Which of the three vibrations of an AB2 molecule are infrared or Raman active when it is (i) angular, (ii) linear?

Q: What are the symmetry (irreducible representation) of the bending and asymmetric stretching…

A: The solution of the question is given below:

Q: Discuss the physical origins of the gross selection rules for microwave spectroscopy and rotational…

A: The gross selection rules give the knowledge about the allowed spectroscopic transitions. For…

Q: Determine how many IR and Raman active modes there are in C2V molecule SF4.

A: There are three IR active and 4 Raman active modes in SF4.

Q: 5. Another unit that is used quite frequently in microwave spectroscopy is GHz (Gigahertz, 1x 10°…

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Q: The wavenumber of the fundamental vibrational transition of 35Cl2 is 564.9 cm−1. Calculate the force…

A: Given, vibrational transition of 35Cl2 is 564.9 cm−1.

Q: A molecule in a liquid undergoes about 1.0 × 1013 collisions in each second. Suppose that (i) every…

A: The expression which relates linewidth and lifetime of vibrational transitions is as follows,…

Q: How many vibrational modes are there in a linear triatomic molecule? Using an example, describe…

A: We have to tell the number of vibrational modes are present in a linear triatomic molecule. So,…

Q: Consider the vibrational mode that corresponds to the boat-like bending of a benzene ring. Is it (i)…

A: Rule of mutual exclusion : According to this rule , for centrocymmetric ( point of inversion present…

Q: (i) Determine the IR and Raman active modes of vibrations for both the cis and trans isomers of…

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Q: Calculate the frequencies and wavelengths for the rotational transition J = 0 → J = 1 and J = 4 → J…

A: Given data: Rotational transition J = 0 → J = 1 and J = 4 → J = 5 for the HCl molecule. To find:…

Q: You will perform rotational spectroscopy on the diatomic molecule 25A2ºB (where A and B are generic…

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Q: Is the out-of-plane mode of a planar AB3 molecule infrared or Raman active?

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Q: For a 1H nucleus (a proton), what are the magnitude of the spin angular momentum and what are its…

A: Spin angular momentum for any proton is given by the formulae:            ......i)           here…

Q: The wavenumber of the fundamental vibrational transition of 79Br81Br is 323.2 cm−1. Calculate the…

A: Fundamental Vibrational transitionThe Wavenumber is defined as γ =γc= 12πckμFor Br2 , the effective…

Q: For 'H3$Cl molecule, (N¡/No) ratio at 300 K is 6.091 x 10² . Calculate the wavenumber ( in cm') for…

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Q: Which of the normal modes of (i) H2O, (ii) H2CO are infrared active?

A: Infrared active modes of (i) H2O, (ii) H2CO are given in step 2

Q: 1) Calculate the energy of one mole of UV photons of wavelength 300 nm and compare it with a typical…

A: NOTE : Since you've posted multiple independent questions,we're solving first question for you.If…

Q: What is the highest possible degeneracy of a vibration of a Cr(CO)6 molecule? Explain your answer.

A: To find: highest possible degeneracy of a vibration of a Cr(CO)6 molecule.

Q: Consider the vibrational mode that corresponds to the uniform expansion of the benzene ring. Is it…

A: The total number of vibrational mode in benzene is calculated by the formula shown below. The…

Q: What is the Doppler-shifted wavelength of a red (680 nm) traffic light approached at 60 km h−1?

A: Doppler effect refers to the change in the frequency of wave in between a relative motion of a wave…

Q: Predict the wavenumber of the 0 → 2 line of the rotational Raman spectrum of 14N2, for which B =…

A: It is a spectroscopic technique which is used for the determination of rotational and vibrational…

Q: The rotational constant of 127I35CI is 3.423 GHz. Ca lculate the ICI bond length.

A: Rotational Spectra is studied under microwave region. The rotational energy value is quantized . The…

Q: The spacing of lines in the microwave spectrum of 35Cl19F is 1.033 cm−1; calculate the moment of…

A: Study of rotating molecules is microwave spectroscopy where we irradiate our polar molecule with…

Q: Calculate the wavelength of the photon absorbed by CO in the following vibration-rotation…

A: For CO Molecule Reduced mass mr  =mC×mOmC+mO=11.387×10-27 kg

Q: The rotational constant of 12C16O2 (from Raman spectroscopy) is 11.70 GHz. What is the CO bond…

A: The rotational constant B (Hz) = 11.70 × 109 Hz. B (Joule)=h28π2.I=h28π2.μr2B (Hz)=h28π2.μ.r2On…

Q: The rotational Raman spectrum of 19F2 shows a series of Stokes lines separated by 3.5312 cm−1 and a…

A: The lines in the rotational Raman spectrum are seperated by 4B and so B = 3.5312/4 = 0.8828 cm-1 for…

Q: Calculate the frequency and wavenumber of the J = 3 ← 2 transition in the pure rotational spectrum…

A: The relation for energy for pure rotational spectroscopy is shown below:      EJ=BJJ+1For n=3…

Q: Is the transition A1g → E2u forbidden for electric dipole transitions in a D6h molecule?

A: The selection rule for electric transition states that the transition between gerade (g) to ungerade…

Q: The NaH molecule undergoes a rotational transition from J=0 to J=1 when it absorbs a photon of…

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Q: Calculate the frequency separation (in megahertz) of the nuclear spin levels of a 14N nucleus in a…

A: To calculate the frequency separation of N14

Q: assuming that the vibrations of a 35Cl2 molecule are equivalent to those of a harmonic oscillator…

A: The answer is given as follows

Q: The 1H35Cl molecule is quite well described by the Morse potential energy with hc ᷉  De = 5.33 eV,…

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Q: Calculate the separation between the two lowest levels for an O2 molecule in a one-dimensional…

A: Given: 1) Temperature (T) = 300 K 2) The planks constanct 'h' = 6.626× 10-34 J s   3) E=n2h28mL2…

Q: What is the energy separation between the n=4 and n=5 states for F2 molecule trapped within in one…

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Q: The pure rotational microwave spectrum (Topic 11B) of HCl has absorption lines at the following…

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Q: Which one isn’t not rotationally raman active? HCN, HF, Br2, CCL4

A: The answer is given below

Q: 5. What is the basis of vibrational spectroscopy. Derive the expression for natural frequency for…

A: We will discuss the basis of Vibrational spectroscopy. It is also called as IR Spectroscopy.

Q: Q1. a) Use vibrational analysis to identify which vibrations of the BrF5 molecule are IR and which…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following molecules may show a pure rotational Raman spectrum: (i) H2, (ii) HCl, (iii)…

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Q: Which of the normal modes of (i) H2O, (ii) H2CO are Raman active?

A: (i) For H2O Molecule:The water molecule has C2V symmetry and its elements are E, C2 σxz &…

Q: Calculate the separation between the two lowest energy levels for an N2 molecule in a one-…

A: Given,  mass of N2, m = 28 amu                             = 28x1.6605x10-27 kg Length = 2 cm =…

Q: Another of the excited states of the C2 molecule has the valence electron configuration 1σg2 1σu2…

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Q: Calculate the energy of the J=0 to J=1 rotational transition of the O₂ molecule with a bond length…

A: Answer: To solve this question we have to use the relation between energy and rotational quantum…