Morphologies of branched-chain pyrogallol[4]arenes in the solid state |
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| Authors: | Oleg V Kulikov Saeedeh Negin Nigam P Rath |
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| Institution: | 1. Center for Nanoscience, University of Missouri – St Louis, One University Boulevard, , St Louis, MO 63121, USA;2. Department of Chemistry &3. Biochemistry, University of Missouri – St Louis, One University Boulevard, St Louis, MO 63121, USA |
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| Abstract: | A suite of branched-chain pyrogallol4]arene (Pg) macrocycles, most of which show activity in bilayer membranes, has been prepared and studied by X-ray crystallography. The little-known branched side-chain Pgs include 2-propyl, 2-butyl, 2-pentyl, 3-pentyl, 3-heptyl, 4-heptyl, 5-nonyl and cyclohexyl. The Pgs form self-assembled structures having bilayer, capsule or, in one case, a nanotube morphology. The nanotube structure observed for C-(di-n-ethyl)pyrogallol4]arene was confirmed by X-ray structure analysis and by transmission and scanning electron microscopies. |
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| Keywords: | bilayer nanotube nanocapsule pyrogallolarene X-ray structure |
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