Solid-state self-assembly of a calix[4]pyrrole-resorcinarene hybrid into a hexameric cage

Journal of the American Chemical Society

Volumn 129, Issue 13, 2007, Pages 3820-3821

  Gil Ramírez, Guzmán ^b   Benet Buchholz, Jordi ^b   Escudero Adán, Eduardo C ^b   Ballester, Pablo ^a,b  

^a INSTITUCIÓ CATALANA DE RECERCA I ESTUDIS AVANÇATS ICREA   (Spain)

^b INSTITUTE OF CHEMICAL RESEARCH OF CATALONIA ICIQ   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

POLYCYCLIC AROMATIC HYDROCARBON DERIVATIVE; PYRROLE DERIVATIVE; RESORCINOL DERIVATIVE;

ARTICLE; CHEMICAL ANALYSIS; CHEMICAL MODIFICATION; CHEMICAL STRUCTURE; SOLID STATE; STRUCTURE ANALYSIS;

EID: 34247141481     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja070037k     Document Type: Article

References (23)

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19. The complexation of anions in the interior of the aromatic cavity of α,α,α,α isomers of calix[4]pyrroles occurs with slow kinetics relative to the NMR time scale and produces a downfield shift of more than 3 ppm to the pyrrolic NH's of the complex. Furthermore, the protons of the fixed aromatic walls are consistently upfield shifted (refs 3a, 4a and P. Ballester et al., unpublished results). Reference 3a also describes the solid-state structure of the exo cavity adduct formed between an α,α,α,α isomer of a hydroxyl derivative of calix[4]pyrrole and fluoride.
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23. We have reproduced three times the crystallization protocol, and in all cases crystals of the same type were obtained.