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| Título: |
Spectroscopic and thermal characterization of the host-guest interactions between -, - and -cyclodextrins and vanadocene dichloride / Alexis Morales, Ralph T. Weber, Enrique Melendez
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| Autores: |
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| En: |
Applied Organometallic Chemistry, vol 22, issue 8: Aug 2008, p 440-450. bibl.
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| Revista: |
Revistas extranjeras
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| Resumen: |
Host-guest interactions between -, - and -cyclodextrins and vanadocene dichloride (Cp2VCl2) have been investigated by a combination of thermogravimetric analysis, differential scanning calorimetry, powder X-ray diffraction and solid-state and solution electron paramagnetic resonance (EPR) spectroscopy. The solid-state results demonstrated that only - and -cyclodextrins form 1:1 inclusion complexes, while -cyclodextrin does not form an inclusion complex with Cp2VCl2. The - and -CD-Cp2VCl2 inclusion complexes exhibited anisotropic electron-51V (I = 7/2) hyperfine coupling constants whereas the -CD-Cp2VCl2 system showed only an asymmetric peak with no anisotropic hyperfine constant. On the other hand, solution EPR spectroscopy showed that -cyclodextrin (-CD) may be involved in weak host-guest interactions in equilibrium with free vanadocene species. Copyright © 2008 John Wiley & Sons, Ltd.
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| Palabras Claves: |
Palabras claves: cyclodextrin vanadocene dichloride EPR inclusion complex
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| Areas Temáticas: |
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LDR 01692nab a2200193 a 4500
001 11176467
003 2009-10-13 22:36:28.0
005 2009-10-13 22:36:28.0
008 090304t2008 sp u 0 0 0eng d
030 $aTérmino clasificatorio
040 $aCI
082 00$aTérmino clasificatorio
245 00$aSpectroscopic and thermal characterization of the host-guest interactions between -, - and -cyclodextrins and vanadocene dichloride /$cAlexis Morales, Ralph T. Weber, Enrique Melendez
260 $aApplied Organometallic Chemistry,$cvol 22, issue 8: Aug 2008, p 440-450. bibl.
440 0$aRevistas extranjeras
504 $aPalabras claves: cyclodextrin <U+2022> vanadocene dichloride <U+2022> EPR <U+2022> inclusion complex
520 0 $aHost-guest interactions between -, - and -cyclodextrins and vanadocene dichloride (Cp2VCl2) have been investigated by a combination of thermogravimetric analysis, differential scanning calorimetry, powder X-ray diffraction and solid-state and solution electron paramagnetic resonance (EPR) spectroscopy. The solid-state results demonstrated that only - and -cyclodextrins form 1:1 inclusion complexes, while -cyclodextrin does not form an inclusion complex with Cp2VCl2. The - and -CD-Cp2VCl2 inclusion complexes exhibited anisotropic electron-51V (I = 7/2) hyperfine coupling constants whereas the -CD-Cp2VCl2 system showed only an asymmetric peak with no anisotropic hyperfine constant. On the other hand, solution EPR spectroscopy showed that -cyclodextrin (-CD) may be involved in weak host-guest interactions in equilibrium with free vanadocene species. Copyright © 2008 John Wiley & Sons, Ltd.
700 10$aMorales, Alexis
700 10$aWeber, Ralph T.
700 10$aMeléndez, Enrique
949 $bytrc
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