Question: The square planar molecule XeCl 4 4 has 9 different vibrational modes. Three of the bending vibrational modes are shown below. XeF4_vibrations_3.gif - Left: In-plane
The square planar molecule XeCl 4 4 has 9 different vibrational modes. Three of the bending vibrational modes are shown below. XeF4_vibrations_3.gif - Left: In-plane Xe-Cl scissoring. - Middle: Out-of-plane Xe-Cl wagging. - Right: Out-of-plane Xe-Cl twisting. Which of these three motions will lead to the absorption of IR light and therefore correlate to a peak in the IR spectrum of this compound? Choice 1 of 5:A. Both Xe-Cl scissoring and Xe-Cl wagging will absorb IR light. Choice 2 of 5:B. Both Xe-Cl scissoring and Xe-Cl twisting will absorb IR light. Choice 3 of 5:C. Both Xe-Cl wagging and Xe-Cl twisting will absorb IR light. Choice 4 of 5:D. Only Xe-Cl wagging will absorb IR light. Choice 5 of 5:E. Only Xe-Cl twisting will absorb IR light
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