Structure of an electronically stabilized carbonyl ylide
作者:Eugene P. Janulis、Anthony J. Arduengo
DOI:10.1021/ja00356a044
日期:1983.9
Structure cristalline du tetrakis (trifluoromethyl) cyclopentadienure du tetramethyluronium. Le compose C 14 H 12 N 2 OF 12 cristallise dans le groupe P2 1 /c avec a=995,1, b=1320 et c=1399,3 pm, β=104,78°, Z=4. Affinement jusqu'a R=0,0405
结构 cristalline du tetrakis (trifluoromethyl) cyclopentadienure du tetramethyluronium。Le compose C 14 H 12 N 2 OF 12 cristallise dans le groupe P2 1 /c avec a=995,1, b=1320 et c=1399,3 pm, β=104,78°, Z=4。Affinement jusqu'a R=0,0405
The synthesis and structure of a stabilized nitrilium ylide
作者:Eugene P. Janulis、Scott R. Wilson、Anthony J. Arduengo
DOI:10.1016/s0040-4039(00)99896-4
日期:1984.1
The X-ray structure of the first stable nitrilium ylide is reported showing the central ylidic system to be essentially linear with only slight bends at the central carbon and nitrogen (4°); however MINDO/3 calculations on model compounds suggest the ylide functionality is quite flexible with low deformation energies.