Ganapathi, Emandi ; Chatterjee, Tamal ; Ravikanth, Mangalampalli (2015) Synthesis and specific fluoride binding properties of expanded dithiacalixphyrins Dalton Transactions, 44 (6). pp. 2763-2770. ISSN 1477-9226
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Official URL: http://pubs.rsc.org/en/content/articlelanding/2015...
Related URL: http://dx.doi.org/10.1039/C4DT03215B
Abstract
Expanded dithiacalixphyrins with the N2S2 core containing two sp3 and three sp2 meso-carbons have been prepared by condensation of one equivalent of butene-2,3-diyl-bisthiophene-2,5-diyl-bis(p-methoxyphenylmethanol) with one equivalent of 5,5′-dialkyldipyrromethane under mild acid catalyzed conditions in decent yields. The expanded dithiacalixphyrins were characterized by HR-MS, 1D and 2D NMR techniques and the structure of one of the expanded dithiacalixphyrin macrocycles was solved by X-ray crystallography. The crystal structure analysis indicated that the macrocycle is highly distorted and attains a boat shaped structure. The expanded thiacalixphyrins showed a specific sensing ability for F− ions over other anions as judged from absorption, NMR and mass spectral studies.
Item Type: | Article |
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Source: | Copyright of this article belongs to Royal Society of Chemistry. |
ID Code: | 104926 |
Deposited On: | 01 Dec 2017 10:55 |
Last Modified: | 01 Dec 2017 10:55 |
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