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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-416.877585
Energy at 298.15K-416.884664
HF Energy-415.982093
Nuclear repulsion energy400.938990
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/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' 3516 3408 23.76      
2 A' 3199 3100 1.43      
3 A' 3179 3081 8.76      
4 A' 3168 3070 12.39      
5 A' 3157 3060 9.54      
6 A' 3144 3048 0.34      
7 A' 1748 1694 164.22      
8 A' 1620 1570 5.59      
9 A' 1597 1548 5.72      
10 A' 1535 1487 4.50      
11 A' 1497 1451 13.78      
12 A' 1409 1366 58.52      
13 A' 1379 1337 6.32      
14 A' 1268 1229 1.90      
15 A' 1236 1198 1.46      
16 A' 1200 1163 140.58      
17 A' 1182 1146 6.54      
18 A' 1110 1076 18.70      
19 A' 1063 1031 178.28      
20 A' 1054 1022 9.55      
21 A' 1015 983 13.09      
22 A' 768 745 4.36      
23 A' 653 633 0.29      
24 A' 636 616 50.28      
25 A' 495 480 5.62      
26 A' 387 375 8.41      
27 A' 218 211 0.75      
28 A" 960 931 0.13      
29 A" 951 922 0.01      
30 A" 927 899 2.29      
31 A" 860 833 0.02      
32 A" 801 777 0.67      
33 A" 714 692 157.96      
34 A" 677 656 8.35      
35 A" 582 564 103.48      
36 A" 426 413 9.80      
37 A" 417 405 4.42      
38 A" 163 158 1.56      
39 A" 86 83 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 24999.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 24229.2 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/3-21G
ABC
0.12574 0.04042 0.03059

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.219 0.000
C2 1.299 -0.320 0.000
C3 1.475 -1.713 0.000
C4 0.350 -2.562 0.000
C5 -0.948 -2.015 0.000
C6 -1.128 -0.621 0.000
C7 -0.127 1.708 0.000
O8 0.809 2.514 0.000
O9 -1.461 2.111 0.000
H10 2.149 0.361 0.000
H11 2.479 -2.136 0.000
H12 0.485 -3.644 0.000
H13 -1.817 -2.674 0.000
H14 -2.122 -0.181 0.000
H15 -1.479 3.105 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.40652.43102.80332.42781.40651.49362.43272.38992.15373.41953.89333.41632.15933.2428
C21.40651.40382.43402.81472.44492.47922.87643.67791.08952.16533.42143.90433.42344.4106
C32.43101.40381.40912.44192.82213.77734.27924.82092.18071.08952.16953.42863.90935.6519
C42.80332.43401.40911.40872.43914.29615.09645.01143.43202.17111.09002.16943.43205.9551
C52.42782.81472.44191.40871.40563.81254.85814.15803.90383.42932.16891.08962.17765.1482
C61.40652.44492.82212.43911.40562.53473.68482.75243.42063.91163.42542.16511.08743.7431
C71.49362.47923.77734.29613.81252.53471.23521.39332.64494.64375.38604.69582.74691.9446
O82.43272.87644.27925.09644.85813.68481.23522.30492.53634.94076.16595.81403.98122.3630
O92.38993.67794.82095.01144.15802.75241.39332.30494.01185.79286.07444.79792.38540.9945
H102.15371.08952.18073.43203.90383.42062.64492.53634.01182.51834.33644.99344.30514.5495
H113.41952.16531.08952.17113.42933.91164.64374.94075.79282.51832.50004.32904.99886.5679
H123.89333.42142.16951.09002.16893.42545.38606.16596.07444.33642.50002.49724.33397.0288
H133.41633.90433.42862.16941.08962.16514.69585.81404.79794.99344.32902.49722.51145.7889
H142.15933.42343.90933.43202.17761.08742.74693.98122.38544.30514.99884.33392.51143.3485
H153.24284.41065.65195.95515.14823.74311.94462.36300.99454.54956.56797.02885.78893.3485

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 119.777 C1 C2 H10 118.729
C1 C6 C5 119.384 C1 C6 H14 119.407
C1 C7 O8 125.862 C1 C7 O9 111.711
C2 C1 C6 120.716 C2 C1 C7 117.459
C2 C3 C4 119.837 C2 C3 H11 120.035
C3 C2 H10 121.494 C3 C4 C5 120.133
C3 C4 H12 119.942 C4 C3 H11 120.128
C4 C5 C6 120.153 C4 C5 H13 119.999
C5 C4 H12 119.925 C5 C6 H14 121.209
C6 C1 C7 121.825 C6 C5 H13 119.848
C7 O9 H15 107.889 O8 C7 O9 122.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability