Synonyms: Rhodium,[(1,2,3,4-h)-hexamethylbenzene][(1,2,3,4,5-h)-1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl]-(9CI); 1,3-Cyclopentadiene, 1,2,3,4,5-pentamethyl-, rhodium complex; Benzene,hexamethyl-, rhodium complex; (1,2,3,4-h-Hexamethylbenzene)(h5-pentamethylcyclopentadienyl)rhodium; (h4-Hexamethylbenzene)(h5-pentamethylcyclopentadienyl)rhodium