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Micro‐ and Nanometer‐Scale Porous, Fibrous, and Sheet Architectures Constructed by Supramolecular Assemblies of Dipyrrolyldiketones
Author(s) -
Maeda Hiromitsu,
Kusunose Yukio,
Terasaki Masahiro,
Ito Yoshihiro,
Fujimoto Chikoto,
Fujii Rika,
Nakanishi Takashi
Publication year - 2007
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200600379
Subject(s) - nanometre , porosity , materials science , nanotechnology , supramolecular chemistry , scale (ratio) , porous medium , composite material , chemistry , crystallography , crystal structure , physics , quantum mechanics
X‐ray analysis of some 1,3‐dipyrrolyl‐1,3‐propanediones synthesized from pyrroles and malonyl chloride derivatives revealed 1D supramolecular networks formed by NH⋅⋅⋅OC interactions in the solid state. Micro‐ and nanometer‐scale morphologies of porous, fibrous, and sheet structures were fabricated by hydrogen‐bonding interactions and determined by fine‐tuning the substituents and the solvents used. Of the unique polymorphs, ordered 2D lamellar sheet structures of the derivatives with long alkyl chains (C 16 H 33 , C 14 H 29 , and so on) were constructed by van der Waals hydrophobic effects between aliphatic chains as well as hydrogen bonding.