Hybridisation of Chromate Ion Explained

  • Thread starter Thread starter Karan Punjabi
  • Start date Start date
  • Tags Tags
    Hybridisation Ion
AI Thread Summary
The discussion centers on the hybridization of the chromate ion, with participants expressing confusion about its structure. It is suggested that the chromate ion is better described using d3s hybridization rather than sp3, as the p orbitals in the highly charged chromium VI ion are at a higher energy level than the d orbitals. This hybridization leads to a tetrahedral shape when considering the unequal directions along the diagonals of a cube. The role of the inner 3s orbital is clarified, noting that it is too low in energy and fully filled to participate in bonding. Additionally, the chromate ion is confirmed to be a complex ion.
Karan Punjabi
Messages
127
Reaction score
3
Can some one explain the structure of chromate ion on the basis of hybridisation cause I'm a bit confused I googled about it and there are posts like explaining it as sp3 hybridised ion. Explain please.
 
Chemistry news on Phys.org
Karan Punjabi said:
Can some one explain the structure of chromate ion on the basis of hybridisation cause I'm a bit confused I googled about it and there are posts like explaining it as sp3 hybridised ion. Explain please.
Guys please help me.
 
If you really want to describe transition metal compounds in terms of hybrids, I would rather go for ##d^3s## than ##sp^3##, as the p orbitals in a highly charged ion like chromium VI are energetically much higher than the d orbitals. The d3s hybrids are directed along the diagonals of a cube. If you allow for a small substitution of d for p, the two directions along the diagonal become unequal and you will get a more tetrahedral shape.
 
DrDu said:
If you really want to describe transition metal compounds in terms of hybrids, I would rather go for ##d^3s## than ##sp^3##, as the p orbitals in a highly charged ion like chromium VI are energetically much higher than the d orbitals. The d3s hybrids are directed along the diagonals of a cube. If you allow for a small substitution of d for p, the two directions along the diagonal become unequal and you will get a more tetrahedral shape.
The inner s orbital ie 3s would be affected by hybridisation or not? And how we are considering hybridisation between 2 orbitals of different shells?
 
The inner 3s orbital is way too low in energy and completely filled. Hence it won't participate in bonding. There is no prinicpal difficulty with hybridizing orbitals of different sub-shells as long as they are of comparable energy and size.
 
DrDu said:
The inner 3s orbital is way too low in energy and completely filled. Hence it won't participate in bonding. There is no prinicpal difficulty with hybridizing orbitals of different sub-shells as long as they are of comparable energy and size.
Got it. One more thing chromate ion is a complex right?
 

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Similar threads

Are Electrons Transferring Energy in Hybridisation Orbitals?
Replies
13
Views
2K
Most Accepted Theory For Covalent Bonding
Replies
9
Views
3K
Questions about the common-ion effect
Replies
4
Views
2K
Sulphur Dioxide (SO2) Geometry & Hybridization
Replies
20
Views
24K
Where Can I Find Molar Absorptivity Data for Chromate and Dichromate Ions?
Replies
5
Views
3K
Force that causes ions to move to a lower concentration
Replies
12
Views
2K
Empirical approach for predicting mass spectra
Replies
0
Views
2K
Spectrophotometry of chromate-dichromate equilibrium
Replies
3
Views
3K
Onsanger and Stefan-Maxwell Equations
Replies
9
Views
2K
2nd Order Reaction - Units of Volume is in molarity?
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top