- 作者: 翁春和;王瑜;葉茂榮
- 作者服務機構: Department of Chemistry, National Taiwan University, Taipei, Taiwan, R.O.C.
- 中文摘要: The title compound (M/sub r/=373) crystalizes in the othorhombic space group P ban with a=10.410(2), b=11.658(4), c=23.108(3).ANG., V=2804.4.ANG./sup 3/, Z=8. The singlecrystal intensity data were collected using MoK/sub .alpha./ raadiation (.lambda.=0.7093.alpha.) at room temperature. The crystal and molecular structure was solved with the final agreement index R=0.039 for 1046 observed reflections. The bond lengths N(1)-C(7) and C(7)-C(8) of the title compound are slightly longer than those of 3-substituted sydnone derivatives. This may be attributed to the steric effect arising from the interaction of the phenyl ring and the 4-substituent with the neighboring atoms of sydnone ring. Both the title compound and 4-acetyl-3-(p-tolyl)sydnone have smaller dihedral angles between the sydone ring and the plane of the sp/sup 2/ orbital of the double bond of the 4-substituent and both have shorter C(7)-C(9) bond lengths than those of other similar sydnone derivatives.
- 英文摘要: --
- 中文關鍵字: Sydnone derivative; crystal structure.
- 英文關鍵字: Sydnone derivative; crystal structure.