Homework #17.31

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Tasnia Haider 1E
Posts: 55
Joined: Sat Jul 22, 2017 3:01 am

Homework #17.31

Postby Tasnia Haider 1E » Mon Nov 20, 2017 6:37 pm

When figuring out the elements of a compound, does it matter in which way compounds are ordered in the coordination compound?
For example in 17.31b, the compound is pentaamine sulfatocobalt(III) chloride, and the sulfate is mentioned second but is connected to the cobalt in the answer,
[Co(SO4)(NH3)5] Cl.
However in 17.31c, the name of the compound is tetraamminediaaquacobalt(III)bromide, and H2O is mentioned second, but is not the one connected to Cobalt as shown in the answer key: [Co(NH3)4(H2O)2] Br.

Does it matter how many hydrogens there are, or is there another reason why the compounds/elements are ordered in this way?

Julie Steklof 1A
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: Homework #17.31

Postby Julie Steklof 1A » Mon Nov 20, 2017 6:54 pm

When naming coordination complexes, the ligands are listed alphabetically. I don't think the order when writing the chemical formula is significant because everything within the square brackets is directly bonded to the transition metal.

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