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 (Trimethylenecycopropane)

using model chemistry: B2PLYP=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at B2PLYP=FULL/STO-3G
 hartrees
Energy at 0K-228.852710
Energy at 298.15K-228.857009
HF Energy-228.724989
Nuclear repulsion energy187.139437
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 B2PLYP=FULL/STO-3G
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' 3423 3423 0.00      
2 A1' 2045 2045 0.00      
3 A1' 1614 1614 0.00      
4 A1' 828 828 0.00      
5 A1" 823 823 0.00      
6 A2' 3573 3573 0.00      
7 A2' 1180 1180 0.00      
8 A2' 533 533 0.00      
9 A2" 950 950 58.47      
10 A2" 213 213 1.51      
11 E' 3573 3573 0.67      
11 E' 3573 3573 0.67      
12 E' 3421 3421 48.74      
12 E' 3421 3421 48.74      
13 E' 1810 1810 34.11      
13 E' 1810 1810 34.11      
14 E' 1577 1577 3.83      
14 E' 1577 1577 3.83      
15 E' 1224 1224 5.12      
15 E' 1224 1224 5.12      
16 E' 871 871 1.35      
16 E' 871 871 1.35      
17 E' 234 234 0.00      
17 E' 234 234 0.00      
18 E" 944 944 0.00      
18 E" 944 944 0.00      
19 E" 825 825 0.00      
19 E" 825 825 0.00      
20 E" 370 370 0.00      
20 E" 370 370 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 22438.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 22438.2 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 B2PLYP=FULL/STO-3G
ABC
0.13483 0.13483 0.06741

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.849 0.000
C2 0.736 -0.425 0.000
C3 -0.736 -0.425 0.000
C4 0.000 2.190 0.000
C5 1.896 -1.095 0.000
C6 -1.896 -1.095 0.000
H7 -0.935 2.764 0.000
H8 0.935 2.764 0.000
H9 2.861 -0.572 0.000
H10 1.926 -2.192 0.000
H11 -1.926 -2.192 0.000
H12 -2.861 -0.572 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.47131.47131.34022.71592.71592.13052.13053.19493.59983.59983.1949
C21.47131.47132.71591.34022.71593.59983.19492.13052.13053.19493.5998
C31.47131.47132.71592.71591.34023.19493.59983.59983.19492.13052.1305
C41.34022.71592.71593.79263.79261.09721.09723.97684.78604.78603.9768
C52.71591.34022.71593.79263.79264.78603.97681.09721.09723.97684.7860
C62.71592.71591.34023.79263.79263.97684.78604.78603.97681.09721.0972
H72.13053.59983.19491.09724.78603.97681.86975.05375.72225.05373.8525
H82.13053.19493.59981.09723.97684.78601.86973.85255.05375.72225.0537
H93.19492.13053.59983.97681.09724.78605.05373.85251.86975.05375.7222
H103.59982.13053.19494.78601.09723.97685.72225.05371.86973.85255.0537
H113.59983.19492.13054.78603.97681.09725.05375.72225.05373.85251.8697
H123.19493.59982.13053.97684.78601.09723.85255.05375.72225.05371.8697

picture of Trimethylenecycopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 60.000 C1 C2 C5 150.000
C1 C3 C2 60.000 C1 C3 C6 150.000
C1 C4 H7 121.564 C1 C4 H8 121.564
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.564
C2 C5 H10 121.564 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.564
C3 C6 H12 121.564 H7 C4 H8 116.873
H9 C5 H10 116.873 H11 C6 H12 116.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability