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

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-419.847803
Energy at 298.15K-419.854874
HF Energy-418.365186
Nuclear repulsion energy405.599299
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 MP2/6-31G(2df,p)
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' 3794 3583 101.65      
2 A' 3268 3086 1.40      
3 A' 3260 3079 3.90      
4 A' 3251 3070 4.70      
5 A' 3242 3062 5.99      
6 A' 3230 3051 0.11      
7 A' 1832 1731 231.12      
8 A' 1649 1558 8.40      
9 A' 1632 1541 4.48      
10 A' 1527 1442 5.11      
11 A' 1481 1399 18.42      
12 A' 1471 1389 1.62      
13 A' 1407 1329 138.50      
14 A' 1337 1263 5.16      
15 A' 1226 1158 136.66      
16 A' 1200 1134 63.32      
17 A' 1190 1124 1.03      
18 A' 1127 1065 65.51      
19 A' 1100 1039 44.94      
20 A' 1050 992 10.59      
21 A' 1008 952 1.38      
22 A' 777 733 14.61      
23 A' 632 597 48.43      
24 A' 616 582 0.14      
25 A' 497 469 5.23      
26 A' 383 361 4.77      
27 A' 216 204 1.30      
28 A" 984 930 0.20      
29 A" 964 910 0.16      
30 A" 942 889 1.05      
31 A" 873 825 0.08      
32 A" 825 780 0.01      
33 A" 735 694 119.91      
34 A" 686 648 5.55      
35 A" 613 579 54.04      
36 A" 431 407 6.65      
37 A" 408 385 0.43      
38 A" 160 151 0.64      
39 A" 63 59 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 25542.3 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 24124.7 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 MP2/6-31G(2df,p)
ABC
0.12934 0.04116 0.03123

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.221 0.000
C2 1.273 -0.355 0.000
C3 1.404 -1.739 0.000
C4 0.267 -2.549 0.000
C5 -1.002 -1.970 0.000
C6 -1.141 -0.585 0.000
C7 -0.083 1.703 0.000
O8 0.870 2.450 0.000
O9 -1.360 2.147 0.000
H10 2.137 0.298 0.000
H11 2.390 -2.189 0.000
H12 0.370 -3.628 0.000
H13 -1.884 -2.600 0.000
H14 -2.122 -0.127 0.000
H15 -1.286 3.112 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.39752.41182.78322.41001.39761.48372.39242.35732.13883.39473.86733.39262.15053.1638
C21.39751.39082.41362.79022.42552.46422.83403.63191.08332.14763.39543.87403.40284.3091
C32.41181.39081.39552.41702.79523.74974.22374.76912.16551.08382.15303.39903.87745.5475
C42.78322.41361.39551.39482.41704.26625.03534.96993.40632.15331.08402.15213.40225.8704
C52.41002.79022.41701.39481.39253.78664.80054.13313.87323.39922.15181.08382.15715.0906
C61.39762.42552.79522.41701.39252.52103.64102.74093.39583.87903.39792.14741.08223.7001
C71.48372.46423.74974.26623.78662.52101.21041.35212.62714.61105.35014.66472.74011.8531
O82.39242.83404.22375.03534.80053.64101.21042.24972.49784.88206.09875.75213.94872.2547
O92.35733.63194.76914.96994.13312.74091.35212.24973.95575.73266.02874.77592.39860.9680
H102.13881.08332.16553.40633.87323.39582.62712.49783.95572.49994.30564.95694.28074.4314
H113.39472.14761.08382.15333.39923.87904.61104.88205.73262.49992.48034.29424.96126.4510
H123.86733.39542.15301.08402.15183.39795.35016.09876.02874.30562.48032.47784.29756.9408
H133.39263.87403.39902.15211.08382.14744.66475.75214.77594.95694.29422.47782.48425.7434
H142.15053.40283.87743.40222.15711.08222.74013.94872.39864.28074.96124.29752.48423.3456
H153.16384.30915.54755.87045.09063.70011.85312.25470.96804.43146.45106.94085.74343.3456

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 119.764 C1 C2 H10 118.574
C1 C6 C5 119.485 C1 C6 H14 119.725
C1 C7 O8 124.938 C1 C7 O9 112.374
C2 C1 C6 120.402 C2 C1 C7 117.546
C2 C3 C4 120.044 C2 C3 H11 119.908
C3 C2 H10 121.662 C3 C4 C5 120.045
C3 C4 H12 120.005 C4 C3 H11 120.048
C4 C5 C6 120.259 C4 C5 H13 119.993
C5 C4 H12 119.950 C5 C6 H14 120.790
C6 C1 C7 122.051 C6 C5 H13 119.747
C7 O9 H15 104.807 O8 C7 O9 122.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability