In [PtCl₆]²⁻, Pt has a coordination number of 6, and in [Ni(NH₃)₄]²⁺, Ni has a coordination number of 4. Similarly, [Fe(C₂O₄)₃]₃³⁻ and [Co(en)₃]³⁺ both have a coordination number of 6.
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In [PtCl₆]²⁻, Pt has a coordination number of 6, and in [Ni(NH₃)₄]²⁺, Ni has a coordination number of 4. Similarly, [Fe(C₂O₄)₃]₃³⁻ and [Co(en)₃]³⁺ both have a coordination number of 6.
Examples of coordination numbers in complex ions include:
[PtCl₆]²⁻ (Platinum hexachloride): Coordination number = 6, adopting an octahedral geometry.
[Ni(H₂O)₆]²⁺ (Nickel hexaaquonickel(II)): Coordination number = 6, forming an octahedral complex.
[Fe(CO)₆] (Iron hexacarbonyl): Coordination number = 6, exhibiting an octahedral arrangement.
[Cu(NH₃)₄]²⁺ (Copper tetraammine complex): Coordination number = 4, displaying a square planar geometry.
These examples illustrate the diverse coordination numbers encountered in coordination complexes, influencing their structures and properties.