Influence of guests and protonation on the conformation of N,N'-dipyridyl-bis-aza-18-crown-6
Journal Publication ResearchOnline@JCUJunk, Peter C.;Smith, Matthew K.
Abstract
Crystallisation of the sodium perchlorate adduct of N,N′-dipyridyl-bis-aza-18-crown-6 from acidic aqueous conditions yielded [(H3O)(N,N′-dipyridyl-bis-aza-18-crown-6)][ClO4] and [Na·N,N′-dipyridyl-bis-aza-18-crown-6]2 [(H+)2N,N′-dipyridyl-bis-aza-18-crown-6][ClO4]4·2H2O. The conformations of crown ethers were significantly influenced by incorporation of an H3O+ or sodium ion, or protonation of the amino nitrogen atoms resulting in three different structures for the macrocycle.
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5
ISBN/ISSN
1387-7003
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Issue
12
Pages Count
4
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Elsevier
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DOI
10.1016/S1387-7003(02)00665-2