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Surface‐bound organometallic rhodium precursors for 1‐hexene hydrogenation
Author(s) -
Herrero Juana,
Blanco Carmen,
Esteruelas Miguel A.,
Oro Luis A.
Publication year - 1990
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590040210
Subject(s) - rhodium , chemistry , catalysis , 1 hexene , dehydration , montmorillonite , hexene , organometallic chemistry , cationic polymerization , inorganic chemistry , hydrogen , x ray photoelectron spectroscopy , polymer chemistry , organic chemistry , chemical engineering , ethylene , engineering , biochemistry
Abstract Rhodium precursor catalysts supported on palygorskite, montmorillonite and silica were obtained from an organometallic cationic rhodium species and evacuated supports at different temperatures. Based on the different times which precursors took to be active in 1‐hexene hydrogenation, in the liquid phase at atmospheric hydrogen pressure, it has been deduced that the supported rhodium species varies with the support and its dehydration temperature. Activity in this reaction also depended on the support, its dehydration temperature and storage in air. Precursors and catalysts were characterized by X‐ray photoelectron and infrared spectroscopy. Very stable complexes are obtained under humid ambient conditions. With montmorillonite support, activity decreases if rhodium/1‐hexene ratio decreases.