X-ray study of the hetero ring flexibility in saturated and partially saturated 3,1-benzoxazin-2-ones and 3,1-benzoxazine-2-thiones [1]
作者:Gy. Argay、A. Kálmán、Á. Kapor、G. Stájer、G. Bernáth
DOI:10.1016/0022-2860(85)85097-3
日期:1985.10
established by X-ray crystallography from diffractometer data. The crystals of the first (I), C 8 H 11 NO 2 , are monoclinic space group P 2 1 / n , with a = 11.266(2), b = 9.638(1), c = 7.500(1) A, β = 109.16(1)°, Z = 4, D c = 1.323 g cm −3 . The crystals of the second (II), C 8 H 11 NOS, are also monoclinic, space group P 2,/ n , with c = 7.681(1), b = 10.007(1), c = 11.207(1) A, β = 106.06(1)°, Z = 4
摘要 标题化合物的结构已通过 X 射线晶体学从衍射仪数据确定。第一个 (I) 的晶体 C 8 H 11 NO 2 是单斜空间群 P 2 1 / n ,a = 11.266(2), b = 9.638(1), c = 7.500(1) A, β = 109.16(1)°,Z = 4,D c = 1.323 g cm -3 。第二个 (II) C 8 H 11 NOS 的晶体也是单斜晶系,空间群 P 2,/ n ,其中 c = 7.681(1), b = 10.007(1), c = 11.207(1) A, β = 106.06(1)°,Z = 4,D c = 1.358 g cm -3 。第三个 (III) C 8 H 12 NOS 的晶体是斜方晶系,空间群 Pbca ,a = 11.862(8), b = 15.751(8), c = 18.375(8) A, Z = 16, D c =