Bis,tris, etc

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Kavee Dodampahala 4E
Posts: 51
Joined: Sat Jul 20, 2019 12:17 am

Bis,tris, etc

Postby Kavee Dodampahala 4E » Tue Nov 26, 2019 9:22 pm

When do we use the prefixes bis, tris, tetrakis, pentakis, etc?

Benjamin Feng 1B
Posts: 102
Joined: Sat Sep 07, 2019 12:19 am

Re: Bis,tris, etc

Postby Benjamin Feng 1B » Tue Nov 26, 2019 9:27 pm

You use bis and tris when the ligand already has a bi or prefix in front of it. For example, you would say bisethylenediammine as en already has a "di" in it. You also use bis and tris when the ligand is polydentate like EDTA and oxalate.

Osvaldo SanchezF -1H
Posts: 122
Joined: Wed Sep 18, 2019 12:21 am

Re: Bis,tris, etc

Postby Osvaldo SanchezF -1H » Tue Nov 26, 2019 9:58 pm

The book on page 723 explains with detail when to use it but the simple matter of it, it that you use it when there is already prefix on the molecule name such as Di converts to Bi and etc, but I would take a glance at the reference number I gave you.

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Bis,tris, etc

Postby Natalie Benitez 1E » Wed Nov 27, 2019 1:20 am

When exactly do we use bis, cis, tris, etc.? How are they any different from using the other prefixes such as di, tri, etc.?

Ruth Glauber 1C
Posts: 100
Joined: Wed Sep 18, 2019 12:20 am

Re: Bis,tris, etc

Postby Ruth Glauber 1C » Wed Nov 27, 2019 6:49 am

I think you use it when the ligand already has a bi or prefix.

Angela Patel 2J
Posts: 110
Joined: Sat Aug 24, 2019 12:17 am

Re: Bis,tris, etc

Postby Angela Patel 2J » Wed Nov 27, 2019 9:11 am

Do you use them just when the name starts with bi or di or is it just when it has bi, di, etc anywhere in the name?

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Bis,tris, etc

Postby Arianna Perea 3H » Fri Nov 29, 2019 4:24 pm

how do you know when to use bis and not di?


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