Metal exchange study of pyrogallol[4]arene based dimers
| Autor: | Collin M. Mayhan, Charles L. Barnes, Jerry L. Atwood, Harshita Kumari, Carol A. Deakyne |
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| Rok vydání: | 2016 |
| Předmět: |
Quantum chemical
010405 organic chemistry Chemistry Stereochemistry Dimer chemistry.chemical_element General Chemistry 010402 general chemistry Condensed Matter Physics 01 natural sciences Nanocapsules Pyridine ligand 0104 chemical sciences Metal chemistry.chemical_compound Nickel Crystallography Pyrogallol visual_art visual_art.visual_art_medium Zinc metal General Materials Science |
| Zdroj: | CrystEngComm. 18:4909-4913 |
| ISSN: | 1466-8033 |
| Popis: | The synthesis, the single-crystal X-ray structure, and a metal-exchange study of a zinc-seamed C-hexylpyrogallol[4]arene/PgC6Zn dimer are reported. The packing arrangement of the PgC6Zn dimer shows interdigitation between the C-hexyl tails. Neighboring dimeric nanocapsules are slightly offset with respect to each other, with CH⋯π interactions between the hexyl tails and the external pyridine ligands. In situ metal exchange with nickel nitrate does not result in expulsion of zinc metal centers from a pre-formed dimer, a result suggesting a framework robustness that may make formation of (magnetically interesting) mixed-metal dimers difficult. The suggested robustness of zinc-seamed pyrogallol[4]arene-based dimers is supported by quantum chemical calculations on related PgC0Zn and PgC3Zn dimers. |
| Databáze: | OpenAIRE |
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