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All results from a given calculation for C6H5COOH (benzoic acid)

using model chemistry: MP2=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/3-21G
 hartrees
Energy at 0K-416.851336
Energy at 298.15K-416.858426
HF Energy-415.982050
Nuclear repulsion energy401.139380
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3517 3358 36.16      
2 A' 3241 3094 1.29      
3 A' 3222 3076 10.65      
4 A' 3212 3066 8.26      
5 A' 3201 3056 7.23      
6 A' 3191 3046 0.09      
7 A' 1735 1656 122.89      
8 A' 1613 1540 3.32      
9 A' 1591 1519 7.07      
10 A' 1536 1467 4.28      
11 A' 1500 1433 13.24      
12 A' 1403 1340 79.07      
13 A' 1384 1322 8.24      
14 A' 1334 1273 1.62      
15 A' 1246 1190 0.67      
16 A' 1240 1183 0.09      
17 A' 1203 1149 131.03      
18 A' 1115 1064 14.52      
19 A' 1059 1011 52.60      
20 A' 1056 1009 168.91      
21 A' 1016 970 17.23      
22 A' 770 735 3.63      
23 A' 656 626 0.32      
24 A' 637 608 47.35      
25 A' 497 475 6.30      
26 A' 389 371 7.88      
27 A' 218 209 0.78      
28 A" 944 901 0.18      
29 A" 938 896 0.00      
30 A" 910 869 2.76      
31 A" 856 817 0.03      
32 A" 797 761 2.17      
33 A" 717 684 148.24      
34 A" 670 640 22.40      
35 A" 592 566 95.98      
36 A" 429 409 9.26      
37 A" 419 401 5.09      
38 A" 163 156 1.86      
39 A" 85 81 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 25149.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 24012.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/3-21G
ABC
0.12571 0.04050 0.03063

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.220 0.000
C2 1.296 -0.325 0.000
C3 1.466 -1.717 0.000
C4 0.340 -2.562 0.000
C5 -0.955 -2.009 0.000
C6 -1.130 -0.616 0.000
C7 -0.119 1.705 0.000
O8 0.822 2.512 0.000
O9 -1.454 2.111 0.000
H10 2.146 0.352 0.000
H11 2.465 -2.142 0.000
H12 0.470 -3.641 0.000
H13 -1.823 -2.663 0.000
H14 -2.120 -0.174 0.000
H15 -1.465 3.106 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.40562.42872.80272.42511.40581.49032.43522.38572.15053.41433.88943.41082.15653.2368
C21.40561.40252.43322.81132.44342.47452.87593.67371.08682.16133.41773.89803.41954.4037
C32.42871.40251.40782.43792.81943.77134.27754.81442.17781.08662.16653.42193.90385.6436
C42.80272.43321.40781.40762.43884.29225.09715.00573.42862.16671.08672.16513.42885.9488
C52.42512.81132.43791.40761.40423.80764.85814.15053.89773.42272.16621.08672.17445.1410
C61.40582.44342.81942.43881.40422.53223.68752.74633.41663.90603.42212.16081.08453.7374
C71.49032.47453.77134.29223.80762.53221.23971.39562.63914.63515.37894.68892.74521.9426
O82.43522.87594.27755.09714.85813.68751.23972.31192.53374.93576.16325.81183.98412.3632
O92.38573.67374.81445.00574.15052.74631.39562.31194.00765.78406.06544.78802.37970.9954
H102.15051.08682.17783.42863.89773.41662.63912.53374.00762.51434.33054.98444.29904.5419
H113.41432.16131.08662.16673.42273.90604.63514.93575.78402.51432.49574.31984.99046.5569
H123.88943.41772.16651.08672.16623.42215.37896.16326.06544.33052.49572.49294.32817.0193
H133.41083.89803.42192.16511.08672.16084.68895.81184.78804.98444.31982.49292.50695.7802
H142.15653.41953.90383.42882.17441.08452.74523.98412.37974.29904.99044.32812.50693.3448
H153.23684.40375.64365.94885.14103.73741.94262.36320.99544.54196.55697.01935.78023.3448

picture of benzoic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.742 C1 C2 H10 118.713
C1 C6 C5 119.317 C1 C6 H14 119.432
C1 C7 O8 126.005 C1 C7 O9 111.472
C2 C1 C6 120.715 C2 C1 C7 117.375
C2 C3 C4 119.953 C2 C3 H11 119.994
C3 C2 H10 121.544 C3 C4 C5 119.973
C3 C4 H12 120.023 C4 C3 H11 120.052
C4 C5 C6 120.299 C4 C5 H13 119.907
C5 C4 H12 120.004 C5 C6 H14 121.251
C6 C1 C7 121.910 C6 C5 H13 119.794
C7 O9 H15 107.490 O8 C7 O9 122.522
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability