Question

3-23. Determine the symmetries of the normal modes of vibration of the following molecules: a. b. PH$_3$ c. CH$_4$ d. linear C$_4$ e. C$_3$H$_3^+$ f. CH$_3$CN g. FeF$_6^{3-}$ (ligands on cartesian axes) h. C$_3$H$_4$ (allene)

          3-23. Determine the symmetries of the normal modes of vibration of the following
molecules:
a. 
b. PH$_3$
c. CH$_4$
d. linear C$_4$
e. C$_3$H$_3^+$
f. CH$_3$CN
g. FeF$_6^{3-}$ (ligands on
cartesian axes)
h. C$_3$H$_4$ (allene)

Added by Kristina H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Lottie Adams

12/08/2021

Step 1

- a. PH3: $C_{3v}$ - b. CH4: $T_d$ - c. $C_3H_3^+$: $D_{3h}$ - d. Linear $C_4$: $D_{\infty h}$ - e. CH3CN: $C_{3v}$ - f. $FeF_6^{3-}$: $O_h$ - g. $C_3H_4$ (allene): $D_{2d}$ Show more…

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3-23. Determine the symmetries of the normal modes of vibration of the following molecules: a. PH3 b. CH4 c. C3H3+ d. linear C4 e. CH3CN f. FeF63- (ligands on cartesian axes) g. C3H4 (allene)