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 C6H6 (Benzvalene)

using model chemistry: MP2=FULL/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-311G*
 hartrees
Energy at 0K-231.529967
Energy at 298.15K-231.536306
HF Energy-230.607713
Nuclear repulsion energy214.146494
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=FULL/6-311G*
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 3278 3105 7.04      
2 A1 3262 3089 7.36      
3 A1 3227 3056 1.38      
4 A1 1590 1506 2.04      
5 A1 1416 1341 0.04      
6 A1 1203 1140 2.73      
7 A1 1117 1058 3.85      
8 A1 1005 952 0.36      
9 A1 918 869 0.08      
10 A1 769 728 2.43      
11 A1 650 616 9.24      
12 A2 1123 1064 0.00      
13 A2 904 856 0.00      
14 A2 830 786 0.00      
15 A2 789 747 0.00      
16 A2 544 515 0.00      
17 B1 3244 3072 8.27      
18 B1 1123 1063 31.26      
19 B1 982 930 0.33      
20 B1 762 721 103.68      
21 B1 605 573 1.69      
22 B1 513 485 17.66      
23 B2 3254 3082 5.26      
24 B2 3227 3057 19.11      
25 B2 1354 1282 6.35      
26 B2 1280 1212 4.71      
27 B2 1232 1167 1.67      
28 B2 1009 956 0.15      
29 B2 875 829 7.90      
30 B2 831 787 6.94      

Unscaled Zero Point Vibrational Energy (zpe) 21456.7 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 20321.7 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=FULL/6-311G*
ABC
0.24673 0.17639 0.13009

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.730 0.000 -1.003
C2 -0.730 0.000 -1.003
C3 0.000 1.074 -0.203
C4 0.000 -1.074 -0.203
C5 0.000 0.674 1.248
C6 0.000 -0.674 1.248
H7 1.472 0.000 -1.792
H8 -1.472 0.000 -1.792
H9 0.000 2.103 -0.548
H10 0.000 -2.103 -0.548
H11 0.000 1.352 2.092
H12 0.000 -1.352 2.092

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.46011.52541.52542.46072.46071.08252.33882.27222.27223.45593.4559
C21.46011.52541.52542.46072.46072.33881.08252.27222.27223.45593.4559
C31.52541.52542.14731.50462.27122.41752.41751.08563.19532.31183.3392
C41.52541.52542.14732.27121.50462.41752.41753.19531.08563.33922.3118
C52.46072.46071.50462.27121.34813.44383.44382.29493.30701.08282.1948
C62.46072.46072.27121.50461.34813.44383.44383.30702.29492.19481.0828
H71.08252.33882.41752.41753.44383.44382.94382.85242.85244.36804.3680
H82.33881.08252.41752.41753.44383.44382.94382.85242.85244.36804.3680
H92.27222.27221.08563.19532.29493.30702.85242.85244.20592.74504.3481
H102.27222.27223.19531.08563.30702.29492.85242.85244.20594.34812.7450
H113.45593.45592.31183.33921.08282.19484.36804.36802.74504.34812.7036
H123.45593.45593.33922.31182.19481.08284.36804.36804.34812.74502.7036

picture of Benzvalene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 61.406 C1 C2 C4 61.406
C1 C2 H8 133.256 C1 C3 C2 57.189
C1 C3 C5 108.607 C1 C3 H9 120.031
C1 C4 C2 57.189 C1 C4 C6 108.607
C1 C4 H10 120.031 C2 C1 C3 61.406
C2 C1 C4 61.406 C2 C1 H7 133.256
C2 C3 C5 108.607 C2 C3 H9 120.031
C2 C4 C6 108.607 C2 C4 H10 120.031
C3 C1 C4 89.477 C3 C1 H7 135.254
C3 C2 C4 89.477 C3 C2 H8 135.254
C3 C5 C6 105.402 C3 C5 H11 125.850
C4 C1 H7 135.254 C4 C2 H8 135.254
C4 C6 C5 105.402 C4 C6 H12 125.850
C5 C3 H9 123.941 C5 C6 H12 128.748
C6 C4 H10 123.941 C6 C5 H11 128.748
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability