INVESTIGADORES
ULLA Maria Alicia Del H.
artículos
Título:
EXAFS characterization and selective olefin hydroformylation on Rh4, Rh2Co2 and RhCo3 carbonyl clusters attached with Tris Hydroxymethyl phosphine grafted Silica
Autor/es:
T. SHIDO; T. OKASAKI; M. A, ULLA; T.FUJIMOTO; M. ICHIKAWA
Revista:
CATALYSIS LETTERS
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 1993 vol. 17 p. 97 - 103
ISSN:
1011-372X
Resumen:
Rh4_xCOx(CO)12 (x = 0, 2, 3) are attached by carbonyl substitution to THP (tris-hydroxymethylphospine)- grafted silica keeping their cluster frameworks. They have been characterized by Rh K-edge EXAFS (extended X-ray absorption fine structure) and Fourier transform IR spectroscopy. They exhibited high catalytic activity with > 98% selectivity in gas phase hydroformylation of ethene and propene to give aldehydes under mild conditions (40 kPa and 300-373 K).
