All Questions
Tagged with orbitals transition-metals
19
questions
9
votes
2
answers
5k
views
Why do copper (II) complexes contain so many valence electrons?
Consider tetraaminecopper (II) ion. $\ce{[Cu(NH3)4]^2+}$ or $\ce{[Cu(NH3)4(H2O)2]^2+}$.
The copper(II) ion has the electron configuration $\mathrm{[Ar]\ 3d^9}$. How do the 4 electron pairs from the ...
- 191
3
votes
1
answer
8k
views
Spectrochemical Series - Sigma Donor Capability
I fully understand and recognise the manner and which the series works.
I cannot find any references for the change in sigma donor capability moving up the series.
For example, comparing $\ce{Cl-}$ ...
- 729
16
votes
1
answer
7k
views
Splitting of $d$ orbitals when ligands approach central metal ion
In my high school chemistry book, it is written that when ligands approach the central metal ion (transition metal ion) to form dative bonds, the $3d$ orbitals split into two: two which are in higher ...
- 2,423
72
votes
4
answers
34k
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Why do elements in columns 6 and 11 assume 'abnormal' electron configurations?
When I look around for why copper and chromium only have one electron in their outermost s orbital and 5/10 in their outermost d orbital, I'm bombarded with the fact that they are more stable with a ...
- 1,827