Organometallic enolates generally are littleknown, and no organosilicon derivatives of &diketones are described in the literature. 2 This paper reports the synthesis of a series of organosilicon acetylacetonates and a study of their structure by means of infrared spectroscopy in the sodium chloride region. The unsubstituted silicon derivative of acetylacetone (HA)'was first prepared in 1903 by Dilthey7t8 who found the product result-
