Question

In: Chemistry

The fundamental vibrational transition of the 12C16O in the electronic ground state from v=0 to v=1...

The fundamental vibrational transition of the 12C16O in the electronic ground state from v=0 to v=1 occurs at 2,170 cm-1. The bottom of the Morse potential for the anharmonic oscillator is well approximated by a parabola, the potential well for the harmonic oscillator, especially when the transition is measured with precision limited to 1 cm-1. a) Demonstrate that, in the harmonic oscillator approximation of the IR spectroscopy, the frequency of the fundamental transition is equal to the frequency of the oscillator in the zero energy state. b) What is the elastic force constant k of the 12C16O bond in the harmonic oscillator approximation? (Hint: you have to use the reduced mass of the diatomic oscillator. A12C = 12.000 amu, A16O = 15.995 amu, 1 amu = 1.6605 x 10-27 kg, c = 2.9979x108 m s-1) c) The first overtone of the 12C16O occurs at 4,260 cm-1. Compare this frequency against the fundamental frequency and state 2 points of departure from the harmonic oscillator results predicted by Quantum Mechanics.

Solutions

Expert Solution


Related Solutions

The fundamental (v = 0 ! v = 1) vibrational transition for H35Cl occurs at 2885...
The fundamental (v = 0 ! v = 1) vibrational transition for H35Cl occurs at 2885 cm-1 . Close inspection of a high-resolution infrared spectrum of this transition shows the following absorptions (in cm-1 ) for the J ! (J-1) branch: 2865.10, 2843.62, 2821.56, 2798.94, 2775.76, 2752.04, 2727.78, 2703.01, and 2677.73. From these data, determine a) the rotational-vibrational coupling constant, αe b) the rotational constant, Be c) the bond distance
Calculate the vibrational energy difference, in cm-1, between the v=0 and v=1 energy level in a...
Calculate the vibrational energy difference, in cm-1, between the v=0 and v=1 energy level in a hydrogen chloride-35 molecule. Isotope masses to three decimal places are taken from NIST and force constants from hyperphysics. Use the isotope mass, not the average mass.
Using the Einstein model, sketch a diagram of the ground state vibrational energies of carbon and...
Using the Einstein model, sketch a diagram of the ground state vibrational energies of carbon and lead atoms, and the potentials which confine them. Explain how the Einstein model fails, and go on to explain how the Debye model makes up for its failures.
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to...
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 5 excited state. The atom returns to the ground state by emitting two photons, one in dropping to n = 4 state, and one in further dropping to the ground state. What are the photon wavelengths of (a) the first and (b) the second transitions?
A hydrogen molecule (H2) in its electronic, vibrational and rotational base state, absorbs a photon of...
A hydrogen molecule (H2) in its electronic, vibrational and rotational base state, absorbs a photon of frequency 1,356 x 1014 Hz and has a transition to a state with n = 1, l = 1, while remaining in the same electronic state. Then it has a transition to the state with n = 0 and l = 2, emitting a photon with a frequency of 1,246.x 1014 Hz a) Calculate the moment of inertia of the molecule b)  Determine the frequency...
(a) What is the electronic configuration of a scandium atom in its ground state?
Consider a scandium atom. (a) What is the electronic configuration of a scandium atom in its ground state? (b) What is the orbital angular momentum, spin angular momentum and total angular momentum of a scandium atom in its ground state? In its lowest excited state? (c) What is the lowest excited electronic configuration of scandium.
What is the most likely spin multiplicity in the ground electronic state of an alkane, and...
What is the most likely spin multiplicity in the ground electronic state of an alkane, and of a radical such as ·CH3? Explain how you deduce this.
Bound state in potential. Where V(x)=inf for x<0 V(x)=0 for 0 ≤ x ≤ L V...
Bound state in potential. Where V(x)=inf for x<0 V(x)=0 for 0 ≤ x ≤ L V (x) = U for x > L Write down the Schrödingerequation and solutions (wavesolutions) on general form for the three V(x).
For a bromine (Br) atom in its ground electronic state: How many electrons are there in...
For a bromine (Br) atom in its ground electronic state: How many electrons are there in the 4s orbital?    (Enter an integer.) How many electrons are there in the 3d orbitals?    (Enter an integer.) How many electrons are there in the 4p orbitals?    (Enter an integer.) How many unpaired electrons are there?    (Enter an integer.) To what block does this atom belong?    (Enter s, p, d, or f.)
Xn is a Markov Chain with state-space E = {0, 1, 2}, and transition matrix 0.4...
Xn is a Markov Chain with state-space E = {0, 1, 2}, and transition matrix 0.4 0.2 0.4 P = 0.6 0.3 0.1 0.5 0.3 0.2 And initial probability vector a = [0.2, 0.3, 0.5] For the Markov Chain with state-space, initial vector, and transition matrix discuss how we would calculate the follow; explain in words how to calculate the question below. a) P(X1 = 0, X2 = 0, X3 = 1, X4 = 2|X0 = 2) b) P(X2 =...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT