A well-defined Pd hybrid material for the Z-selective semihydrogenation of alkynes characterized at the molecular level by DNP SENS.
Chemistry
; 19(37): 12234-8, 2013 Sep 09.
Article
em En
| MEDLINE
| ID: mdl-23959767
ABSTRACT
Direct evidence of the conformation of a Pd-N heterocyclic carbene (NHC) moiety imbedded in a hybrid material and of the Pd-NHC bond were obtained by dynamic nuclear polarization surface-enhanced NMR spectroscopy (DNP SENS) at natural abundance in short experimental times (hours). Overall, this silica-based hybrid material containing well-defined Pd-NHC sites in a uniform environment displays high activity and selectivity in the semihydrogenation of alkynes into Z-alkenes (see figure).
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01-internacional
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MEDLINE
Assunto principal:
Alcenos
/
Alcinos
/
Metano
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article