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List five d8 system
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d8 systems in chemistry refer to transition metal complexes with 8 electrons in their d orbitals. Here are five examples:
1. [Ni(CN)4]2- (tetracyanonickelate(II) ion): This square planar complex has a nickel(II) ion with a d8 configuration, leading to strong ligand field splitting and diamagnetism.
2. [PtCl4]2- (tetrachloroplatinate(II) ion): Similar to the nickel complex, this square planar platinum complex is also diamagnetic with a d8 configuration.
3. [Pd(NH3)4]2+ (tetraamminepalladium(II) ion): This complex is square planar with palladium(II) having a d8 configuration, making it diamagnetic.
4. [RhCl(CO)(PPh3)2] (Wilkinson's catalyst): This square planar complex is a popular catalyst with a rhodium(I) ion having a d8 configuration.
5. [IrCl2(CO)(PPh3)2] (Vaska's complex): Similar to Wilkinson's catalyst, this square planar complex is also a catalyst with an iridium(I) ion having a d8 configuration.
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