| 3 Carbon-Sandwich Structures | MOLECULE | GEOMETRY | MOLECULAR ORBITALS | VIBRATIONS | BOND ORDER |
| Bis(allyl)Ni | |||||
| [Allyl_Ni]+ |
|||||
| ALLYL ANION | |||||
| CYCLOPROPENYL CATION | |||||
| Bis(allyl)Ni2Cl2 | Bis(allyl)Ni2Cl2 | ||||
| [Ni2Cl2]2+ | |||||
| [Bis(allyl)]2- | |||||
| [(allyl)NiCl2]-1 | [(allyl)NiCl2]-1 | ||||
| [NiCl2] | |||||
| [(allyl)]-1 | [(allyl)]-1 |