THE REARRANGEMENT OF COUMARIN-4-ACETHYDRAZIDES - STRUCTURE OF 1-AMINO-4-(2-HYDROXY-4-METHOXYPHENYL)-2,6(1H,3H)-PYRIDINEDIONE

被引：1
|
作者：
BAGGETT, N
CASE, MA
FOULON, JD
GRAY, CJ
HAMOR, TA
机构：
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷
关键词：
D O I：
10.1107/S0108270190013890
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
C12H12N2O4, M(r) = 248.2, triclinic, P1BAR, a = 6.793 (2), b = 7.209 (11), c = 11.405 (4) angstrom, alpha = 88.77 (7), beta = 89.06 (2), gamma = 74.62 (6)-degrees, V = 538.35 angstrom 3, Z = 2, D(x) = 1.531 g cm-3, lambda(Mo K-alpha) = 0.71069 angstrom, mu = 0.73 cm-1, F(000) = 260.0, T = 293 K, R = 0.0452 for 1011 observed reflections. A substituted 4-phenyl-2,6(1H,3H)-pyridinedione crystallizes with coplanar rings [angle between ring planes 2.3 (3)-degrees]. No pi-delocalization between the rings is present [ring to ring bond length 1.481 (4) angstrom] and the double bond is localized within the heterocycle [bond length 1.356 (5) angstrom]. The heterocyclic moiety is planar (r.m.s. deviation from plane = 0.013 angstrom).
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页码：1670 / 1672
页数：3
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