| Synonym | Nickel, bis(eta<sup>5</sup>-cyclopentadienyl)-, Nickel, compd with p-cyclopentadienyl (1:2), Nickel, di-p-cyclopentadienyl-, Nickel, dicyclopentadienyl-, p-Cyclopentadienyl compd. with nickel, Nickel, compd. with pi-cyclopentadienyl, bis(?5-2,4-cyclopentadien-1-yl)nickel, Nickel, compd with pi-cyclopentadienyl (1:2), Nickel, bis(?5-cyclopentadienyl)-, Dicyclopentadienylnickel, Bis(cyclopentadienyl)nickel (II), Nickel, bis(?5-2,4-cyclopentadien-1-yl)-, Nikelocen, Nickel, bis(eta5-2,4-cyclopentadien-1-yl)-, bis(cyclopentadienyl)nickel(II), bis(eta<sup>5</sup>-Cyclopentadienyl) nickel, Di-p-cyclopentadienylnickel, NICKELOCENE, bis(?5-Cyclopentadienyl) nickel, Di-pi-cyclopentadienylnickel |
