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All results from a given calculation for C6H6 (Benzvalene)

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

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/6-31G(2df,p)
 hartrees
Energy at 0K-231.550720
Energy at 298.15K-231.557217
HF Energy-230.595188
Nuclear repulsion energy214.320266
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/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 A1 3298 3124 4.70      
2 A1 3290 3117 4.44      
3 A1 3241 3070 1.64      
4 A1 1642 1555 2.40      
5 A1 1442 1366 0.46      
6 A1 1215 1151 1.51      
7 A1 1136 1077 1.24      
8 A1 1005 952 0.13      
9 A1 943 893 0.00      
10 A1 787 746 2.32      
11 A1 707 670 5.92      
12 A2 1147 1087 0.00      
13 A2 935 886 0.00      
14 A2 904 856 0.00      
15 A2 827 783 0.00      
16 A2 544 515 0.00      
17 B1 3272 3100 5.25      
18 B1 1158 1097 18.97      
19 B1 1025 971 0.21      
20 B1 791 749 78.79      
21 B1 667 632 0.68      
22 B1 522 494 8.59      
23 B2 3271 3099 3.54      
24 B2 3240 3070 19.28      
25 B2 1364 1293 5.25      
26 B2 1301 1233 3.50      
27 B2 1246 1180 0.95      
28 B2 1010 957 0.13      
29 B2 873 827 5.85      
30 B2 831 787 6.84      

Unscaled Zero Point Vibrational Energy (zpe) 21815.6 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 20668.1 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/6-31G(2df,p)
ABC
0.24804 0.17581 0.13002

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.726 0.000 -1.008
C2 -0.726 0.000 -1.008
C3 0.000 1.071 -0.206
C4 0.000 -1.071 -0.206
C5 0.000 0.669 1.252
C6 0.000 -0.669 1.252
H7 1.485 0.000 -1.774
H8 -1.485 0.000 -1.774
H9 0.000 2.100 -0.543
H10 0.000 -2.100 -0.543
H11 0.000 1.351 2.089
H12 0.000 -1.351 2.089

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45241.52281.52282.46682.46681.07792.33982.27032.27033.45623.4562
C21.45241.52281.52282.46682.46682.33981.07792.27032.27033.45623.4562
C31.52281.52282.14301.51292.27072.41062.41061.08263.18962.31203.3370
C41.52281.52282.14302.27071.51292.41062.41063.18961.08263.33702.3120
C52.46682.46681.51292.27071.33783.43673.43672.29633.30041.07942.1863
C62.46682.46682.27071.51291.33783.43673.43673.30042.29632.18631.0794
H71.07792.33982.41062.41063.43673.43672.96942.85122.85124.35354.3535
H82.33981.07792.41062.41063.43673.43672.96942.85122.85124.35354.3535
H92.27032.27031.08263.18962.29633.30042.85122.85124.20032.73704.3405
H102.27032.27033.18961.08263.30042.29632.85122.85124.20034.34052.7370
H113.45623.45622.31203.33701.07942.18634.35354.35352.73704.34052.7018
H123.45623.45623.33702.31202.18631.07944.35354.35354.34052.73702.7018

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.518 C1 C2 C4 61.518
C1 C2 H8 134.725 C1 C3 C2 56.965
C1 C3 C5 108.696 C1 C3 H9 120.293
C1 C4 C2 56.965 C1 C4 C6 108.696
C1 C4 H10 120.293 C2 C1 C3 61.518
C2 C1 C4 61.518 C2 C1 H7 134.725
C2 C3 C5 108.696 C2 C3 H9 120.293
C2 C4 C6 108.696 C2 C4 H10 120.293
C3 C1 C4 89.438 C3 C1 H7 135.223
C3 C2 C4 89.438 C3 C2 H8 135.223
C3 C5 C6 105.432 C3 C5 H11 125.384
C4 C1 H7 135.223 C4 C2 H8 135.223
C4 C6 C5 105.432 C4 C6 H12 125.384
C5 C3 H9 123.590 C5 C6 H12 129.184
C6 C4 H10 123.590 C6 C5 H11 129.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability