Applet Launcher Applet 1 Applet 2 Applet 3 Applet 4 Applet 5 Applet 6   Rotational Raman Spectroscopy Isotopic Substitution 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   Q7.5 What is the nuclear spin of the H nucleus? Q7.6 What is the possible space quantisation of this nuclear spin? Q7.7 How many possible spin wave functions does this produce? Q7.8 Write these down, labelling them either symmetric or anti-symmetric. Q7.9 Use your findings to explain the difference in appearance of the spectra of and . Q7.10 How will nuclear spin affect the rotational spectrum at very low temperatures? Q7.11 What is the maximum intensity for the hydrogen spectrum, at 2500K? Q7.12 What is the maximum intensity for the deuterium spectrum, at 2500K? Q7.13 At what value of J do these maxima occur? Q7.14 Explain why the maximum intensities are different and why they occur for different J values. Q7.15 Compare and contrast, with reasoning, the rotational Raman spectrum of Tritium( H, I= ½) with those of hydrogen and deuterium.     << previous page www.physchem.ox.ac.uk next page >>