Calculation of the magnetic hyperfine interaction in theEandXstates of iodine with the separatedhyphen;atom theory

摘要

Using the separatedhyphen;atom representation of a molecular state, simple analytic calculations of the magnetic hyperfine interaction in theEandXstates of I2are given. The value of the magnetic hyperfine constantCin the ionhyphen;pair stateEwas found to be strongly dependent on the assumed dissociation asymptote for this state. Comparison with the experimental result clearly shows the correlation of theEstate to the3P2state of I+. In the ground stateXour predicted value for theCconstant in thevPrime;=83 level, C83=51 kHz is in good agreement with the measured valueC83=59plusmn;5 kHz. Thus, the separatedhyphen;atom theory provides a simple way of evaluating the hyperfine structure of molecular states with respect to their dissociation limits, giving an excellent test of their atomic origin.