Metal exchange study of pyrogallol[4]arene based dimers. Issue 26 (25th May 2016)

• Record Type: Journal Article
• Authors: Kumari, Harshita; Mayhan, Collin M.; Barnes, Charles L.; Deakyne, Carol A.; Atwood, Jerry L.
• Is Part Of: CrystEngComm. Volume 18:Issue 26(2016)
• Page Start: 4909
• Page End: 4913
• Publication Date: 2016-05-25
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c6ce00639f
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : The synthesis, the single-crystal X-ray structure, and a metal-exchange study of a zinc-seamed C -hexylpyrogallol[4]arene/PgC6 Zn dimer are reported. Abstract : The synthesis, the single-crystal X-ray structure, and a metal-exchange study of a zinc-seamed C -hexylpyrogallol[4]arene/PgC6 Zn dimer are reported. The packing arrangement of the PgC6 Zn 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 PgC0 Zn and PgC3 Zn dimers.