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 C6H5CH3 (toluene)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-268.905971
Energy at 298.15K-268.913909
HF Energy-268.235178
Nuclear repulsion energy266.663589
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 QCISD/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' 3170 3047 13.65      
2 A' 3145 3023 6.48      
3 A' 3130 3008 7.12      
4 A' 3077 2958 19.78      
5 A' 3022 2904 20.07      
6 A' 1618 1555 3.56      
7 A' 1568 1507 5.67      
8 A' 1541 1481 10.69      
9 A' 1473 1416 3.16      
10 A' 1241 1193 0.25      
11 A' 1217 1170 0.11      
12 A' 1108 1064 6.58      
13 A' 1055 1014 1.31      
14 A' 1021 981 0.25      
15 A' 939 903 0.00      
16 A' 885 850 0.27      
17 A' 791 760 0.40      
18 A' 727 699 74.06      
19 A' 678 651 3.43      
20 A' 534 514 0.60      
21 A' 464 446 8.62      
22 A' 207 199 2.59      
23 A" 3155 3032 32.77      
24 A" 3131 3009 4.99      
25 A" 3090 2969 13.99      
26 A" 1603 1540 0.07      
27 A" 1571 1510 9.80      
28 A" 1495 1436 4.17      
29 A" 1394 1340 0.25      
30 A" 1261 1212 0.07      
31 A" 1183 1137 0.02      
32 A" 1118 1074 3.74      
33 A" 1019 979 0.02      
34 A" 938 902 0.00      
35 A" 846 813 0.02      
36 A" 656 630 0.08      
37 A" 410 394 0.00      
38 A" 346 332 0.31      
39 A" 25 24 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 27924.1 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 26837.9 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 QCISD/3-21G*
ABC
0.18157 0.08243 0.05731

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 0.916 0.000
C2 0.006 0.197 1.213
C3 0.006 -1.210 1.216
C4 0.005 -1.919 0.000
C5 0.006 -1.210 -1.216
C6 0.006 0.197 -1.213
C7 -0.026 2.449 0.000
H8 0.011 0.741 2.160
H9 0.009 -1.751 2.163
H10 0.008 -3.008 0.000
H11 0.009 -1.751 -2.163
H12 0.011 0.741 -2.160
H13 -1.064 2.816 0.000
H14 0.480 2.847 0.891
H15 0.480 2.847 -0.891

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 H8 H9 H10 H11 H12 H13 H14 H15
C11.41022.44932.83452.44931.41021.53362.16663.43363.92443.43362.16662.18132.17872.1787
C21.41021.40702.43842.80712.42612.55851.09172.16693.42713.89743.41623.07852.71143.4171
C32.44931.40701.40732.43202.80713.85622.16721.09032.17083.42173.89884.33984.09764.5963
C42.83452.43841.40731.40732.43844.36783.42572.16911.08992.16913.42574.85384.87134.8713
C52.44932.80712.43201.40731.40703.85623.89883.42172.17081.09032.16724.33984.59634.0976
C61.41022.42612.80712.43841.40702.55853.41623.89743.42712.16691.09173.07853.41712.7114
C71.53362.55853.85624.36783.85622.55852.75374.72445.45774.72442.75371.10081.09971.0997
H82.16661.09172.16723.42573.89883.41622.75372.49194.32674.98904.31903.18202.50283.7368
H93.43362.16691.09032.16913.42173.89744.72442.49192.50164.32534.98905.16584.79375.5398
H103.92443.42712.17081.08992.17083.42715.45774.32672.50162.50164.32675.92215.94165.9416
H113.43363.89743.42172.16911.09032.16694.72444.98904.32532.50162.49195.16585.53984.7937
H122.16663.41623.89883.42572.16721.09172.75374.31904.98904.32672.49193.18203.73682.5028
H132.18133.07854.33984.85384.33983.07851.10083.18205.16585.92215.16583.18201.78351.7835
H142.17872.71144.09764.87134.59633.41711.09972.50284.79375.94165.53983.73681.78351.7826
H152.17873.41714.59634.87134.09762.71141.09973.73685.53985.94164.79372.50281.78351.7826

picture of toluene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.781 C1 C2 H8 119.445
C1 C6 C5 120.781 C1 C6 H12 119.445
C1 C7 H13 110.716 C1 C7 H14 110.581
C1 C7 H15 110.581 C2 C1 C6 118.677
C2 C1 C7 120.652 C2 C3 C4 120.102
C2 C3 H9 119.859 C3 C2 H8 119.773
C3 C4 C5 119.557 C3 C4 H10 120.221
C4 C3 H9 120.039 C4 C5 C6 120.102
C4 C5 H11 120.039 C5 C4 H10 120.221
C5 C6 H12 119.773 C6 C1 C7 120.652
C6 C5 H11 119.859 H13 C7 H14 108.290
H13 C7 H15 108.290 H14 C7 H15 108.297
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability