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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-413.494101
Energy at 298.15K-413.500548
HF Energy-412.970301
Nuclear repulsion energy394.995697
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/STO-3G
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' 3852 3358 21.55      
2 A' 3530 3078 1.16      
3 A' 3523 3072 7.74      
4 A' 3517 3066 3.60      
5 A' 3509 3060 0.68      
6 A' 3504 3055 1.33      
7 A' 1827 1593 35.58      
8 A' 1741 1518 2.41      
9 A' 1720 1500 2.28      
10 A' 1631 1422 2.11      
11 A' 1579 1377 15.70      
12 A' 1536 1339 55.55      
13 A' 1426 1244 6.72      
14 A' 1327 1157 115.45      
15 A' 1300 1134 3.31      
16 A' 1261 1100 7.60      
17 A' 1218 1062 0.28      
18 A' 1167 1018 41.30      
19 A' 1146 999 19.43      
20 A' 1101 960 2.08      
21 A' 1066 929 1.02      
22 A' 790 689 5.99      
23 A' 657 573 0.01      
24 A' 608 530 37.20      
25 A' 481 420 2.76      
26 A' 362 316 5.03      
27 A' 178 155 0.24      
28 A" 1078 940 0.05      
29 A" 1064 928 0.00      
30 A" 1003 875 0.72      
31 A" 936 816 0.00      
32 A" 827 721 6.63      
33 A" 760 663 6.41      
34 A" 669 584 32.31      
35 A" 604 527 50.98      
36 A" 445 388 1.95      
37 A" 436 380 0.17      
38 A" 163 142 0.30      
39 A" 54 47 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 26797.1 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 23364.4 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/STO-3G
ABC
0.12351 0.03879 0.02952

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.214 0.000
C2 1.331 -0.286 0.000
C3 1.566 -1.680 0.000
C4 0.473 -2.583 0.000
C5 -0.854 -2.088 0.000
C6 -1.094 -0.693 0.000
C7 -0.215 1.739 0.000
O8 0.685 2.622 0.000
O9 -1.595 2.073 0.000
H10 2.169 0.429 0.000
H11 2.598 -2.065 0.000
H12 0.656 -3.669 0.000
H13 -1.703 -2.790 0.000
H14 -2.123 -0.301 0.000
H15 -1.554 3.091 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.42122.45772.83682.45511.42091.54062.50362.44982.17993.45563.93783.45282.18483.2702
C21.42121.41452.45222.83222.45862.54752.97853.75811.10192.18433.44983.93353.45374.4412
C32.45771.41451.41742.45432.83763.85584.39174.90732.19391.10132.18683.45203.93855.7011
C42.83682.45221.41741.41702.45584.37705.20955.09523.45672.18721.10102.18603.45666.0257
C52.45512.83222.45431.41701.41563.88024.95504.22653.93403.45252.18651.10132.19125.2261
C61.42092.45862.83762.45581.41562.58603.76202.81093.45083.93893.45262.18371.10093.8118
C71.54062.54753.85584.37703.88022.58601.26081.41962.72094.73125.47794.76722.79381.9026
O82.50362.97854.39175.20954.95503.76201.26082.34512.64825.06206.29095.91524.05372.2876
O92.44983.75814.90735.09524.22652.81091.41962.34514.10785.89106.16764.86432.43281.0188
H102.17991.10192.19393.45673.93403.45082.72092.64824.10782.53004.36835.03534.35424.5772
H113.45562.18431.10132.18723.45253.93894.73125.06205.89102.53002.51914.36175.03986.6198
H123.93783.44982.18681.10102.18653.45265.47796.29096.16764.36832.51912.51734.36627.1122
H133.45283.93353.45202.18601.10132.18374.76725.91524.86435.03534.36172.51732.52365.8829
H142.18483.45373.93853.45662.19121.10092.79384.05372.43284.35425.03984.36622.52363.4401
H153.27024.44125.70116.02575.22613.81181.90262.28761.01884.57726.61987.11225.88293.4401

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 120.161 C1 C2 H10 118.993
C1 C6 C5 119.889 C1 C6 H14 119.540
C1 C7 O8 126.404 C1 C7 O9 111.636
C2 C1 C6 119.778 C2 C1 C7 118.610
C2 C3 C4 119.983 C2 C3 H11 119.997
C3 C2 H10 120.846 C3 C4 C5 119.974
C3 C4 H12 120.016 C4 C3 H11 120.020
C4 C5 C6 120.216 C4 C5 H13 119.941
C5 C4 H12 120.011 C5 C6 H14 120.571
C6 C1 C7 121.613 C6 C5 H13 119.843
C7 O9 H15 101.297 O8 C7 O9 121.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability