why chloro instead of monochloro

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Haocheng Zhang 2A
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am

why chloro instead of monochloro

Postby Haocheng Zhang 2A » Mon Nov 27, 2017 10:00 pm

The name of [Pt(NH3)5Cl]Br3 is pentaamminechloroplatinum(IV) bromide. I wonder why we write chloro instead of monochloro.

Naveed Zaman 1C
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Re: why chloro instead of monochloro

Postby Naveed Zaman 1C » Mon Nov 27, 2017 10:07 pm

The "-monochloro" is just redundant. This is because whenever we don't add prefixes to a ligand it is assumed that there is only a single one present in the compound. Prefixes are only reserved for showing we have more than 1 of a ligand present in the compound (i.e. di-, tri-, tetra-, etc.).

Haocheng Zhang 2A
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am

Re: why chloro instead of monochloro

Postby Haocheng Zhang 2A » Mon Nov 27, 2017 10:41 pm

Also, how to identify a polydentate ligand?

Alex Nechaev 1I
Posts: 50
Joined: Fri Sep 29, 2017 7:04 am

Re: why chloro instead of monochloro

Postby Alex Nechaev 1I » Tue Nov 28, 2017 1:58 pm

Haocheng Zhang 1C wrote:Also, how to identify a polydentate ligand?
A polydentate ligand can be recognized by having more than 2 lewis base sites, such as multiple lone pair donating sites used to bond to a central atom or ion.


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