The biogenic tetraamines, spermine and norspermine, are efficiently encapsulated in the solid state by two molecules of carboxylcalix[5]arene, by means of a highly regioselective proton-transfer followed by bis-endo-cavity inclusion, providing overall-neutral complexes with a 70–72% packing coefficient, despite the modest affinity shown in solution.



Titolo: Encapsulation of biogenic polyamines by carboxylcalix[5]arenes: when solid-state design beats recognition in solution
Autori: 
BRANCATELLI, GIOVANNA
GEREMIA, SILVANO
mostra contributor esterni 
Data di pubblicazione: 2016
Rivista: 
CRYSTENGCOMM  
Abstract: The biogenic tetraamines, spermine and norspermine, are efficiently encapsulated in the solid state by two molecules of carboxylcalix[5]arene, by means of a highly regioselective proton-transfer followed by bis-endo-cavity inclusion, providing overall-neutral complexes with a 70–72% packing coefficient, despite the modest affinity shown in solution.
Handle: http://hdl.handle.net/11368/2889702
Digital Object Identifier (DOI): http://dx.doi.org/10.1039/C6CE00468G
URL: http://pubs.rsc.org/en/Content/ArticleLanding/2016/CE/C6CE00468G#!divAbstract
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