where S = 2.9352 1060 C2 mol1
. Fig. 2 shows the spectra
of caffeine in water given as a function of molar decadic
absorption coefficient over wave number versus wave number
(eðmÞ=~m versus ~m). The integrated area under this curve
105.92 m2 mol1 was obtained by integrating from
~m1 ¼ 33; 000 cm1 to ~m2 ¼ 41; 000 cm1 therefore, the transitional
dipole moment of caffeine in water lfi = 10.40
1030 C m was obtained.
Simila