Question:
Write the IUPAC names of the following coordination compound: \(K_2[Ni(CN)_4]\)
Write the IUPAC names of the following coordination compound: \(K_2[Ni(CN)_4]\)
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When naming coordination complexes, remember to include the oxidation state of the central metal and the number of ligands.
Updated On: Nov 29, 2025
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Solution and Explanation
Step 1: Identify the ligands. The ligand in this compound is cyanide \((CN^-)\), which is a monodentate ligand.
Step 2: Identify the oxidation state of the metal. Nickel (Ni) in this compound is in the +2 oxidation state, because the four cyanide ions \((CN^-)\) each carry a -1 charge, and the overall charge of the complex is 0. Thus, the charge on Ni must be +2.
Step 3: Write the IUPAC name. The IUPAC name is: Tetrachloronickel(II).
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