I want to know about the dipole moment of this molecule. I think the molecule has no dipole moment, but a book says me that it has a dipole moment.

  • $\begingroup$ Why do you think it has 0 dipole moment? $\endgroup$ – Dissenter Dec 13 '14 at 22:06

The dipole moment is 2.45 Debye. The molecule is dipolar as you have asymmetrical electron distribution around both the carbon atoms.

Source: Complete Structure of Gauche 1,1,2,2-Tetrafluoroethane Determined by Microwave Spectroscopy, J. Phys. Chem. A, 2000, 104, 9489-9493.

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  • $\begingroup$ You found data about another isomer that was asked. $\endgroup$ – Mithoron May 15 '15 at 9:59
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    $\begingroup$ I've corrected my answer - apologies. $\endgroup$ – J. LS May 15 '15 at 10:44

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