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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-231.355641
Energy at 298.15K-231.360055
HF Energy-230.552705
Nuclear repulsion energy188.549641
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*
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' 3177 3026 0.00      
2 A1' 1931 1839 0.00      
3 A1' 1504 1432 0.00      
4 A1' 801 763 0.00      
5 A1" 752 716 0.00      
6 A2' 3263 3107 0.00      
7 A2' 1113 1060 0.00      
8 A2' 510 485 0.00      
9 A2" 890 847 126.84      
10 A2" 200 191 4.53      
11 E' 3263 3107 11.00      
11 E' 3263 3107 11.00      
12 E' 3177 3025 12.33      
12 E' 3177 3025 12.33      
13 E' 1721 1639 8.88      
13 E' 1721 1639 8.88      
14 E' 1469 1399 9.10      
14 E' 1469 1399 9.10      
15 E' 1148 1094 6.30      
15 E' 1148 1094 6.30      
16 E' 807 769 8.35      
16 E' 807 769 8.35      
17 E' 223 213 0.00      
17 E' 223 213 0.00      
18 E" 882 840 0.00      
18 E" 882 840 0.00      
19 E" 762 726 0.00      
19 E" 762 726 0.00      
20 E" 324 309 0.00      
20 E" 324 309 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20846.1 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 19851.7 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 QCISD/6-31G*
ABC
0.13683 0.13683 0.06842

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.839 0.000
C2 0.727 -0.420 0.000
C3 -0.727 -0.420 0.000
C4 0.000 2.176 0.000
C5 1.884 -1.088 0.000
C6 -1.884 -1.088 0.000
H7 -0.930 2.741 0.000
H8 0.930 2.741 0.000
H9 2.838 -0.565 0.000
H10 1.909 -2.176 0.000
H11 -1.909 -2.176 0.000
H12 -2.838 -0.565 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45321.45321.33662.69502.69502.11682.11683.16673.56793.56793.1667
C21.45321.45322.69501.33662.69503.56793.16672.11682.11683.16673.5679
C31.45321.45322.69502.69501.33663.16673.56793.56793.16672.11682.1168
C41.33662.69502.69503.76833.76831.08801.08803.94574.75144.75143.9457
C52.69501.33662.69503.76833.76834.75143.94571.08801.08803.94574.7514
C62.69502.69501.33663.76833.76833.94574.75144.75143.94571.08801.0880
H72.11683.56793.16671.08804.75143.94571.85945.01275.67675.01273.8173
H82.11683.16673.56791.08803.94574.75141.85943.81735.01275.67675.0127
H93.16672.11683.56793.94571.08804.75145.01273.81731.85945.01275.6767
H103.56792.11683.16674.75141.08803.94575.67675.01271.85943.81735.0127
H113.56793.16672.11684.75143.94571.08805.01275.67675.01273.81731.8594
H123.16673.56792.11683.94574.75141.08803.81735.01275.67675.01271.8594

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 121.289 C1 C4 H8 121.289
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.289
C2 C5 H10 121.289 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.289
C3 C6 H12 121.289 H7 C4 H8 117.421
H9 C5 H10 117.421 H11 C6 H12 117.421
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability