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

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-416.684420
Energy at 298.15K-416.691860
Nuclear repulsion energy405.213625
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 CID/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' 3734 3475 61.36      
2 A' 3331 3099 1.13      
3 A' 3312 3082 6.50      
4 A' 3301 3071 9.50      
5 A' 3290 3061 9.33      
6 A' 3276 3049 0.39      
7 A' 1875 1745 240.13      
8 A' 1714 1595 9.99      
9 A' 1690 1573 5.45      
10 A' 1608 1497 4.17      
11 A' 1567 1458 19.56      
12 A' 1468 1366 103.90      
13 A' 1441 1341 5.99      
14 A' 1326 1234 2.53      
15 A' 1289 1200 3.21      
16 A' 1254 1167 167.23      
17 A' 1237 1151 8.58      
18 A' 1168 1087 43.02      
19 A' 1131 1052 171.79      
20 A' 1103 1026 11.31      
21 A' 1071 996 5.92      
22 A' 810 754 6.65      
23 A' 684 636 0.39      
24 A' 671 625 60.03      
25 A' 521 485 5.37      
26 A' 406 378 9.12      
27 A' 229 213 0.98      
28 A" 1050 977 0.07      
29 A" 1045 972 0.00      
30 A" 1011 941 2.32      
31 A" 924 860 0.00      
32 A" 866 806 0.01      
33 A" 765 712 187.87      
34 A" 733 682 2.61      
35 A" 601 559 121.64      
36 A" 455 424 14.43      
37 A" 446 415 3.91      
38 A" 173 161 1.55      
39 A" 91 84 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 26332.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 24502.3 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 CID/3-21G*
ABC
0.12879 0.04118 0.03120

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.216 0.000
C2 1.286 -0.318 0.000
C3 1.461 -1.696 0.000
C4 0.349 -2.536 0.000
C5 -0.937 -1.997 0.000
C6 -1.115 -0.618 0.000
C7 -0.130 1.692 0.000
O8 0.793 2.486 0.000
O9 -1.440 2.097 0.000
H10 2.129 0.356 0.000
H11 2.456 -2.114 0.000
H12 0.483 -3.607 0.000
H13 -1.796 -2.650 0.000
H14 -2.101 -0.184 0.000
H15 -1.483 3.076 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.39282.40662.77432.40361.39251.48132.40392.36902.13393.38583.85403.38282.13853.2213
C21.39281.38912.40842.78642.42022.45852.84633.64231.07902.14383.38633.86563.38984.3802
C32.40661.38911.39452.41722.79293.74274.23434.77562.15751.07912.14743.39443.86985.6070
C42.77432.40841.39451.39392.41294.25495.04134.96673.39622.14921.07972.14773.39615.9034
C52.40362.78642.41721.39391.39083.77624.80514.12533.86513.39502.14681.07922.15495.1025
C61.39252.42022.79292.41291.39082.51093.64322.73453.38743.87203.38982.14361.07713.7121
C71.48132.45853.74274.25493.77622.51091.21751.37152.62484.60155.33454.65092.72061.9355
O82.40392.84634.23435.04134.80513.64321.21752.26692.51424.89126.10085.75173.93702.3514
O92.36903.64234.77564.96674.12532.73451.37152.26693.97175.73746.02014.76112.37470.9796
H102.13391.07902.15753.39623.86513.38742.62482.51423.97172.49164.29154.94434.26444.5219
H113.38582.14381.07912.14923.39503.87204.60154.89125.73742.49162.47434.28574.94906.5157
H123.85403.38632.14741.07972.14683.38985.33456.10086.02014.29152.47432.47174.28926.9665
H133.38283.86563.39442.14771.07922.14364.65095.75174.76114.94434.28572.47172.48555.7350
H142.13853.38983.86983.39612.15491.07712.72063.93702.37474.26444.94904.28922.48553.3177
H153.22134.38025.60705.90345.10253.71211.93552.35140.97964.52196.51576.96655.73503.3177

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 119.781 C1 C2 H10 118.834
C1 C6 C5 119.438 C1 C6 H14 119.431
C1 C7 O8 125.652 C1 C7 O9 112.233
C2 C1 C6 120.660 C2 C1 C7 117.578
C2 C3 C4 119.820 C2 C3 H11 120.061
C3 C2 H10 121.384 C3 C4 C5 120.200
C3 C4 H12 119.908 C4 C3 H11 120.119
C4 C5 C6 120.101 C4 C5 H13 120.009
C5 C4 H12 119.893 C5 C6 H14 121.131
C6 C1 C7 121.762 C6 C5 H13 119.890
C7 O9 H15 109.695 O8 C7 O9 122.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability