Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

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Amy Kumar 1I
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Joined: Thu Jul 11, 2019 12:15 am

Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Amy Kumar 1I » Sun Nov 24, 2019 10:13 pm

When are bis-, tris-, tetrakis- used instead of di-, tri-, tetra-?

Bilal Pandit 1J
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Bilal Pandit 1J » Sun Nov 24, 2019 10:15 pm

They are used when the ligand has a prefix itself, so the ligand would have a di, tri, etc, so instead of saying didi, you would just say dis.

Kendall 3H
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Joined: Wed Sep 18, 2019 12:18 am

Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Kendall 3H » Sun Nov 24, 2019 10:16 pm

They are used if the ligand you are naming already has a name with di-, tri-, tetra-, tetra-

kpang_4H
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby kpang_4H » Sun Nov 24, 2019 10:24 pm

Bilal Pandit 3F wrote:They are used when the ligand has a prefix itself, so the ligand would have a di, tri, etc, so instead of saying didi, you would just say dis.

How do you know which is the ligand?

Lauren Sanchez 3D
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Lauren Sanchez 3D » Sun Nov 24, 2019 11:02 pm

kpang_4H wrote:
Bilal Pandit 3F wrote:They are used when the ligand has a prefix itself, so the ligand would have a di, tri, etc, so instead of saying didi, you would just say dis.

How do you know which is the ligand?

I believe that the ligands are the atoms that surround the transition metal.

Aadil Rehan 1D
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Aadil Rehan 1D » Sun Nov 24, 2019 11:28 pm

Ligands are the ones within the coordination sphere of the central atom.

Megan_1F
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Megan_1F » Mon Nov 25, 2019 11:49 am

What is the order of naming coordination compounds?

Robin Cadd 1D
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Robin Cadd 1D » Mon Nov 25, 2019 11:59 am

Megan_1F wrote:What is the order of naming coordination compounds?

1) ligands first, then metal ion or atom
2) ligands are named in alphabetical order, disregarding their prefixes

anjali41
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Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby anjali41 » Mon Nov 25, 2019 12:02 pm

The prefixes bis-, tris-, and tetrakis- are used when a ligand already has a Greek prefix or the ligand is polydentate.

britthanul234
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Joined: Wed Sep 18, 2019 12:21 am

Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby britthanul234 » Mon Nov 25, 2019 12:23 pm

The prefixes bis-, tris-, and tetrakis- are used when a ligand already has a Greek prefix. It's either that or you use it when the ligand is polydentate.

Tiffany_Chen 2K
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Joined: Fri Aug 30, 2019 12:15 am

Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Tiffany_Chen 2K » Mon Nov 25, 2019 12:55 pm

You would also use the prefix if the ligand is polydentate, and there are more than one of the ligands (so no di-dien).

Kelsey Ash 1D
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Joined: Wed Sep 18, 2019 12:16 am

Re: Di-, Tri-, Tetra- vs Bis-, Tris-, Tetrakis-

Postby Kelsey Ash 1D » Mon Nov 25, 2019 1:23 pm

You would use them if the ligand already had a prefix of di-, tr-, etc.


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