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

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-419.595569
Energy at 298.15K-419.602524
HF Energy-418.320887
Nuclear repulsion energy404.048070
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 QCISD/6-31G*
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' 3714 3537 81.77      
2 A' 3241 3087 2.66      
3 A' 3236 3081 4.49      
4 A' 3219 3066 18.71      
5 A' 3209 3056 13.45      
6 A' 3196 3044 0.45      
7 A' 1848 1760 280.26      
8 A' 1699 1618 12.83      
9 A' 1677 1597 5.02      
10 A' 1566 1491 4.01      
11 A' 1517 1444 19.95      
12 A' 1430 1361 116.16      
13 A' 1372 1307 5.07      
14 A' 1329 1266 3.93      
15 A' 1253 1193 189.60      
16 A' 1228 1170 55.18      
17 A' 1206 1148 1.81      
18 A' 1145 1091 46.46      
19 A' 1122 1068 47.57      
20 A' 1067 1016 10.24      
21 A' 1028 979 0.60      
22 A' 787 750 12.23      
23 A' 642 611 54.08      
24 A' 634 604 0.04      
25 A' 501 477 5.09      
26 A' 388 370 6.12      
27 A' 222 211 1.23      
28 A" 941 896 0.31      
29 A" 929 885 0.37      
30 A" 913 869 0.67      
31 A" 858 817 0.07      
32 A" 791 754 0.05      
33 A" 724 690 164.97      
34 A" 629 599 50.24      
35 A" 574 546 14.16      
36 A" 422 402 6.28      
37 A" 403 384 0.47      
38 A" 159 151 0.64      
39 A" 59 56 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 25438.4 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 24225.0 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 QCISD/6-31G*
ABC
0.12867 0.04078 0.03097

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.220 0.000
C2 1.280 -0.350 0.000
C3 1.422 -1.737 0.000
C4 0.288 -2.555 0.000
C5 -0.989 -1.986 0.000
C6 -1.138 -0.598 0.000
C7 -0.098 1.706 0.000
O8 0.852 2.468 0.000
O9 -1.381 2.152 0.000
H10 2.147 0.306 0.000
H11 2.416 -2.180 0.000
H12 0.399 -3.639 0.000
H13 -1.871 -2.624 0.000
H14 -2.128 -0.149 0.000
H15 -1.318 3.128 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.40062.41832.78952.41681.40091.48942.40412.37552.14923.40533.87873.40372.15933.1927
C21.40061.39412.41812.79682.43002.47452.84983.65251.08762.15453.40453.88553.41324.3405
C32.41831.39411.39852.42332.80133.76294.24284.79382.16761.08872.15933.41003.88815.5828
C42.78952.41811.39851.39772.42124.27825.05434.99443.41222.16101.08922.15973.40905.9052
C52.41682.79682.42331.39771.39573.79744.81874.15643.88423.41032.15831.08882.16085.1239
C61.40092.43002.80132.42121.39572.52743.65452.76083.40713.89003.40692.15461.08683.7299
C71.48942.47453.76294.27823.79742.52741.21761.35882.64604.62835.36734.67862.74971.8735
O82.40412.84984.24285.05434.81873.65451.21762.25532.52034.90406.12295.77383.96562.2679
O92.37553.65254.79384.99444.15642.76081.35882.25533.98255.76106.05824.80112.41950.9775
H102.14921.08762.16763.41223.88423.40712.64602.52033.98252.50064.31454.97294.29924.4689
H113.40532.15451.08872.16103.41033.89004.62834.90405.76102.50062.48884.30984.97686.4897
H123.87873.40452.15931.08922.15833.40695.36736.12296.05824.31452.48882.48644.30806.9806
H133.40373.88553.41002.15971.08882.15464.67865.77384.80114.97294.30982.48642.48785.7780
H142.15933.41323.88813.40902.16081.08682.74973.96562.41954.29924.97684.30802.48783.3755
H153.19274.34055.58285.90525.12393.72991.87352.26790.97754.46896.48976.98065.77803.3755

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 119.835 C1 C2 H10 118.938
C1 C6 C5 119.579 C1 C6 H14 119.924
C1 C7 O8 124.966 C1 C7 O9 112.951
C2 C1 C6 120.313 C2 C1 C7 117.756
C2 C3 C4 119.967 C2 C3 H11 119.892
C3 C2 H10 121.227 C3 C4 C5 120.145
C3 C4 H12 119.945 C4 C3 H11 120.140
C4 C5 C6 120.160 C4 C5 H13 120.076
C5 C4 H12 119.909 C5 C6 H14 120.497
C6 C1 C7 121.931 C6 C5 H13 119.764
C7 O9 H15 105.462 O8 C7 O9 122.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability