Wiley-2014Angew Chem Int Ed-基于供体和受体生色团的超分子自组装Supramolecular Assemblies by.pdfVIP

. Angewandte S. Ghosh and A. Das Minireviews DOI: 10.1002/anie.201307756 Noncovalent Interactions Supramolecular Assemblies by Charge-Transfer Interactions between Donor and Acceptor Chromophores Anindita Das and Suhrit Ghosh* amphiphiles · charge transfer · gels · liquid crystals · supramolecular chemistry We have collated various supramolecular designs that utilize organic donor–acceptor CT complexation to generate noncovalently co- assembled structures including fibrillar gels, micelles, vesicles, nano- tubes, foldamers, conformationally restricted macromolecules, and liquid crystalline phases. Possibly inspired by nature, chemists have extensively used hydrogen bonding as a tool for supramolecular assemblies of a diverse range of abiotic building blocks. As a structural motif, CT complexes can be compared to hydrogen-bonded complexes in its directional nature and complementarities. Additional advantages of CT interactions include wider solvent tolerance and easy spectro- scopic probing. Nevertheless the major limitation is their low associ- ation constant. This article shows different strategies have evolved over the years to overcome this drawback by reinforcing the CT interactions with auxiliary noncovalent forces without hampering the alternate als,[19, 20] fibrillar gels,[21] and the rele- stacking mode. Emerging reports on promising CT complexes in vance of supramolecular chemistry in