Naming Coordination Compounds

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Jacob Afable 3J
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Naming Coordination Compounds

Postby Jacob Afable 3J » Wed Nov 11, 2015 11:04 am

How would we write the name for the following coordination compounds?

[Cr(NH3)3(OH2)3]3+

Na2[PtCl2(ox)2]

Chem_Mod
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Re: Naming Coordination Compounds

Postby Chem_Mod » Wed Nov 11, 2015 1:53 pm

triamminetriaquachromium(III), since ammine and aqua are neutral ligands the charge of the metal must be +3

sodium dichlorobis(oxalato)platinate(IV). Sodium is +1 which tells us the complex part needs to be -2. Then, chloro is -1 and oxalato is -2 so
4 + 2*(-1) + 2*(-2) = -2

Dahriel Aron 3A
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Re: Naming Coordination Compounds

Postby Dahriel Aron 3A » Wed Nov 11, 2015 9:21 pm

For this first one, I thought it would be chromium III not chromate III since it is a cation. Do you also add -ate to cations?

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Re: Naming Coordination Compounds

Postby Chem_Mod » Wed Nov 11, 2015 9:30 pm

Fixed: should be chromium not chromate, thanks


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