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Stabilization of a Reactive Cationic Species by Supramolecular Encapsulation
Author(s) -
Ziegler Marco,
Brumaghim Julia L.,
Raymond Kenneth N.
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20001117)39:22<4119::aid-anie4119>3.0.co;2-1
Subject(s) - supramolecular chemistry , cationic polymerization , aqueous solution , chemistry , denticity , encapsulation (networking) , cluster (spacecraft) , phosphonium , nuclear magnetic resonance spectroscopy , crystallography , molecule , stereochemistry , polymer chemistry , organic chemistry , crystal structure , computer science , computer network , programming language
When encapsulated as a guest in the cavity of the tetrahedral cluster Na 12 [Ga 4 L 6 ], the phosphonium cation [Me 2 C(OH)PEt 3 ] + ( 1 ), normally unstable in aqueous solution (see equilibrium (1)), can be observed in water. The host–guest complex Na 12 [Ga 4 L 6 ⊂ 1 ] has been observed by 1 H and 31 P{ 1 H} NMR spectroscopy as well as by mass spectrometry. This is a rare example of a self‐assembled supramolecular cluster stabilizing a reactive species by encapsulation. L=multidentate ligand.