force constant

Calculate the rotational constant Bo of deuterium chloride (DCI, i.e. hydrogen substituted by Calculate the rotational constant Ba of deuterium chloride (DCI, i.e. hydrogen substituted deutenum) and explain in what respect the vibration-rotation spectrum of DCI will differ from that of HCl in view of this value. Bg/cm1 5.

3. If a hypothetic vibrational motion of a molecule can be described by Tvib = 2A1 + E, within the point group C4v, how many bands/peaks would you expect to see in its IR spectrum? Explain your reasoning. C, (4mm) E 2C, C, 20, 20. h = 8 1 1 1 1 x² + y', z2 A, 1 1 1 -1 -1 R_ B, 1 -1 1 1 -1 x² – y? B, 1 -1 1 -1 1 xy 2 -2 0 0 (x, y) (R, R) (zx, yz)

(b) The lowest three vibrational energy levels of 127|35CI lie at 191.77, 573.06, and 951.34 cm-1. Determine the force constant, zero-point energy, well- depth and bond dissociation energy for 127135CI.

1. Carbon monoxide has an equilibrium bond length of 1.128 Å and a spring constant of k = 1.118 PHz² amu. Using the atomic masses mc = 12.011 amu and mo = 15.999 amu, determine all the wavenumbers visible in the rovibrational Raman spectrum between 2100 cm¹ and 2175 cm-1.

Nitesh

This question pertains to vibrational spectroscopy. Which of the following molecules would have a pure vibrational spectrum and why? HCl, CO2, N2, H2O What is the selection rule for vibrational spectroscopy? The wavenumber of the fundamental vibrational transition of Cl2 is 565 cm-1. Calculate the force constant of the bond.

In the characterization of the acid content of petroleum crude, a scientist found the acidic carbonyl (C=0) bond at 1685 cm-1 in the measured Raman spectra. If a blue laser line at 488 nm was used, calculate the laser frequency the absolute frequency of the C3DO stretching mode. iii) If a red laser at 633 nm was used for the analysis, what is the laser frequency and what is the absolute frequency of the C=0 at this wavelength?

The moment of inertial of 12 C-16 O is I = 1.454 × 10°46 kg*m². The molecule also has a force constant for the C-O bond of 1920N*m. Take the atomic masses of 12 C to be 12.00aμ and 160 to be 16.00aµμ and the conversion factor from 16 atomic mass unit to kg to be 1, 66054 x 1027 kμ. a) Calculate the bond length for the 12 C-1 O molecule b) Calculate a the reduced mass for the 12 C-16 O molecule c) Calculate the vibrational frequency of 12 C-160 d) Calculate the zero point vibrational energy of this molecule e) Calculate the moment of inertia for the molecule f) Calculate the rotational energy of the J = 1 and J = 2 energy levels

(4) For a rotational-vibrational spectrum of H8'Br (B = 8.46 cm-1) taken at 520 K, determine the R-branch transition that is expected to be the most intense.