Which of the following transitions are electric-dipole allowed?(i) 2Π ↔ 2Π, (ii) 1Σ ↔ 1Σ, (iii) Σ ↔ Δ, (iv) Σ+ ↔ Σ−, (v) Σ+ ↔ Σ+.

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

A: SOLUTION: Step 1: The reduced mass of the chlorine is calculated as follows:

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Q: Assume that the states of the π electrons of a conjugated molecule can be approximated by the…

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Q: Calculate the frequency and wavenumber of the J = 2 ← 1 transition in the pure rotational spectrum…

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

Q: 8C.4 (a) the moment of inertia of a CH4 molecule is 5.27 x 10^-47 kg m^2. What is the minimum energy…

A: The answer for first question is given below. Kindly repost the other question as separate one

Q: The ammonia molecule NH3 has vibrational modes. 6 4 7 12

A: In a molecule the number of vibrational modes can be determined by using the following formula:

Q: 1/ Please explain the answer in detail

A: The energy difference between consecutive rotational levels can be calculated as ∆E = 2 B (J + 1)

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

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Q: Assume 1,3,5 -hexatriene to be a linear molecule and model the pi electrons as particles in a…

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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: a. Given that the bond length of 'H1°F is 0.91 angstrom (1 angstrom = 10-10 m), calculate the %3D…

A: Welcome to bartleby!  As per company guidelines we can answer three parts .I have answered first…

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

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Q: Calculate the ratio A/B for transitions with the following characteristics: (i) 500 MHz…

A: i) The formula to calculate the ratio A/B for transition is given below. Where, A is the Einstein’s…

Q: The moment of inertia of CH4 can be calculated from the expression I=8/3 mHR2 where R is the C-H…

A: a. Methane is a spherical top molecule, for which the rotational energy is given by the expression:…

Q: Which of the following transitions are electric-dipole allowed?(i) 1Σg+ ↔ 1Σu+, (ii) 3Σg+ ↔ 3Σu+,…

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Q: 13B.1(a) The line marked A in Fig. 13.3 is the fluorescence spectr benzophenone in solid solution in…

A: 13B.1(a) This problem belongs to the vibrational spectroscopy of the heteronuclear diatomic molecule…

Q: 3. How many vibrational modes do each of the following have? a) Azulene, C₁0H₂: b) Ammonia, NH3:

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Q: What will the frequency of a modulated signal from a Michelson interferometer with a mirror velocity…

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Q: How many vibrational modes are there for the molecule NC–(C≡C–C≡C–)8CN detected in an interstellar…

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Q: Using the relevant transition moment integrals, demonstrate that the probability of a vibration…

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Q: How many normal modes of vibration are there for the following molecules: (i) C6H6, (ii) C6H5CH3,…

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Q: If the spacings between adjacent vibrational features in a photoelectron spectroscopy experiment…

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Q: 2/ Please explain the answer in detail The J = 0 to j = 1 transition for carbon monoxide (12C160)…

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Q: How many vibrational modes are there for the molecule NC–(C≡C–C≡C–)10CN detected in an interstellar…

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Q: What will the frequency of a modulated signal from a Michelson interferometer with a mirror velocity…

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Q: 1/ Please explain the answer in detail The J = 0 to J = 1 transition for carbon monoxide (12C160)…

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Q: The infra-red stretching frequency Vco of P-S follows the order (P) Mn(CO), (Q) CO (R) H3B – CO (S)…

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

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Q: What terms (expressed as S, D, etc.) can arise from the [He]2s22p 13d1 excited configuration of…

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Q: what is the absolute energy (wavenumbers) for hydrogn from n=6 to n=1

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Q: What is the speed of a photoelectron ejected from a molecule with radiation of energy 21 eV and…

A: the speed of  photoelectron is measured applying this formula = E = 1/2 mv2

Q: Which of the vibrational modes shown for the tetrahedral methane molecule are IR active? (i) (ii)…

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Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.