Synonyms: Rhodium,dicarbonyl(pentamethyl-p-cyclopentadienyl)- (8CI); 1,3-Cyclopentadiene, 1,2,3,4,5-pentamethyl-,rhodium complex; (Pentamethylcyclopentadienyl)rhodium dicarbonyl;Dicarbonyl(pentamethylcyclopentadienyl)rhodium; Dicarbonyl(h5-pentamethylcyclopentadienyl)rhodium;Pentamethylcyclopentadienerhodium dicarbonyl