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. 2020 Oct 14;10(10):2021. doi: 10.3390/nano10102021

Table 3.

Vibrational modes of benzene molecule (composed of data from [34]).

Mode Number Symmetry Assignment Wavenumbers
cm−1
Covalent-Bond Attribution
1 a 1g 993 Breathing
2 3073 C–H stretching in phase
3 a 2g 1350 C–H in-plane in-phase bending
4 b 2g 707 C–C–C puckering
5 990 C–H out-of-plane trigonal bending
6 e 2g 606 C–C–C in-plane bending
7 3056 C–H stretching
8 1599 C–C stretching
9 1178 C–H in-plane bending
10 e 1g 846 C–H out-of-plane C6 libration
11 a 2u 673 C–H out-of-plane in-phase bending
12 b 1u 1010 C–C–C trigonal bending
13 3057 C–H trigonal bending
14 b 2u 1309 C–C stretching (Kekulé)
15 1146 C–H in-plane trigonal bending
16 e 2u 404 C–C–C out-of-plane bending
17 967 C–H out-of-plane bending
18 e 1u 1037 C–H in-plane bending
19 1482 C–C stretching
20a 3064 C–H stretching