Synonyms: Bis(1,2,3,4,5-pentamethylcyclopentadienyl)nickel;Bis(pentamenthylcyclopentadienyl)nickel(II);Bis(h5-pentamethylcyclopentadienyl)nickel;Decamethylnickelocene;nickel; 1,2,3,4,5-pentamethylcyclopenta-1,3-diene; 1,2,3,4,5-pentamethylcyclopentane;Nickelocene,decamethyl-;Bis(pentamethylcyclopentadienyl)nickel;