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: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-74.482308
Energy at 298.15K-74.489274
HF Energy-73.309815
Nuclear repulsion energy203.621589
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 MP2/CEP-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' 3723 3534 96.58      
2 A' 3247 3082 3.04      
3 A' 3238 3074 6.20      
4 A' 3224 3061 15.46      
5 A' 3209 3047 11.46      
6 A' 3192 3030 0.23      
7 A' 1803 1712 290.69      
8 A' 1667 1583 8.93      
9 A' 1649 1565 6.97      
10 A' 1527 1449 9.38      
11 A' 1496 1420 3.95      
12 A' 1478 1403 15.15      
13 A' 1394 1324 126.20      
14 A' 1336 1268 4.39      
15 A' 1237 1174 207.83      
16 A' 1200 1139 18.83      
17 A' 1181 1121 0.04      
18 A' 1118 1061 43.16      
19 A' 1096 1040 88.02      
20 A' 1045 992 20.44      
21 A' 1006 955 1.63      
22 A' 770 731 8.99      
23 A' 621 589 47.26      
24 A' 609 578 0.10      
25 A' 487 462 5.83      
26 A' 378 359 5.52      
27 A' 212 201 1.22      
28 A" 978 928 0.51      
29 A" 955 907 2.56      
30 A" 944 896 3.26      
31 A" 879 835 0.06      
32 A" 805 764 19.43      
33 A" 735 698 167.45      
34 A" 665 631 11.11      
35 A" 615 584 74.49      
36 A" 424 402 9.66      
37 A" 408 388 0.80      
38 A" 166 157 1.07      
39 A" 62 59 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 25385.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 24101.3 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 MP2/CEP-31G*
ABC
0.12469 0.03985 0.03020

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.225 0.000
C2 1.310 -0.333 0.000
C3 1.465 -1.742 0.000
C4 0.321 -2.587 0.000
C5 -0.983 -2.021 0.000
C6 -1.153 -0.612 0.000
C7 -0.118 1.724 0.000
O8 0.830 2.515 0.000
O9 -1.425 2.148 0.000
H10 2.175 0.337 0.000
H11 2.470 -2.180 0.000
H12 0.445 -3.676 0.000
H13 -1.863 -2.673 0.000
H14 -2.151 -0.168 0.000
H15 -1.371 3.130 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.42382.45282.83042.45131.42451.50322.43562.39392.17743.44693.92643.44552.18673.2125
C21.42381.41752.46142.84702.47832.50382.88793.69311.09382.18053.45333.94273.46494.3796
C32.45281.41751.42242.46412.85123.81014.30384.84672.19661.09562.18693.45613.94395.6376
C42.83042.46141.42241.42192.46424.33305.12725.04733.46202.18681.09602.18583.45875.9626
C52.45132.84702.46411.42191.41863.84274.88444.19243.94063.45642.18611.09572.18995.1656
C61.42452.47832.85122.46421.41862.55453.70262.77403.45993.94693.45532.18031.09273.7489
C71.50322.50383.81014.33303.84272.55451.23521.37452.67944.68305.42894.73052.77701.8837
O82.43562.88794.30385.12724.88443.70261.23522.28532.55924.97236.20295.84564.01092.2856
O92.39393.69314.84675.04734.19242.77401.37452.28534.03005.82266.11734.84172.42770.9835
H102.17741.09382.19663.46203.94063.45992.67942.55924.03002.53384.37015.03634.35514.5136
H113.44692.18051.09562.18683.45643.94694.68304.97235.82262.53382.51814.36075.03956.5532
H123.92643.45332.18691.09602.18613.45535.42896.20296.11734.37012.51812.51594.36387.0444
H133.44553.94273.45612.18581.09572.18034.73055.84564.84175.03634.36072.51592.52175.8247
H142.18673.46493.94393.45872.18991.09272.77704.01092.42774.35515.03954.36382.52173.3897
H153.21254.37965.63765.96265.16563.74891.88372.28560.98354.51366.55327.04445.82473.3897

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 119.366 C1 C2 H10 119.153
C1 C6 C5 119.128 C1 C6 H14 120.040
C1 C7 O8 125.327 C1 C7 O9 112.511
C2 C1 C6 120.933 C2 C1 C7 117.581
C2 C3 C4 120.161 C2 C3 H11 119.831
C3 C2 H10 121.481 C3 C4 C5 120.069
C3 C4 H12 119.986 C4 C3 H11 120.007
C4 C5 C6 120.343 C4 C5 H13 119.946
C5 C4 H12 119.945 C5 C6 H14 120.832
C6 C1 C7 121.486 C6 C5 H13 119.710
C7 O9 H15 104.819 O8 C7 O9 122.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability