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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: QCISD(T)/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(T)/6-31G*
 hartrees
Energy at 0K-231.391352
Energy at 298.15K-231.395642
HF Energy-230.551207
Nuclear repulsion energy188.025402
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(T)/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' 3156 3028        
2 A1' 1880 1803        
3 A1' 1493 1433        
4 A1' 789 757        
5 A1" 734 704        
6 A2' 3243 3111        
7 A2' 1100 1056        
8 A2' 502 481        
9 A2" 854 820        
10 A2" 194 186        
11 E' 3243 3111        
11 E' 3243 3111        
12 E' 3156 3027        
12 E' 3155 3027        
13 E' 1673 1605        
13 E' 1673 1605        
14 E' 1456 1397        
14 E' 1456 1396        
15 E' 1137 1090        
15 E' 1136 1090        
16 E' 797 765        
16 E' 797 764        
17 E' 220 211        
17 E' 218 209        
18 E" 847 813        
18 E" 847 813        
19 E" 739 709        
19 E" 739 709        
20 E" 315 302        
20 E" 315 302        

Unscaled Zero Point Vibrational Energy (zpe) 20552.3 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 19715.8 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(T)/6-31G*
ABC
0.13602 0.13602 0.06801

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/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 2.183 0.000
C5 1.891 -1.092 0.000
C6 -1.891 -1.092 0.000
H7 -0.931 2.748 0.000
H8 0.931 2.748 0.000
H9 2.846 -0.568 0.000
H10 1.915 -2.181 0.000
H11 -1.915 -2.181 0.000
H12 -2.846 -0.568 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45371.45371.34392.70232.70232.12432.12433.17473.57593.57593.1747
C21.45371.45372.70231.34392.70233.57593.17472.12432.12433.17473.5759
C31.45371.45372.70232.70231.34393.17473.57593.57593.17472.12432.1243
C41.34392.70232.70233.78133.78131.08961.08963.95814.76554.76553.9581
C52.70231.34392.70233.78133.78134.76553.95811.08961.08963.95814.7655
C62.70232.70231.34393.78133.78133.95814.76554.76553.95811.08961.0896
H72.12433.57593.17471.08964.76553.95811.86285.02655.69205.02653.8291
H82.12433.17473.57591.08963.95814.76551.86283.82915.02655.69205.0265
H93.17472.12433.57593.95811.08964.76555.02653.82911.86285.02655.6920
H103.57592.12433.17474.76551.08963.95815.69205.02651.86283.82915.0265
H113.57593.17472.12434.76553.95811.08965.02655.69205.02653.82911.8628
H123.17473.57592.12433.95814.76551.08963.82915.02655.69205.02651.8628

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 121.258 C1 C4 H8 121.258
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.258
C2 C5 H10 121.258 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.258
C3 C6 H12 121.258 H7 C4 H8 117.485
H9 C5 H10 117.485 H11 C6 H12 117.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability