HNO2 Resonance: Liquid Phase Impact?

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Discussion Overview

The discussion centers around the resonance characteristics of the HNO2 molecule and whether the state of matter, specifically the liquid phase, affects resonance. Participants explore the implications of molecular stability and hydrogen bonding on resonance in different states.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether resonance exists in the liquid phase of HNO2, suggesting that it may not due to the properties of the liquid state.
  • Another participant argues that most molecules, including H2O, exhibit some form of resonance in the liquid phase, challenging the initial claim about HNO2.
  • A different viewpoint suggests that hydrogen bonding in the liquid phase could influence resonance, raising the question of whether this is a valid assumption.
  • One participant expresses uncertainty about the impact of hydrogen bonding on resonance, noting that vibrational modes should still be present in the molecule.
  • A suggestion is made to investigate UV-VIS measurements of HNO2 in the liquid phase to gather more information.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether resonance is affected by the liquid phase for HNO2. Multiple competing views remain regarding the influence of hydrogen bonding and the general behavior of resonance in liquid states.

Contextual Notes

Participants express uncertainty about the relationship between molecular stability, hydrogen bonding, and resonance, indicating that further investigation may be needed to clarify these points.

Karan Punjabi
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Guys, consider a molecule of HNO2, in this molecule there will be resonance for its stability. But i want to ask that do states of matter makes a difference in Resonance or not? Because I think in liquid phase there will be no resonance in HNO2 ? Please help.
 
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Karan Punjabi said:
Guys, consider a molecule of HNO2, in this molecule there will be resonance for its stability. But i want to ask that do states of matter makes a difference in Resonance or not? Because I think in liquid phase there will be no resonance in HNO2 ? Please help.

What's so special about HNO2 that it won't have a "resonance" in its liquid phase? After all, most, if not all, molecules will have some form of resonance states in the liquid phase. See, for example, H2O:

http://www1.lsbu.ac.uk/water/water_vibrational_spectrum.html

This really should have been posted in the Atomic/Molecular/Solid State forum.

Zz.
 
ZapperZ said:
What's so special about HNO2 that it won't have a "resonance" in its liquid phase? After all, most, if not all, molecules will have some form of resonance states in the liquid phase. See, for example, H2O:

http://www1.lsbu.ac.uk/water/water_vibrational_spectrum.html

This really should have been posted in the Atomic/Molecular/Solid State forum.

Zz.
I think due to stability given by hydrogen bonds in the liquid phase there might not be any resonance . Am I right?
 
Karan Punjabi said:
I think due to stability given by hydrogen bonds in the liquid phase there might not be any resonance . Am I right?

I don't know. But even if this is true (it isn't true for water), why would any other resonance associated with other bonds be gone? The fact that it is still a molecule means that there are still vibrational modes present.

Have you done a search on any UV-VIS measurement of this molecule in liquid phase?

Zz.
 

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