The Synthesis of Tris(Pentamethylcyclopenta-dienyl)Gallium(III).
STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY
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The previously unknown and elusive compound, GaC5Me53, has been prepared by several synthetic routes and has been characterized by elemental analyses, IR and 1H NMR data. The compound has been prepared from GaCl3 and excess NaC5Me5 in THF solution. A second general route to GaC5Me53, the reaction of GaC5Me5nCl3-n n1,2 with sodium naphthalenide in THF solution, has also been realized. Heating of the product mixture at 50-60 C under vacuum leads to the complete removal of the reaction solvent, THF, an observation which suggests that GaC5Me53 is a very weak Lewis acid. The title compound exists as a pentane and ether soluble colorless crystalline solid with a melting point of 168-170 C.
- Organic Chemistry