Question

Part A Name the complex ion [Fe(CN)6]^3- . The oxidation number of iron is +3.

Part B Name the complex ion [Cu(NH3)2(H2O)4]^2+ . The oxidation number of copper is +2.

Part C Name the complex CrCl2(en)2 . The oxidation number of chromium is +2.

Part D Name the salt [Ni(H2O)3(Co)]SO4 . The oxidation number of nickel is +2.

Part E Name the salt K4[Pt(CO3)2F2] given that the carbonate ion acts as a monodentate ligand in the complex. The oxidation number of platinum is +2.

Answer 1

Name the coordination compounds by applying the following rules: 1. Cation of the complex compound comes first, followed by anion of the complex 2. The number of ligands of each type is represented by prefixes, and name of the . Write the name of the anionic ligands followed by an o-suffix, usual names of 4. Write the oxidation number of central metal atom as Roman numerical in 5. When a complex is negatively charged, the names for these metals are derived ligands can be written in alphabetical order. neutral ligands. parentheses after the name of the metal. from the sources of their symbols Part A In the complex ion [Fe(CN)6r , central atom Fe is surrounded by six cyanide ligands. Oxidation state of the Fe is +3 Name of the complex ion is hexacyanoferrate (III) Part B Central metal of the complex ion [Cu(NH,) (H20).Fis copper and its oxidation number is +2. Copper is surrounded by two ammine ligands(NH,) and two aqua ligands (H,0) Name of the complex ion is diamminetetraaquacopper(II) ion.

Part C: Central metal atom of the complex is chromium, its oxidation numbder is +2. Ligands of the complex are ethelenediammine and chlorine. Name of the complex is dichlorobis(ethylenediamine)chromium ( Part D: Cation of the salt is nickel complex ion and anion is sulfate(So In thecomplex ion, the central metal atom nickel is surronded by three aqua ligands and one carbonyl ligand. oxidation state of nickel is +2. Name of the salt is triaquacarbonylnickel(II)sulfate. Part E Central atom of the complex ion is platinum. The complex ion is a anion. Oxidation number of the platinum is +2. The central atom is surrounded by two anionic carbonate ligands and two fluorine ligands Therefore, the name of the salt is potassium dicarbonatodifluoroplatinate (II