In a typical reaction involving iron(III) ions (Fe³⁺) and thiocyanate ions (SCN⁻), the formation of the complex ion FeSCN²⁺ occurs. The reaction can be represented as:
\[ \text{Fe}^{3+} + \text{SCN}^- \rightleftharpoons \text{FeSCN}^{2+} \]
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