Complex Ion Chemistry: NH3 + Copper 2

[scott_alexsk]

Hello,

I have been searching for sites recently on complex ion chemistry and I have found a few good hits, but sometimes it seems the authors are vague as to the actual complex formed, and which complex actually causes the color change. For example for NH3 mixed with Copper 2, one source says that Cu (NH3)4 is formed while another throws on 2 H20s. Which is correct?

-scott

 

[chemisttree]

I believe that the structure with the two water molecules is correct, assuming that the complex was formed in an aqueous environment.

 

[scott_alexsk]

Thanks, for that, but do you know any good online sources. I have already found a few good sites, but I would like to familiarize myself with as much information as possible.

-scott

 

[gradeaswimr]

http://www.chemguide.co.uk/inorganic/complexions/colour.html#top