STRUCTURE OF 8-AMINO-3,4-DIHYDRO-2H,6H-PYRIMIDO[2,1-B][1,3]THIAZIN-6-ONE

被引：4
|
作者：
ANTOLINI, L [1 ]
PECORARI, P [1 ]
机构：
[1] UNIV MODENA,DIPARTIMENTO SCI FARMACEUT,I-41100 MODENA,ITALY
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷
关键词：
D O I：
10.1107/S0108270191006121
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
C7H9N3OS, M(r) = 183.23, monoclinic, P2(1)/c, a = 7.152 (2), b = 15.407 (3), c = 7.493 (2) angstrom, beta = 101.36 (3)-degrees, V = 809.5 (9) angstrom 3, Z = 4, D(x) = 1.50 g cm-3, lambda(Mo K-alpha) = 0.7107 angstrom, mu = 3.0 cm-1, F(000) = 384, T = 293 K, R = 0.040 for 1500 unique reflections with I greater-than-or-equal-to 3-sigma(I). The structure consists of statistically disordered molecules with occupancy factors of 0.815 and 0.185. The disorder arises from two alternative half-chair conformations of the thiazine ring. The crystal packing is determined by intermolecular hydrogen-bonding interactions.
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页码：2413 / 2415
页数：3
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