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/6-311G**

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/6-311G**
 hartrees
Energy at 0K-231.913056
Energy at 298.15K-231.917515
HF Energy-231.636661
Nuclear repulsion energy189.282931
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/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' 3159 3159 0.00      
2 A1' 1881 1881 0.00      
3 A1' 1483 1483 0.00      
4 A1' 794 794 0.00      
5 A1" 749 749 0.00      
6 A2' 3250 3250 0.00      
7 A2' 1102 1102 0.00      
8 A2' 503 503 0.00      
9 A2" 887 887 121.93      
10 A2" 208 208 7.64      
11 E' 3250 3250 8.33      
11 E' 3250 3250 8.33      
12 E' 3159 3159 10.44      
12 E' 3159 3159 10.45      
13 E' 1675 1675 3.56      
13 E' 1675 1675 3.56      
14 E' 1449 1449 10.32      
14 E' 1449 1449 10.32      
15 E' 1131 1131 3.82      
15 E' 1131 1131 3.82      
16 E' 798 798 6.72      
16 E' 798 798 6.72      
17 E' 222 222 0.00      
17 E' 222 222 0.00      
18 E" 879 879 0.00      
18 E" 879 879 0.00      
19 E" 762 762 0.00      
19 E" 762 762 0.00      
20 E" 327 327 0.00      
20 E" 327 327 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20660.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20660.0 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/6-311G**
ABC
0.13789 0.13789 0.06895

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.834 0.000
C2 0.722 -0.417 0.000
C3 -0.722 -0.417 0.000
C4 0.000 2.168 0.000
C5 1.878 -1.084 0.000
C6 -1.878 -1.084 0.000
H7 -0.928 2.727 0.000
H8 0.928 2.727 0.000
H9 2.826 -0.560 0.000
H10 1.898 -2.167 0.000
H11 -1.898 -2.167 0.000
H12 -2.826 -0.560 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.44431.44431.33462.68442.68442.10882.10883.15113.55113.55113.1511
C21.44431.44432.68441.33462.68443.55113.15112.10882.10883.15113.5511
C31.44431.44432.68442.68441.33463.15113.55113.55113.15112.10882.1088
C41.33462.68442.68443.75593.75591.08341.08343.92834.73314.73313.9283
C52.68441.33462.68443.75593.75594.73313.92831.08341.08343.92834.7331
C62.68442.68441.33463.75593.75593.92834.73314.73313.92831.08341.0834
H72.10883.55113.15111.08344.73313.92831.85614.99005.65214.99003.7960
H82.10883.15113.55111.08343.92834.73311.85613.79604.99005.65214.9900
H93.15112.10883.55113.92831.08344.73314.99003.79601.85614.99005.6521
H103.55112.10883.15114.73311.08343.92835.65214.99001.85613.79604.9900
H113.55113.15112.10884.73313.92831.08344.99005.65214.99003.79601.8561
H123.15113.55112.10883.92834.73311.08343.79604.99005.65214.99001.8561

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 121.060 C1 C4 H8 121.060
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.060
C2 C5 H10 121.060 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.060
C3 C6 H12 121.060 H7 C4 H8 117.880
H9 C5 H10 117.880 H11 C6 H12 117.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.023      
2 C -0.023      
3 C -0.023      
4 C -0.206      
5 C -0.206      
6 C -0.206      
7 H 0.114      
8 H 0.114      
9 H 0.114      
10 H 0.114      
11 H 0.114      
12 H 0.114      


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 -31.881 0.000 0.000
y 0.000 -31.881 0.000
z 0.000 0.000 -39.807
Traceless
 xyz
x 3.963 0.000 0.000
y 0.000 3.963 0.000
z 0.000 0.000 -7.926
Polar
3z2-r2-15.852
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.410 0.000 0.000
y 0.000 14.410 0.000
z 0.000 0.000 4.414


<r2> (average value of r2) Å2
<r2> 168.522
(<r2>)1/2 12.982