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Unformatted text preview: (3) (b) Show that the form of Morse potential given in equation (1) is equivalent to that given at the bottom of page 164 of McQuarrie and Simon. 2. For the 1 81 H Br isotope of the HBr molecule, spectroscopic measurements give 1 e D 362.7kJ mol ,r 141.44pm-=-= , and 1 e 2 c 2648.98cm- = = % . (a) From this data compute the values of the Morse parameters, A, a, and b for HBr (see problem 2). Given your result for A in 1 kJ mol--. (b) Using these values, plot ( 29 M U r for HBr. Use 1 kJ mol--as your energy unit. (c) One the same graph plot the harmonic oscillator potential for HBr. ( 29 ( 29 2 2 1 2 H0 e e e U r D r r = -+ -, and compare with ( 29 M U r . (d) Compute e e e D ,D ,r , and % for the 2 79 H Br isotope of HBr. Give your results for D and e D in 1 kJ mol--. (In this problem assume e D D 1 2 =- h for all isotopes of HBr.) 2 Due Monday March 24, 2008...
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- Fall '08