Task: Please generate a molecule SMILES based on the description below.
Description: The molecule is a nickel cation in which the nickel carries a double positive charge. It has a role as a cofactor. It is a divalent metal cation, a metal cation allergen, a nickel cation and a monoatomic dication.
Result: [Ni+2]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[Ni+2]
nickel(2+)
The molecule is a nickel cation in which the nickel carries a double positive charge. It has a role as a cofactor. It is a divalent metal cation, a metal cation allergen, a nickel cation and a monoatomic dication.