- More Questions...
- What are Limitations of Rotational Spectra?
5137 Views
- Explain the significance of Force constant
6556 Views
- Discuss the vibrational spectra of simple diatomic molecules vibrating Harmonically.
5569 Views
- Explain the significance of Zero Point Energy.
10037 Views
- Why diatomic molecules should be considered as anharmonic oscillator.
5385 Views
By Sunil Bhardwaj
4266 Views
When potential energy is plotted against the displacement of a molecule undergoing Harmonic vibrations due to stretching. It represents a parabolic curve with equilibrium point at zero point energy. It is also seen that the vibrational energy levels are equally spaced.
But, however, the molecules are not taken as perfect harmonic oscillators. Because, The atoms approach each other when the molecule is pressed, and the vibrational forces will be greater because of the increase in the electronic cloud. When the pressed molecule is released, the atoms move away from each other and the electronic cloud decreases. This makes the bond weaker.
In harmonic oscillators, the vibrational energy levels are equally spaced. In anharmonic oscillators, the difference between two consecutive vibrational energy levels goes on decreasing. At higher energy levels this difference becomes very less and the transition of energy from one level to another becomes possible. Therefore, for anharmonic oscillator, the transition is not only ?Evib = ±1. but also for higher transitions.
When the bond is stretched considerably, it ruptures and the molecule dissociates. This energy required to dissociate the molecule is known as bond dissociation energy.
- Discuss the vibrational spectra of simple diatomic molecules vibrating anharmonically.
13009 Views
- Rotational Vibrational Spectra of Diatomic molecules.
5299 Views
- What is P and R Branch in Rotational - Vibrational Spectra.
4640 Views
- Why HCI, CO and NO are IR active, While H2, O2, Cl2 are IR inactive.
5440 Views
- Discuss Different types of Vibrations in Polyatomic molecules.
4664 Views
- More Questions...
Prof. Gianfranco Coletti
Shared publicly - 2019-08-23 00:00:00
Don’t want your columns to simply stack in some grid tiers? Use a combination of different classes for each tier as needed. See the example below for a better idea of how it all works.
Prof. Maheshwar Sharon
Shared publicly - 2019-08-24 00:00:00
For grids that are the same from the smallest of devices to the largest, use the .col and .col-* classes. Specify a numbered class when you need a particularly sized column; otherwise, feel free to stick to
sunil
Shared publicly - 2023-02-28 11:09:52
this is
ss
Shared publicly - 2023-02-28 10:48:10
gsgsg
Latest News
-
Become an Instructor
4 March, 2018
Apply to join the passionate instructors who share their expertise and knowledge with the world. You'll collaborate with some of the industry's best producers, directors, and editors so that your content is presented in the best possible light..