Bi-Layer Complexes Incorporating Large Organic Cations and Anionic Tetra-p-Sulfonated Calix[4]arene Capsules

T. Ness, P.J. Nichols, Colin Raston

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

H(4)TMTAA(2+)/18-crown-6, H(4)TMTAA(2+)/2-hydroxybenzimidazole and cyclamH(4) (4+) self-assemble with sodium tetra-p-sulfonated calix[4]arene to form capsules within overall bilayer structures. [H(4)TMTAA (2+)](2)[trans-{Na(+)subset of (18-crown-6)(H2O)(2)}subset of [(p-O3S-calix[4]arene)(2)] + 3H(+)]. 17H(2)O crystallises in the triclinic space group P1 and contains the "Russian Doll" assembled superanion capsule, [Na(+)subset of (18-crown-6)(OH2) (2)}subset of{(p-O3S-calix[4]arene)(2))(7-). [H(4)TNlTAA(2+)](2)[(C7N2CH7+)(2)subset of [(p-O3S-calix[4]arene)(2)} + 2H(+)]. 17H(2)O also crystallises in the triclinic space group P1 and also contains a superanion capsule with two 2-hydroxybenzirnidazolium cations as the capsule core, [cyclamH(4)(4+)][{cyclamH(4) (4+)}subset of {(p-O3S-calix[4]arene)(2)}]. 18H(2)O crystallises in the space group P2(1)/n and is an example of a slipped capsule, with the slight "mismatch" allowing stronger internal capsule H-bonding. The cations influence the spacing between the bilayers and can span the calixarene layers.
Original languageEnglish
Pages (from-to)1993-1997
JournalEuropean Journal of Inorganic Chemistry
Volume1
Publication statusPublished - 2001

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