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

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-419.297605
Energy at 298.15K-419.304963
HF Energy-418.324817
Nuclear repulsion energy407.624455
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 CISD/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' 3927 3636 128.86      
2 A' 3369 3119 2.33      
3 A' 3365 3115 3.73      
4 A' 3347 3098 17.10      
5 A' 3337 3089 12.88      
6 A' 3323 3076 0.57      
7 A' 1961 1815 385.68      
8 A' 1780 1648 18.65      
9 A' 1757 1627 4.96      
10 A' 1635 1514 4.68      
11 A' 1583 1465 25.96      
12 A' 1490 1379 170.80      
13 A' 1431 1325 4.78      
14 A' 1368 1266 5.57      
15 A' 1306 1209 229.93      
16 A' 1275 1180 47.88      
17 A' 1243 1151 3.56      
18 A' 1203 1113 53.29      
19 A' 1169 1083 22.22      
20 A' 1112 1029 7.45      
21 A' 1071 991 0.61      
22 A' 824 763 16.33      
23 A' 674 624 61.91      
24 A' 661 612 0.06      
25 A' 524 485 5.04      
26 A' 404 374 6.28      
27 A' 230 213 1.52      
28 A" 1040 963 0.11      
29 A" 1032 956 0.08      
30 A" 1006 931 1.23      
31 A" 923 855 0.04      
32 A" 860 796 0.60      
33 A" 776 718 173.07      
34 A" 692 640 4.31      
35 A" 630 583 76.21      
36 A" 453 420 8.05      
37 A" 433 401 0.42      
38 A" 169 157 0.59      
39 A" 66 61 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 26722.2 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 24739.4 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 CISD/6-31G*
ABC
0.13129 0.04139 0.03147

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.217 0.000
C2 1.270 -0.348 0.000
C3 1.412 -1.723 0.000
C4 0.287 -2.535 0.000
C5 -0.980 -1.972 0.000
C6 -1.127 -0.595 0.000
C7 -0.100 1.695 0.000
O8 0.838 2.445 0.000
O9 -1.364 2.140 0.000
H10 2.129 0.301 0.000
H11 2.396 -2.163 0.000
H12 0.398 -3.608 0.000
H13 -1.853 -2.605 0.000
H14 -2.108 -0.152 0.000
H15 -1.319 3.102 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 O8 O9 H10 H11 H12 H13 H14 H15
C11.38962.39932.76652.39801.38961.48182.38082.35782.13103.37713.84543.37572.14053.1722
C21.38961.38262.39752.77442.40982.45982.82653.62301.07712.13613.37453.85283.38374.3128
C32.39931.38261.38712.40452.77833.73784.20794.75702.14761.07832.14013.38163.85485.5441
C42.76652.39751.38711.38632.40024.24775.01064.95783.38172.14221.07892.14093.37845.8609
C52.39802.77442.40451.38631.38423.77124.77664.12973.85143.38182.13901.07842.14115.0850
C61.38962.40982.77832.40021.38422.51073.62072.74583.37793.85663.37662.13631.07653.7024
C71.48182.45983.73784.24773.77122.51071.20091.34002.62954.59525.32664.64372.72901.8611
O82.38082.82654.20795.01064.77663.62071.20092.22292.50334.86446.06935.72233.92792.2543
O92.35783.62304.75704.95784.12972.74581.34002.22293.94795.71436.01204.77002.41020.9630
H102.13101.07712.14763.38173.85143.37792.62952.50333.94792.47804.27524.92974.26194.4423
H113.37712.13611.07832.14223.38183.85664.59524.86445.71432.47802.46644.27244.93316.4434
H123.84543.37452.14011.07892.13903.37665.32666.06936.01204.27522.46642.46434.26896.9260
H133.37573.85283.38162.14091.07842.13634.64375.72234.77004.92974.27242.46432.46585.7317
H142.14053.38373.85483.37842.14111.07652.72903.92792.41024.26194.93314.26892.46583.3487
H153.17224.31285.54415.86095.08503.70241.86112.25430.96304.44236.44346.92605.73173.3487

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 119.881 C1 C2 H10 118.976
C1 C6 C5 119.659 C1 C6 H14 119.912
C1 C7 O8 124.783 C1 C7 O9 113.253
C2 C1 C6 120.244 C2 C1 C7 117.849
C2 C3 C4 119.910 C2 C3 H11 119.946
C3 C2 H10 121.143 C3 C4 C5 120.229
C3 C4 H12 119.900 C4 C3 H11 120.144
C4 C5 C6 120.078 C4 C5 H13 120.093
C5 C4 H12 119.872 C5 C6 H14 120.430
C6 C1 C7 121.906 C6 C5 H13 119.829
C7 O9 H15 106.685 O8 C7 O9 121.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability