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Journal of the Chilean Chemical Society

versão On-line ISSN 0717-9707

Resumo

JARA, PAUL; BARRIENTOS, LORENA; HERRERA, BARBARA  e  SOBRADOS, ISABEL. INCLUSION COMPOUNDS OF α-CYCLODEXTRIN WITH ALKYLTHIOLS. J. Chil. Chem. Soc. [online]. 2008, vol.53, n.2, pp.1474-1476. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072008000200005.

We report the formation of á-cyclodextrin (áCD) inclusion compounds with octanethiol (OT), decanethiol (DT) and dodecanethiol (DDT). Elemental Microanalysis, 1H-NMR solution, Scanning Electronic Microscopy (SEM) and Powder X-ray Diffraction analysis (PXRD) confirm the inclusion process of the alkylthiols in to the á-cyclodextrin molecules. The basic host structure of the products is similar to that of typical channel type structure cyclodextrin inclusion compounds. The guest presents extended linear (zig-zag) conformation. The presence of the -SH groups located in the (001) plane of the á-cyclodextrins-alkylthiol crystal, is evidenced by Energy dispersive X-ray (EDX) analysis. 13C CP-MAS NMR spectra of new á-cyclodextrin host-guest inclusion compounds are described.

Palavras-chave : Inclusion compound; Cyclodextrin; Thiol.

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