Synonyms: 1,3-Cyclopentadiene,1,2,3,4,5-pentamethyl-, rhodium complex;Bis(chloro(m-chloro)(h5-pentamethylcyclopentadienyl)rhodium);Bis(pentamethylcyclopentadienylrhodium dichloride);Bis(m-chloro)bis(chloro(h5-pentamethylcyclopentadienyl)rhodium);Di-m-Chlorodichlorobis(pentamethyl-p-cyclopentadienyl)dirhodium;Di-m-chlorobis[chloro(h5-pentamethylcyclopentadienyl)rhodium];Di-m-chlorodichlorobis((h5-pentamethylcyclopentadienyl)rhodium);Dichloro(pentamethylcyclopentadienyl)rhodium(II) dimer;Tetrachlorobis(pentamethylcyclopentadienyl)dirhodium;Tetrachlorobis(h5-pentamethylcyclopentadienyl)dirhodium;