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dc.contributor.authorOgden, Mark
dc.contributor.authorRaston, C.
dc.contributor.authorRadomirovic, Tomoko
dc.contributor.authorJones, Franca
dc.identifier.citationOgden, Mark I. and Raston, Colin L. and Radomirovic, Tomoko and Jones, Franca. 2014. Impact of tunable oligophosphonates on barium sulfate crystallization. Crystal Growth & Design. 14 (3): pp. 1419-1429.

Calixarenes can be used as well-defined scaffolds for investigating structure–activity relationships of additives and their impact on crystallization. In this work, we present the crystal growth modification of barium sulfate by p-phosphonic acid calix[n]arenes that vary in size (n = 4, 5, 6, and 8) and thus vary in the size of the internal cavity for the same functionality in the upper rim. The tetrameric, hexameric, and octameric macrocycles induce nanoparticle formation with clear superstructure. In the case of the hexameric calix[6]arene, the initial mesocrystalline superstructure fuses over time to form almost hollow spheres, while the mesocrystals formed in the presence of the tetramer and octamer are stable over an extended period. The pentameric calix[5]arene forms more disordered aggregates of single crystals. Thermogravimetric data shows that a significant proportion of the mass of the barium sulfate-containing solid is the macrocycle, regardless of the choice of macrocycle.

dc.publisherAmerican Chemical Society
dc.titleImpact of tunable oligophosphonates on barium sulfate crystallization
dc.typeJournal Article
dcterms.source.titleCrystal Growth & Design

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Crystal Growth & Design, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see 10.1021/cg401897n,see

curtin.accessStatusOpen access

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