ISSN:
1572-8854
Keywords:
Diphenylaziridine
;
low temperature
;
symmetrical molecule
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract 1-Vinyl-cis-2,3-diphenylaziridine, C16H15N, has been synthesized and characterized by spectroscopic methods and single crystal X-ray analysis. The structure was studied at room temperature (2a) (18°C) and at low temperature (2b) (−70°C). The title compound crystallizes in the space group Cm with Z=2 showing no phase transformation between the two temperatures. The cell parameters area=8.258(3),b=15.880(3),c=5.827(2)Å, β=122.32(2)° for (2a) anda=8.188(2),b=15.762(3),c=5.724(1)Å, β=121.57(2)° for (2b). Both the studies show nearly the same conformation. With the exception of the vinyl group, the molecule hasm symmetry, so, the asymmetric unit is half a molecule. The mirror plane of the space group cuts the aziridine ring through the N atom. The vinyl group is distributed on two symmetrical positions by means of the same mirror plane. In this way, the crystal is built with the two diastereoisomers of the title compound.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01670335
Permalink