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: HF/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 HF/3-21G*
 hartrees
Energy at 0K-415.990399
Energy at 298.15K-415.998171
Nuclear repulsion energy407.977645
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 HF/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' 3890 3511 109.37      
2 A' 3417 3084 1.05      
3 A' 3398 3067 4.43      
4 A' 3383 3053 12.83      
5 A' 3372 3044 11.91      
6 A' 3357 3030 0.88      
7 A' 1942 1753 331.94      
8 A' 1779 1606 17.52      
9 A' 1754 1583 6.41      
10 A' 1669 1506 5.67      
11 A' 1624 1466 23.45      
12 A' 1505 1358 148.23      
13 A' 1497 1351 2.72      
14 A' 1367 1234 2.93      
15 A' 1328 1198 2.96      
16 A' 1289 1164 179.69      
17 A' 1260 1138 9.19      
18 A' 1206 1088 80.18      
19 A' 1172 1058 151.05      
20 A' 1142 1031 4.78      
21 A' 1104 996 5.89      
22 A' 838 756 7.07      
23 A' 711 641 0.59      
24 A' 696 628 68.75      
25 A' 542 489 5.55      
26 A' 420 379 10.30      
27 A' 237 214 1.23      
28 A" 1204 1087 0.00      
29 A" 1179 1064 0.01      
30 A" 1132 1022 2.02      
31 A" 1004 906 0.00      
32 A" 940 848 0.07      
33 A" 821 741 223.93      
34 A" 798 720 1.15      
35 A" 612 553 134.60      
36 A" 488 441 23.94      
37 A" 477 431 2.60      
38 A" 184 166 1.37      
39 A" 100 90 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 27417.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 24746.8 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 HF/3-21G*
ABC
0.13080 0.04166 0.03160

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.215 0.000
C2 1.279 -0.316 0.000
C3 1.454 -1.686 0.000
C4 0.347 -2.520 0.000
C5 -0.931 -1.986 0.000
C6 -1.108 -0.615 0.000
C7 -0.132 1.682 0.000
O8 0.783 2.467 0.000
O9 -1.425 2.090 0.000
H10 2.116 0.351 0.000
H11 2.441 -2.101 0.000
H12 0.481 -3.583 0.000
H13 -1.784 -2.635 0.000
H14 -2.086 -0.185 0.000
H15 -1.494 3.055 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.38512.39312.75682.39021.38441.47242.38462.35502.12033.36533.82883.36242.12433.2092
C21.38511.38042.39232.77012.40532.44592.82763.61961.07072.12993.36313.84153.36784.3656
C32.39311.38041.38582.40392.77603.72194.20694.74802.14201.07132.13263.37393.84495.5828
C42.75682.39231.38581.38512.39644.22855.00624.93883.37232.13551.07202.13393.37215.8713
C52.39022.77012.40391.38511.38223.75404.77234.10643.84053.37442.13181.07142.13965.0730
C61.38442.40532.77602.39641.38222.49563.61652.72433.36543.84733.36632.12991.06903.6911
C71.47242.44593.72194.22853.75402.49561.20611.35582.61194.57495.30054.62202.70271.9346
O82.38462.82764.20695.00624.77233.61651.20612.23962.50084.86026.05845.71193.90772.3518
O92.35503.61964.74804.93884.10642.72431.35582.23963.94455.70205.98524.73922.36990.9675
H102.12031.07072.14203.37233.84053.36542.61192.50083.94452.47414.26104.91194.23634.5103
H113.36532.12991.07132.13553.37443.84734.57494.86025.70202.47412.45774.25854.91626.4866
H123.82883.36312.13261.07202.13183.36635.30056.05845.98524.26102.45772.45504.25886.9263
H133.36243.84153.37392.13391.07142.12994.62205.71194.73924.91194.25852.45502.46855.6980
H142.12433.36783.84493.37212.13961.06902.70273.90772.36994.23634.91624.25882.46853.2943
H153.20924.36565.58285.87135.07303.69111.93462.35180.96754.51036.48666.92635.69803.2943

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 119.840 C1 C2 H10 118.847
C1 C6 C5 119.532 C1 C6 H14 119.407
C1 C7 O8 125.521 C1 C7 O9 112.687
C2 C1 C6 120.571 C2 C1 C7 117.702
C2 C3 C4 119.728 C2 C3 H11 120.095
C3 C2 H10 121.314 C3 C4 C5 120.346
C3 C4 H12 119.837 C4 C3 H11 120.177
C4 C5 C6 119.984 C4 C5 H13 120.071
C5 C4 H12 119.818 C5 C6 H14 121.061
C6 C1 C7 121.727 C6 C5 H13 119.944
C7 O9 H15 111.665 O8 C7 O9 121.792
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.260      
2 C -0.178      
3 C -0.244      
4 C -0.220      
5 C -0.243      
6 C -0.189      
7 C 0.953      
8 O -0.623      
9 O -0.731      
10 H 0.285      
11 H 0.249      
12 H 0.251      
13 H 0.248      
14 H 0.285      
15 H 0.418      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.201 -1.602 0.000 2.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -48.589 -6.745 0.000
y -6.745 -45.346 0.000
z 0.000 0.000 -55.402
Traceless
 xyz
x 1.785 -6.745 0.000
y -6.745 6.649 0.000
z 0.000 0.000 -8.434
Polar
3z2-r2-16.868
x2-y2-3.243
xy-6.745
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.114 -0.099 0.000
y -0.099 13.336 0.000
z 0.000 0.000 2.719


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000