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 C6H8 (Bicyclo[2.2.0]hex-1(4)-ene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-233.291266
Energy at 298.15K-233.299593
Nuclear repulsion energy220.213961
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3069 2941 0.00      
2 Ag 1769 1695 0.00      
3 Ag 1468 1407 0.00      
4 Ag 1196 1146 0.00      
5 Ag 899 861 0.00      
6 Ag 692 663 0.00      
7 Au 3112 2982 0.00      
8 Au 1141 1094 0.00      
9 Au 985 944 0.00      
10 Au 214 205 0.00      
11 B1g 3060 2932 0.00      
12 B1g 1448 1388 0.00      
13 B1g 1304 1249 0.00      
14 B1g 1144 1097 0.00      
15 B1g 806 773 0.00      
16 B1u 3125 2995 99.35      
17 B1u 1079 1034 3.15      
18 B1u 810 776 0.03      
19 B1u 71 68 14.93      
20 B2g 3127 2996 0.00      
21 B2g 1045 1001 0.00      
22 B2g 735 704 0.00      
23 B2u 3062 2934 104.97      
24 B2u 1452 1392 0.85      
25 B2u 1200 1150 16.67      
26 B2u 917 879 0.55      
27 B2u 409 392 7.77      
28 B3g 3113 2984 0.00      
29 B3g 1165 1116 0.00      
30 B3g 1042 999 0.00      
31 B3g 390 374 0.00      
32 B3u 3064 2936 185.96      
33 B3u 1469 1408 1.17      
34 B3u 1298 1244 1.16      
35 B3u 1189 1139 0.34      
36 B3u 845 810 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 26455.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 25352.7 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 mPW1PW91/aug-cc-pVDZ
ABC
0.28076 0.11347 0.08612

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.661 0.000
C2 0.000 -0.661 0.000
C3 1.519 -0.797 0.000
C4 1.519 0.797 0.000
C5 -1.519 0.797 0.000
C6 -1.519 -0.797 0.000
H7 -1.971 -1.251 0.893
H8 -1.971 -1.251 -0.893
H9 -1.971 1.251 0.893
H10 -1.971 1.251 -0.893
H11 1.971 -1.251 0.893
H12 1.971 -1.251 -0.893
H13 1.971 1.251 0.893
H14 1.971 1.251 -0.893

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.32172.10591.52551.52552.10592.88752.88752.24302.24302.88752.88752.24302.2430
C21.32171.52552.10592.10591.52552.24302.24302.88752.88752.24302.24302.88752.8875
C32.10591.52551.59483.43183.03883.63143.63144.14454.14451.09851.09852.27962.2796
C41.52552.10591.59483.03883.43184.14454.14453.63143.63142.27962.27961.09851.0985
C51.52552.10593.43183.03881.59482.27962.27961.09851.09854.14454.14453.63143.6314
C62.10591.52553.03883.43181.59481.09851.09852.27962.27963.63143.63144.14454.1445
H72.88752.24303.63144.14452.27961.09851.78532.50183.07353.94254.32794.66934.9990
H82.88752.24303.63144.14452.27961.09851.78533.07352.50184.32793.94254.99904.6693
H92.24302.88754.14453.63141.09852.27962.50183.07351.78534.66934.99903.94254.3279
H102.24302.88754.14453.63141.09852.27963.07352.50181.78534.99904.66934.32793.9425
H112.88752.24301.09852.27964.14453.63143.94254.32794.66934.99901.78532.50183.0735
H122.88752.24301.09852.27964.14453.63144.32793.94254.99904.66931.78533.07352.5018
H132.24302.88752.27961.09853.63144.14454.66934.99903.94254.32792.50183.07351.7853
H142.24302.88752.27961.09853.63144.14454.99904.66934.32793.94253.07352.50181.7853

picture of Bicyclo[2.2.0]hex-1(4)-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 95.136 C1 C2 C6 95.136
C1 C4 C3 84.864 C1 C4 H13 116.530
C1 C4 H14 116.530 C1 C5 C6 84.864
C1 C5 H9 116.530 C1 C5 H10 116.530
C2 C1 C4 95.136 C2 C1 C5 95.136
C2 C3 C4 84.864 C2 C3 H11 116.530
C2 C3 H12 116.530 C2 C6 C5 84.864
C2 C6 H7 116.530 C2 C6 H8 116.530
C3 C2 C6 169.729 C3 C4 H13 114.382
C3 C4 H14 114.382 C4 C1 C5 169.729
C4 C3 H11 114.382 C4 C3 H12 114.382
C5 C6 H7 114.382 C5 C6 H8 114.382
C6 C5 H9 114.382 C6 C5 H10 114.382
H7 C6 H8 108.706 H9 C5 H10 108.706
H11 C3 H12 108.706 H13 C4 H14 108.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.525      
2 C -0.525      
3 C 0.837      
4 C 0.837      
5 C 0.837      
6 C 0.837      
7 H -0.287      
8 H -0.287      
9 H -0.287      
10 H -0.287      
11 H -0.287      
12 H -0.287      
13 H -0.287      
14 H -0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.655 0.000 0.000
y 0.000 -37.462 0.000
z 0.000 0.000 -36.553
Traceless
 xyz
x 1.353 0.000 0.000
y 0.000 -1.358 0.000
z 0.000 0.000 0.005
Polar
3z2-r20.011
x2-y21.807
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.689 0.000 0.000
y 0.000 10.188 0.000
z 0.000 0.000 7.931


<r2> (average value of r2) Å2
<r2> 148.717
(<r2>)1/2 12.195