Self-assembly of pyrrole-2-carboxylates: Substituent effect on the synthon conversion
摘要:
The substituent effect on the solid state self-assemblies of three pyrrole-2-carboxylate compounds, 2-4, with N-H O hydrogen bonds have been studied by X-ray crystallography. Although just one group different in structure, the self-assemblies of 2-4 varied greatly The phenyl Substituted compound 2 assembled into corrugated tape structure through a R-2(2)(10) type dinner synthon and the benzyl substituted compound 3 assembled into 2-D layer structure through a C(5) type catemer synthon. whereas the butyl Substituted compound 4 assembled into 2-D layer through both type synthons. (C) 2009 Elsevier B.V. All rights reserved