Intro Spectroscopy
5th Edition
ISBN: 9781305221796
Author: PAVIA
Publisher: Cengage
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However, the molecule we can encounter everyday continuously vibrates and interact with the surrounding causing its bond vector to vary slightly. According to a new spectroscopy analysis, the adjacent bond vectors was found to be
A = 0.82i + 0.99j + 0.84k
B = 1.09i + -1.01j + -0.97k
What is the angle (in degrees) between the bonds based on this new data?
The first three absorption lines in the pure rotational spectrum of gaseous 12C16O are found to have the frequencies 1.15 × 1011, 2.30 × 1011, and 3.46 × 1011 s21. Calculate:(a) The moment of inertia I of CO (in kg m2)(b) The energies of the J 5 1, J 5 2, and J 5 3 rotational levels of CO, measured from the J 5 0 state (in joules)(c) The CUO bond length (in angstroms)
Why do very similar gases, such as HCl and DCl, give bands at quite different vibrational frequencies?
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- The photon frequency that would be absorbed by the NO molecule in a transition from vibration state v = 0 to v = 1, with no change in rotation state, is 56.3 THz. The bond between the atoms has an effective spring constant of 1 530 N/m. (a) Use this information to calculate the reduced mass of the NO molecule. (b) Compute a value for using Equation 42.4. (c) Compare your results to parts (a) and (b) and explain their difference, if any.arrow_forwardThe equilibrium dissociation energy of O2 is De = 4.314 ev. The basic vibration frequency of O2 is f = 1620.0 cm -1. So how much energy is actually needed to dissociate O2 molecules at n = 3 vibrational level? Give your answer in EV.arrow_forwardin a p type germanium ni=2.1×10^19m^-3 denisty of baran 4.5^23 atoms/m^3 the electron nd holes mobility are. 4 nd. 2m^2v^-2s^-1 resp. what is its conductivity befor nd after additiin of boran atomsarrow_forward
- What is the distance from the center of one Si atom to the center of its nearest neighbor if the lattice constant is 4.25 A?arrow_forwardWrite the electron configuration for Fl (atomic number 114). How many valence electrons does it have?arrow_forwardConsider the NaCl molecule, for which the rotational inertia is 1.30x 10-45 kg*m2. If infrared radiation with wavelength 30 μ m is Raman-scattered from a free NaCl molecule, what are the allowed wavelengths of the scattered radiation?arrow_forward
- The figure above shows the absorption spectrum of the molecule HBr. Following the basic procedures of Section 9.6, find:(a) the energy of the “missing” transition;(b) the effective force constant k;(c) the rotational spacing 2B. Estimate the value of the rotational spacing expected for HBr and compare with the value deduced from the spectrum. Why are there only single lines and not double lines as in the case of HCl?arrow_forwardShow that the angle between any two of lines (bonds) joining a site of the diamond lattice to its four nearest neighbors is cos-1(-1/3)=109°28'arrow_forward
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