N. Sharma, Rakesh D. Sharma, Sanjay Kumar
Aug 5, 2021
Citations
0
Influential Citations
0
Citations
Journal
ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2020): 5th National e-Conference on Advanced Materials and Radiation Physics
Abstract
X-ray crystallographic behaviours have been compared for the three polyfunctionalized 4H-pyran derivatives, 2-Amino-7,7-dimethyl-5-oxo-4-[3-(trifluoromethyl)phenyl]-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile [Compound-I], 2-Amino-4-(4-chlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile [Compound-II] and 2-Amino-4-(2-chlorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4Hchromene-3-carbonitrile hemihydrate [Compound-III], respectively. All the three compounds were crystallizes in the monoclinic crystal system having space group C2/c. Crystal packing of all the three compounds is stabilized by strong intermolecular N-H…N and N-H…O interactions. The crystal structures of all the three compounds were solved by direct method using single crystal X-ray diffraction data collected at room temperature and refined by full-matrix least-squares procedures. The X-ray crystallographic properties of these synthesized compounds are compared herein.