M. Struga, Barbara Mirosław, I. Wawrzycka-Gorczyca
Jun 5, 2007
Citations
0
Influential Citations
4
Citations
Journal
ChemInform
Abstract
Two new N-aminoimides, 2-amino-4,7-epoxy-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)dione (I) and 2-amino-8-isopropyl-5-methyl-4,7-ethane-3a,4,7,7a-tetrahydro-1H-isoindole-l,3(2H)-dione (II), have been synthesized. Both compounds are exo,cis isomers. Crystals of (I) and (II) are noncentrosymmetric with two crystallographically independent molecules (Z' = 2) in the asymmetric unit. The N-amine groups of the symmetry independent molecules differ in their environment, forming single or bifurcated N-H...O hydrogen bonds. Voluminous hydrocarbon parts evoke orthogonal electrostatic interactions between the imide ring and carbonyl or ether O atoms in (II) and (I), respectively, with C/N...O distances smaller than 3.2 A (the shortest being of 2.9 A).