期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 17, 期 10, 页码 2594-2613出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ob02514b
关键词
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资金
- Danish Council for Independent Research, Technology and Production Sciences (FTP) [5054-00052]
- National Science Foundation [CHE-1807152]
- Robert A. Welch Foundation [F-0018]
- Villum Foundation
- Danish Natural Science Research Council (FNU) [11-106744]
The first tetrakis-tetrathiafulvalene-calix[4]pyrrole (TTF-C[4]P) was reported in 2004. Early on it and related p-extended TTF-C[4]Ps were found to function as both anion receptors and as hosts for planar electron deficient neutral guests, including nitroaromatic explosives. Anion binding was found to occur with a 1 : 1 binding stoichiometry and to stabilise the cone C[4]P conformation, whereas planar electron deficient guests were bound in a cooperative 1 : 2 fashion to the 1,3-alternate conformer. Addition of strongly complexing anions was found to trigger release of the electron deficient guests concurrent with a conformational change to the cone form. Subsequent studies led to the discovery of anion-induced complexation with C60, and the finding that the resulting complexes would support fast photoinduced electron transfer events. Synthetic advances then led to the preparation of nonsymmetric TTF-C[4]Ps where a single moiety organises the receptor in either the 1,3-alternate conformation or the partial cone conformation, thus modifying both selectivity and sensitivity. TTF-C[4]P-based stimulus responsive systems, that rely on anions and cations as controlling inputs, have also been developed and studied in recent years. This review provides a summary of TTF-C[4]P-related chemistry.
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