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Formation of bilayer structure through face-to-face π–π interactions

Authors
Journal
Journal of Molecular Structure
0022-2860
Publisher
Elsevier
Publication Date
Volume
920
Identifiers
DOI: 10.1016/j.molstruc.2008.10.023
Keywords
  • Crystal Engineering
  • Face-To-Face
  • π–π Interactions
  • Metal–Organic Framework
  • Piedfort Assembly
Disciplines
  • Mathematics

Abstract

Abstract Self-assembly of Cd(NO 3) 2·4H 2O and N, N′, N′′-tris(4-pyridinylmethyl)-1,3,5-benzene tricarboxamide (L) in DMF and further diffusion into ether furnished a new 2D coordination polymer, [CdL 2(NO 3) 2]. 2DMF ( 1) having noninterpenetrating honeycomb-like layer with (6,3) topology containing 54-membered rings and was characterized by elemental analyses, FT-IR, TGA and X-ray crystallography. These 2D sheets stack through face-to-face π–π interactions between central benzene rings and hydrogen bonding to form a bilayer structure. This type of perfect face-to-face π–π interactions (termed as Piedfort assemblies) are rare between benzene rings and its derivatives.

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