What does (en) mean in a chemical formula/ligands

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The discussion clarifies that (en) in the chemical formula [Pt(en)3](ClO4)4 refers to ethylenediamine, which is a bidentate ligand. The coordination number of the complex is determined by the three ethylenediamine ligands coordinating with the platinum ion. Additionally, perchlorate (ClO4) acts as a non-coordinating anion to balance the charge of the platinum complex.

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Homework Statement


What is the coordination number of [Pt(en)3](ClO4)4

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The Attempt at a Solution



I know the method to solve this one, I just have no idea what (en) is and if it is bidentate or polydentate (I've already tried monodentate and it was incorrect). Even the name of (en) would be fantastic!
Thanks :)
 
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Most likely ethylenediamine.
 
Thanks so much :)
 
Yep. en = ethylenediamine. bidentate. Perchlorate is one of the non-coordinating anions. It is just there to balance the charge on the platinum.
 
Thank you :)
 

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