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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-231.419585
Energy at 298.15K-231.423912
HF Energy-230.551710
Nuclear repulsion energy188.261671
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 CCSD(T)=FULL/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' 3158 3066        
2 A1' 1886 1831        
3 A1' 1496 1452        
4 A1' 791 768        
5 A1" 736 714        
6 A2' 3245 3150        
7 A2' 1103 1071        
8 A2' 504 489        
9 A2" 860 835        
10 A2" 197 191        
11 E' 3245 3150        
11 E' 3245 3150        
12 E' 3158 3065        
12 E' 3158 3065        
13 E' 1679 1630        
13 E' 1679 1629        
14 E' 1458 1416        
14 E' 1458 1415        
15 E' 1139 1106        
15 E' 1139 1105        
16 E' 799 776        
16 E' 799 776        
17 E' 220 214        
17 E' 219 213        
18 E" 853 828        
18 E" 853 828        
19 E" 743 722        
19 E" 743 721        
20 E" 322 312        
20 E" 322 312        

Unscaled Zero Point Vibrational Energy (zpe) 20602.3 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 19998.7 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 CCSD(T)=FULL/6-31G*
ABC
0.13639 0.13639 0.06819

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.838 0.000
C2 0.726 -0.419 0.000
C3 -0.726 -0.419 0.000
C4 0.000 2.180 0.000
C5 1.888 -1.090 0.000
C6 -1.888 -1.090 0.000
H7 -0.931 2.745 0.000
H8 0.931 2.745 0.000
H9 2.843 -0.566 0.000
H10 1.912 -2.179 0.000
H11 -1.912 -2.179 0.000
H12 -2.843 -0.566 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45161.45161.34202.69852.69852.12242.12243.17113.57203.57203.1711
C21.45161.45162.69851.34202.69853.57203.17112.12242.12243.17113.5720
C31.45161.45162.69852.69851.34203.17113.57203.57203.17112.12242.1224
C41.34202.69852.69853.77593.77591.08921.08923.95314.76004.76003.9531
C52.69851.34202.69853.77593.77594.76003.95311.08921.08923.95314.7600
C62.69852.69851.34203.77593.77593.95314.76004.76003.95311.08921.0892
H72.12243.57203.17111.08924.76003.95311.86195.02125.68625.02123.8243
H82.12243.17113.57201.08923.95314.76001.86193.82435.02125.68625.0212
H93.17112.12243.57203.95311.08924.76005.02123.82431.86195.02125.6862
H103.57202.12243.17114.76001.08923.95315.68625.02121.86193.82435.0212
H113.57203.17112.12244.76003.95311.08925.02125.68625.02123.82431.8619
H123.17113.57202.12243.95314.76001.08923.82435.02125.68625.02121.8619

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 121.272 C1 C4 H8 121.272
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 121.272
C2 C5 H10 121.272 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 121.272
C3 C6 H12 121.272 H7 C4 H8 117.456
H9 C5 H10 117.456 H11 C6 H12 117.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability