In:
Angewandte Chemie, Wiley, Vol. 127, No. 30 ( 2015-07-20), p. 8782-8785
Abstract:
Caged supramolecular systems are promising hosts for guest inclusion, separation, and stabilization. Well‐studied examples are mainly metal‐coordination‐based or covalent architectures. An anion‐coordination‐based cage that is capable of encapsulating halocarbon guests is reported for the first time. This A 4 L 4 ‐type (A=anion) tetrahedral cage, [(PO 4 ) 4 L 4 ] 12− , assembled from a C 3 ‐symmetric tris(bisurea) ligand ( L ) and phosphate ion (PO 4 3− ), readily accommodates a series of quasi‐tetrahedral halocarbons, such as the Freon components CFCl 3 , CF 2 Cl 2 , CHFCl 2 , and C(CH 3 )F 3 , and chlorocarbons CH 2 Cl 2 , CHCl 3 , CCl 4 , C(CH 3 )Cl 3 , C(CH 3 ) 2 Cl 2 , and C(CH 3 ) 3 Cl. The guest encapsulation in the solid state is confirmed by crystal structures, while the host–guest interactions in solution were demonstrated by NMR techniques.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v127.30
DOI:
10.1002/ange.201502399
Language:
German
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
506609-8
detail.hit.zdb_id:
1479266-7
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