Studies on the Polymerization of Acrolein Oxime. XVII. The Structure of the β-Form of the Bicyclic Trimer from Methacrylaldehyde Oxime
作者:Tadatoshi Ota、Seizo Masuda、Hitoshi Tanaka、Yasuo Inazawa、Masaru Kido
DOI:10.1246/bcsj.56.487
日期:1983.2
The thermal oligomerization of methacrylaldehyde oxime leads to 2,4,7-trimethylperhydroisoxazolo[2,3-a]pyridine-2,7-dicarbaldehyde dioxime (1). The β-form of 1 was separated, and its crystal structure was determined by X-ray analysis. It is monoclinic with space group P21/c, a=13.274(11), b=8.652(7), c=11.618(14) Å, β=96.73(8)°, and Z=4. The molecules are linked by two N···O hydrogen bonds, with the N(13)···O(14) and N(8)···O(18) distance of 2.824(5) and 2.897(5) Å respectively.
甲基丙烯醛oxime的热寡聚化生成了2,4,7-三甲基过氢异恶唑[2,3-a]吡啶-2,7-二甲醛二氧亚胺(1)。分子的β型被分离,其晶体结构通过X射线分析确定。该晶体为单斜晶系,空间群为P21/c,a=13.274(11) Å,b=8.652(7) Å,c=11.618(14) Å,β=96.73(8)°,Z=4。分子通过两个N···O氢键相连,N(13)···O(14)和N(8)···O(18)之间的距离分别为2.824(5) Å和2.897(5) Å。