return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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-419.646337
Energy at 298.15K-419.653311
HF Energy-418.337172
Nuclear repulsion energy404.355434
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' 3851 3625 79.73      
2 A' 3288 3095 3.28      
3 A' 3282 3090 5.89      
4 A' 3267 3076 19.18      
5 A' 3257 3066 13.48      
6 A' 3244 3054 0.43      
7 A' 1848 1739 275.98      
8 A' 1704 1604 12.43      
9 A' 1682 1583 4.90      
10 A' 1572 1480 3.73      
11 A' 1523 1433 17.27      
12 A' 1428 1344 129.55      
13 A' 1377 1297 4.43      
14 A' 1332 1254 3.12      
15 A' 1248 1174 156.22      
16 A' 1225 1153 66.44      
17 A' 1203 1132 1.80      
18 A' 1145 1078 55.12      
19 A' 1121 1056 45.03      
20 A' 1067 1005 9.42      
21 A' 1027 967 0.64      
22 A' 787 741 12.57      
23 A' 640 603 53.81      
24 A' 634 597 0.05      
25 A' 501 471 4.99      
26 A' 388 365 6.10      
27 A' 221 208 1.22      
28 A" 959 903 0.15      
29 A" 948 893 0.18      
30 A" 927 872 0.70      
31 A" 867 816 0.06      
32 A" 790 744 0.00      
33 A" 726 683 148.13      
34 A" 620 584 55.75      
35 A" 562 529 10.28      
36 A" 419 395 5.76      
37 A" 400 377 0.45      
38 A" 159 149 0.55      
39 A" 57 53 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 25645.7 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 24142.9 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
0.12883 0.04081 0.03099

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 0.219 0.000
C2 1.279 -0.351 0.000
C3 1.420 -1.738 0.000
C4 0.285 -2.555 0.000
C5 -0.990 -1.985 0.000
C6 -1.138 -0.597 0.000
C7 -0.097 1.706 0.000
O8 0.854 2.466 0.000
O9 -1.379 2.153 0.000
H10 2.142 0.301 0.000
H11 2.408 -2.180 0.000
H12 0.395 -3.632 0.000
H13 -1.867 -2.619 0.000
H14 -2.121 -0.149 0.000
H15 -1.317 3.119 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.40032.41782.78872.41631.40041.48992.40342.37502.14313.39913.87153.39752.15313.1848
C21.40031.39372.41722.79592.42912.47472.84873.65161.08152.14923.39773.87833.40614.3336
C32.41781.39371.39802.42262.80033.76294.24134.79272.16261.08242.15363.40323.88105.5747
C42.78872.41721.39801.39722.42024.27795.05264.99333.40592.15501.08282.15383.40275.8958
C52.41632.79592.42261.39721.39533.79744.81764.15603.87723.40342.15251.08242.15595.1143
C61.40042.42912.80032.42021.39532.52773.65392.76083.40013.88273.40002.14931.08073.7207
C71.48992.47473.76294.27793.79742.52771.21731.35782.64284.62325.36074.67352.74621.8669
O82.40342.84874.24135.05264.81763.65391.21732.25512.51864.89866.11505.76743.96162.2674
O92.37503.65164.79274.99334.15602.76081.35782.25513.97795.75446.05104.79692.41910.9681
H102.14311.08152.16263.40593.87723.40012.64282.51863.97792.49524.30324.95964.28664.4613
H113.39912.14921.08242.15503.40343.88274.62324.89865.75442.49522.48154.29754.96346.4771
H123.87153.39772.15361.08282.15253.40005.36076.11506.05104.30322.48152.47914.29676.9649
H133.39753.87833.40322.15381.08242.14934.67355.76744.79694.95964.29752.47912.48265.7645
H142.15313.40613.88103.40272.15591.08072.74623.96162.41914.28664.96344.29672.48263.3661
H153.18484.33365.57475.89585.11433.72071.86692.26740.96814.46136.47716.96495.76453.3661

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 119.846 C1 C2 H10 118.879
C1 C6 C5 119.597 C1 C6 H14 119.850
C1 C7 O8 124.894 C1 C7 O9 112.938
C2 C1 C6 120.292 C2 C1 C7 117.762
C2 C3 C4 119.961 C2 C3 H11 119.927
C3 C2 H10 121.276 C3 C4 C5 120.158
C3 C4 H12 119.942 C4 C3 H11 120.112
C4 C5 C6 120.147 C4 C5 H13 120.056
C5 C4 H12 119.900 C5 C6 H14 120.553
C6 C1 C7 121.946 C6 C5 H13 119.797
C7 O9 H15 105.542 O8 C7 O9 122.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability