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All results from a given calculation for C6H6 (Trimethylenecycopropane)

using model chemistry: QCISD(T)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-231.666413
Energy at 298.15K-231.670829
HF Energy-230.632731
Nuclear repulsion energy188.744380
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)/cc-pVTZ
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' 3147 2985        
2 A1' 1859 1764        
3 A1' 779 739        
4 A1" 733 696        
5 A1; 1481 1405        
6 A2' 3238 3072        
7 A2' 1098 1042        
8 A2' 494 469        
9 A2" 888 843        
10 A2" 203 193        
11 E' 3239 3072        
11 E' 3239 3072        
12 E' 3148 2986        
12 E' 3148 2986        
13 E' 1660 1575        
13 E' 1660 1574        
14 E' 1444 1370        
14 E' 1444 1370        
15 E' 1127 1069        
15 E' 1126 1068        
16 E' 789 748        
16 E' 788 748        
17 E' 219 207        
17 E' 218 207        
18 E" 882 837        
18 E" 881 836        
19 E" 751 712        
19 E" 750 712        
20 E" 330 313        
20 E" 326 310        

Unscaled Zero Point Vibrational Energy (zpe) 20543.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 19487.8 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)/cc-pVTZ
ABC
0.13703 0.13703 0.06852

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.837 0.000
C2 0.725 -0.419 0.000
C3 -0.725 -0.419 0.000
C4 0.000 2.176 0.000
C5 1.884 -1.088 0.000
C6 -1.884 -1.088 0.000
H7 -0.929 2.732 0.000
H8 0.929 2.732 0.000
H9 2.830 -0.561 0.000
H10 1.901 -2.171 0.000
H11 -1.901 -2.171 0.000
H12 -2.830 -0.561 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
C11.45041.45041.33862.69412.69412.10992.10993.15693.55843.55843.1569
C21.45041.45042.69411.33862.69413.55843.15692.10992.10993.15693.5584
C31.45041.45042.69412.69411.33863.15693.55843.55843.15692.10992.1099
C41.33862.69412.69413.76893.76891.08291.08293.93714.74424.74423.9371
C52.69411.33862.69413.76893.76894.74423.93711.08291.08293.93714.7442
C62.69412.69411.33863.76893.76893.93714.74424.74423.93711.08291.0829
H72.10993.55843.15691.08294.74423.93711.85904.99765.66074.99763.8017
H82.10993.15693.55841.08293.93714.74421.85903.80174.99765.66074.9976
H93.15692.10993.55843.93711.08294.74424.99763.80171.85904.99765.6607
H103.55842.10993.15694.74421.08293.93715.66074.99761.85903.80184.9976
H113.55843.15692.10994.74423.93711.08294.99765.66074.99763.80181.8590
H123.15693.55842.10993.93714.74421.08293.80174.99765.66074.99761.8590

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 120.870 C1 C4 H8 120.870
C2 C1 C3 60.000 C2 C1 C4 150.000
C2 C3 C6 150.000 C2 C5 H9 120.870
C2 C5 H10 120.870 C3 C1 C4 150.000
C3 C2 C5 150.000 C3 C6 H11 120.870
C3 C6 H12 120.870 H7 C4 H8 118.260
H9 C5 H10 118.260 H11 C6 H12 118.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability