Applet Launcher Applet 1 Applet 2 Applet 3 Applet 4 Applet 5 Applet 6   Rotational Raman Spectroscopy Interpreting the Spectrum page 2 of 2     Practical Navigator Introduction The Raman Effect Experimental Techniques 1. Rotational Raman Spectroscopy Interpreting the Spectrum Effect of Bond Length Centrifugal Distortion Intensities of Spectral Lines Nuclear Spin Statistics 2. Real Diatomic Molecules Temperature Spectrum of Nitrogen Isotopic Substitution Nuclear Spin Statistics Predict the Spectrum of Oxygen   You can click on the J+2 or J-2 buttons to show the transitions that lead to the Stokes and Anti Stokes transitions respectively. Q1.1 What is the energy of the laser in wavenumber units? Q1.2 What is this energy in Joules? Q1.3 Calculate the moment of inertia for . Q1.4 Write down the equation for the rotational constant B. Q1.5 Calculate the rotational constant, B, for this molecule. Q1.6 What is the equation for the rotational energy level of a rigid rotor? Q1.7Calculate the energy in wavenumber units for the first 4 energy levels Q1.8 Calculate the position of the first three Stokes and Anti-Stokes lines both in wavenumbers, measured from the exciting line, and in absolute wavelength. Clicking on a particular spectral line shows which rotational energy levels are involved in that transition. Click on the first three lines and check if your answers are correct. If not check the units carefully. To remove the information box, click anywhere inside the spectra window.     << previous page www.physchem.ox.ac.uk next page >>