Dipole moments interhalogen compounds

In a study of the interhalogen compounds de Jong et al 20 find that relativistic contributions increase the electric dipoles moment while the quadru-pole moment and the dipole polarizability vary irregularly. The relativistic contribution to the dipole and quadrupole moments of molecules containing I2 is between 10% and 20% of the whole and the contributions are not negligible in the other cases. 

Chlorine monofluoride, CIF, and iodine monofluoride, IF, are interhalogen compounds—compounds that contain bonds between different halogen elements. Which of these molecules has the larger dipole moment ... 

Table 6.1. Gaseous heteronuclear diatomic molecules AB(g) hydrogen halides HX interhalogen compounds XK alkali metal hydrides MH, and inter-alkali-metal compounds MM. Electric dipole moments, ionic characters, qjc equilibrium bond distances. Re, vibrational wavenumbers, < dissociation energies at zero K, Dq rednced masses of the predominant isotopomers, /tm and force constants,. ...

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