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All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-193.407569
Energy at 298.15K-193.413925
HF Energy-192.709790
Nuclear repulsion energy160.342886
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 MP3=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 A' 3284 3081 8.48      
2 A' 3274 3072 34.26      
3 A' 3262 3061 2.53      
4 A' 3175 2979 22.52      
5 A' 1653 1551 3.79      
6 A' 1537 1443 1.16      
7 A' 1360 1276 0.60      
8 A' 1247 1170 1.49      
9 A' 1149 1078 1.38      
10 A' 1073 1007 1.74      
11 A' 998 936 2.96      
12 A' 925 868 3.79      
13 A' 846 794 0.16      
14 A' 757 710 62.97      
15 A' 438 411 6.17      
16 A" 3266 3064 16.10      
17 A" 3249 3049 4.28      
18 A" 1365 1281 20.81      
19 A" 1268 1190 0.32      
20 A" 1133 1063 5.02      
21 A" 1102 1034 5.08      
22 A" 1080 1013 1.97      
23 A" 982 921 2.33      
24 A" 903 847 9.30      
25 A" 849 796 4.01      
26 A" 815 765 26.00      
27 A" 468 439 1.94      

Unscaled Zero Point Vibrational Energy (zpe) 20728.1 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 19449.2 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 MP3=FULL/6-31G*
ABC
0.36381 0.21755 0.17459

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.265 1.055 0.670
C2 -0.265 1.055 -0.670
C3 -0.265 -0.467 0.760
C4 -0.265 -0.467 -0.760
C5 0.926 -1.003 0.000
H6 -0.188 1.812 1.442
H7 -0.188 1.812 -1.442
H8 -0.874 -1.056 1.435
H9 -0.874 -1.056 -1.435
H10 1.868 -0.456 0.000
H11 1.051 -2.085 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.33911.52512.08812.47061.08432.24442.32673.04252.69843.4699
C21.33912.08811.52512.47062.24441.08433.04252.32672.69843.4699
C31.52512.08811.51911.51102.38063.16991.08362.35252.26432.2192
C42.08811.52511.51911.51103.16992.38062.35251.08362.26432.2192
C52.47062.47061.51101.51103.35353.35352.30312.30311.08931.0891
H61.08432.24442.38063.16993.35352.88392.94904.12003.38374.3360
H72.24441.08433.16992.38063.35352.88394.12002.94903.38374.3360
H82.32673.04251.08362.35252.30312.94904.12002.87023.15282.6123
H93.04252.32672.35251.08362.30314.12002.94902.87023.15282.6123
H102.69842.69842.26432.26431.08933.38373.38373.15283.15281.8229
H113.46993.46992.21922.21921.08914.33604.33602.61232.61231.8229

picture of Bicyclo[2.1.0]pent-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 93.382 C1 C2 H7 135.429
C1 C3 C4 86.618 C1 C3 C5 108.926
C1 C3 H8 125.381 C2 C1 C3 93.382
C2 C1 H6 135.429 C2 C4 C3 86.618
C2 C4 C5 108.926 C2 C4 H9 125.381
C3 C1 H6 130.914 C3 C4 C5 59.823
C3 C4 H9 128.571 C3 C5 C4 60.354
C3 C5 H10 120.230 C3 C5 H11 116.251
C4 C2 H7 130.914 C4 C3 C5 59.823
C4 C3 H8 128.571 C4 C5 H10 120.230
C4 C5 H11 116.251 C5 C3 H8 124.342
C5 C4 H9 124.342 H10 C5 H11 113.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability