMAN, BM ^{[1
]}

机构：

[1] BRANDEIS UNIV, DEPT CHEM, WALTHAM, MA 02254 USA

来源：

INORGANICA CHIMICA ACTA | 1994年 / 222卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

CRYSTAL STRUCTURES; SOLID STATE POLYMERIZATION; IRRADIATION; MAGNESIUM COMPLEXES; PROPYNOATO COMPLEXES; AQUA COMPLEXES;

D O I：

10.1016/0020-1693(94)03926-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Upon irradiation with X-rays or Co-60 gamma-rays, diaquabis(propynoato)magnesium (5) is converted to the corresponding deep brown polypropynoate. The crystal structure of 5 contains an infinite set of short contacts (3.698 angstrom) between nearly parallel acetylene moieties; the presence of such a chain is a requirement for a propynoate material to be sensitive to ionizing radiation. Crystals of 5, Mg(O2CC=CH)2(OH2)2, belong to the orthorhombic system, space group Pbca, a = 6.901(2), b = 16.134(3), c = 7.391(2) angstrom, Z=4. Full-matrix least-squares refinement of positional and displacement parameters for all atoms, using 888 data for which \F(o)\ less-than-or-equal-to 3.92sigma(\F(o)\) led to R = 0.035; R(w) = 0.049.

引用

页码：339 / 343

页数：5

共 25 条

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[2]

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