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All results from a given calculation for C6H6 (Benzvalene)

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-231.511341
Energy at 298.15K-231.517806
HF Energy-230.637690
Nuclear repulsion energy214.373845
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3284 3137 2.41      
2 A1 3279 3132 11.30      
3 A1 3229 3085 2.31      
4 A1 1630 1557 5.61      
5 A1 1433 1369 0.54      
6 A1 1213 1159 2.46      
7 A1 1132 1082 1.71      
8 A1 1004 959 0.20      
9 A1 926 885 0.24      
10 A1 784 749 2.85      
11 A1 704 672 4.79      
12 A2 1147 1096 0.00      
13 A2 916 875 0.00      
14 A2 894 854 0.00      
15 A2 803 767 0.00      
16 A2 545 520 0.00      
17 B1 3262 3116 7.95      
18 B1 1149 1098 23.50      
19 B1 1019 973 0.07      
20 B1 770 735 93.70      
21 B1 639 610 2.78      
22 B1 517 494 15.00      
23 B2 3257 3112 6.63      
24 B2 3229 3085 23.22      
25 B2 1366 1305 5.41      
26 B2 1299 1241 2.08      
27 B2 1244 1189 1.35      
28 B2 1006 961 0.09      
29 B2 872 833 4.48      
30 B2 835 797 8.21      

Unscaled Zero Point Vibrational Energy (zpe) 21693.9 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 20724.2 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/TZVP
ABC
0.24809 0.17605 0.13004

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.725 0.000 -1.007
C2 -0.725 0.000 -1.007
C3 0.000 1.072 -0.206
C4 0.000 -1.072 -0.206
C5 0.000 0.669 1.252
C6 0.000 -0.669 1.252
H7 1.479 0.000 -1.778
H8 -1.479 0.000 -1.778
H9 0.000 2.100 -0.545
H10 0.000 -2.100 -0.545
H11 0.000 1.348 2.091
H12 0.000 -1.348 2.091

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45061.52241.52242.46472.46471.07782.33492.26932.26933.45563.4556
C21.45061.52241.52242.46472.46472.33491.07782.26932.26933.45563.4556
C31.52241.52242.14501.51232.27142.40972.40971.08213.19062.31363.3372
C41.52241.52242.14502.27141.51232.40972.40973.19061.08213.33722.3136
C52.46472.46471.51232.27141.33903.43663.43662.29663.30131.07962.1855
C62.46472.46472.27141.51231.33903.43663.43663.30132.29662.18551.0796
H71.07782.33492.40972.40973.43663.43662.95762.84882.84884.35554.3555
H82.33491.07782.40972.40973.43663.43662.95762.84882.84884.35554.3555
H92.26932.26931.08213.19062.29663.30132.84882.84884.20012.74124.3406
H102.26932.26933.19061.08213.30132.29662.84882.84884.20014.34062.7412
H113.45563.45562.31363.33721.07962.18554.35554.35552.74124.34062.6966
H123.45563.45563.33722.31362.18551.07964.35554.35554.34062.74122.6966

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.547 C1 C2 C4 61.547
C1 C2 H8 134.354 C1 C3 C2 56.906
C1 C3 C5 108.619 C1 C3 H9 120.278
C1 C4 C2 56.906 C1 C4 C6 108.619
C1 C4 H10 120.278 C2 C1 C3 61.547
C2 C1 C4 61.547 C2 C1 H7 134.354
C2 C3 C5 108.619 C2 C3 H9 120.278
C2 C4 C6 108.619 C2 C4 H10 120.278
C3 C1 C4 89.576 C3 C1 H7 135.170
C3 C2 C4 89.576 C3 C2 H8 135.170
C3 C5 C6 105.455 C3 C5 H11 125.587
C4 C1 H7 135.170 C4 C2 H8 135.170
C4 C6 C5 105.455 C4 C6 H12 125.587
C5 C3 H9 123.715 C5 C6 H12 128.958
C6 C4 H10 123.715 C6 C5 H11 128.958
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability