Isolation of Organometallic Catalysts

Many organometallic catalysts are soluble in ionic liquids, especially including ionic compounds. Neutral species, such as Wilkinson s catalyst, are also soluble to some extent in ionic liquids (169). There are numerous examples illustrating the dispersion and isolation of organometallic catalysts in ionic liquids a list of examples is given in a recent review (/). 

Often in the literature, the term catalyst immobilization has been used to describe the dispersion and retention of a catalyst in an ionic liquid, although it is generally understood that the catalyst in the ionic liquid is not truly immobilized as it is on a solid support surface the term catalyst immobilization is avoided in this context here. 

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