Give The I.U.P.A.C Name of the complex Salt K3[Fe(CN)6-]. Calculate the Effective Atomic No. (EAN) of Fe in this complex Salt.
IUPAC name of K3[Fe(CN)6] is potassium hexacyanoferrate(III).
The effective atomic number (EAN) of Fe is calculated as follows:
The oxidation state of Fe in the complex = 3+
Number of electrons in Fe3+ ion = 23
Number of electrons gained by coordination with 6 (CN-)ligands = 2 x 6 = 12 ( since one CN- ion gives 2 electrons)
Total number of electrons in Fe3+ ion after coordination = 23 + 12 = 35
Therefore, EAN of Fe in the complex is 35.
The effective atomic number (EAN) of Fe is calculated as follows:
The oxidation state of Fe in the complex = 3+
Number of electrons in Fe3+ ion = 23
Number of electrons gained by coordination with 6 (CN-)ligands = 2 x 6 = 12 ( since one CN- ion gives 2 electrons)
Total number of electrons in Fe3+ ion after coordination = 23 + 12 = 35
Therefore, EAN of Fe in the complex is 35.