STRUCTURE OF 3-METHYL-3,4-DIHYDRO-1H-2,3-BENZOTHIAZINE 2,2-DIOXIDE

被引：2
|
作者：
RIVERO, BE [1 ]
BIANCHET, MA [1 ]
BRAVO, RD [1 ]
机构：
[1] UNIV NACL LUJAN,DEPT CIENCIAS BAS,RA-6700 LUJAN,ARGENTINA
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷
关键词：
D O I：
10.1107/S0108270191007539
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
C9H11NO2S, M(r) = 197.26, triclinic, P1BAR, a = 9.355 (4), b = 10.001 (3), c = 10.787 (5) angstrom, alpha = 86.93 (3), beta = 88.88 (3), gamma = 69.56 (3)-degrees, V = 944 (1) angstrom 3, Z = 4, D(x) = 1.387 Mg m-3, lambda(Mo K-alpha) = 0.71073 angstrom, mu = 0.294 mm-1, F(000) = 416, T = 293 K, R = 0.045 for 2057 observed reflections. There are two crystallographically independent molecules per asymmetric unit and the heterocyclic ring in both takes a twisted half-chair conformation. The S atoms are tetrahedrally coordinated with a dihedral angle between the C-S-N and O-S-O planes of 89.51 (14)-degrees. The methyl groups are almost axial with torsional angles C(1A,B)-S(2A,B)-N(3A,B)-C(11A,B) of 70.73 (31) and 74.52 (35)-degrees, respectively.
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页码：2674 / 2676
页数：3
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