Consider the diagram to answer the following questions: a. Assuming this is fund
ID: 515933 • Letter: C
Question
Consider the diagram to answer the following questions: a. Assuming this is fundamental vibration label to the two vibrational levels directly on the diagram b. Does this diagram indicate a Raman or regular spectrum? Explain. c. Label the different branches of the spectrum on the diagram. d. According to the diagram, would the molecule be absorbing or emitting photons? Explain. Calculate the wavenumber of the lowest energy vibrational energy transition for^1H^19F. (^1H = 1.008amu, ^19F = 18.9984amu, and k_f = 965.7 N m^-s1). Provide a VSEPR structure for the following molecules and state whether according to the gross rotational selection rules they would be have a pure microwave rotational spectrum a. Boron trihydride b. Dichloromethane c. Difluoroethyne d. Would any of the previous compounds that are NOT active in the pure rotational spectrum be expected to be active in the Raman rotational spectrum? If there are any state which compounds.Explanation / Answer
4. According to VSEPR theory,
a. Boron trifluoride is expected to show a trigonal planar structure with sp2 hybridisation of boron atom.
b. dichloromethane is expected to show a tetrahedaral structure with sp3 hybridisation.
c. difluoroethyne is expected to show a linear structure with sp hybridisation.
All the three molecules are not raman active according to gross selection rules since they donot possess permanent dipole moment.