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

using model chemistry: MP2=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 MP2=FULL/6-31G**
 hartrees
Energy at 0K-193.426998
Energy at 298.15K-193.433332
HF Energy-192.720456
Nuclear repulsion energy160.744486
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 MP2=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3310 3093 6.79      
2 A 3301 3085 31.73      
3 A 3296 3080 5.68      
4 A 3296 3080 11.18      
5 A 3270 3055 7.11      
6 A 3196 2986 22.20      
7 A 1600 1495 3.94      
8 A 1532 1432 0.74      
9 A 1362 1273 18.71      
10 A 1346 1257 0.80      
11 A 1264 1181 0.09      
12 A 1240 1159 1.47      
13 A 1149 1073 1.32      
14 A 1127 1053 4.61      
15 A 1089 1018 4.93      
16 A 1073 1003 1.00      
17 A 1073 1003 2.21      
18 A 995 930 2.92      
19 A 985 920 1.63      
20 A 900 841 3.33      
21 A 886 828 10.98      
22 A 843 787 0.08      
23 A 834 780 12.17      
24 A 809 756 15.16      
25 A 754 704 57.88      
26 A 458 428 1.96      
27 A 431 402 5.71      

Unscaled Zero Point Vibrational Energy (zpe) 20709.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 19350.7 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 MP2=FULL/6-31G**
ABC
0.36328 0.21972 0.17584

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.078 -0.676 0.092
C2 -1.078 0.676 0.092
C3 0.345 -0.759 -0.406
C4 0.345 0.759 -0.405
C5 1.248 -0.000 0.541
H6 -1.747 -1.422 0.498
H7 -1.747 1.422 0.498
H8 0.735 -1.391 -1.187
H9 0.735 1.392 -1.187
H10 1.021 -0.000 1.599
H11 2.304 -0.000 0.294

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.35211.51022.08162.46351.08082.23892.33173.03332.67083.4548
C21.35212.08161.51022.46362.23901.08083.03322.33172.67103.4550
C31.51022.08161.51811.51202.37343.15431.07852.32132.24722.2141
C42.08161.51021.51811.51213.15442.37342.32131.07852.24722.2141
C52.46352.46361.51201.51213.31573.31592.27702.27701.08211.0843
H61.08082.23902.37343.15443.31572.84363.00034.11303.30094.2981
H72.23891.08083.15432.37343.31592.84364.11293.00023.30134.2983
H82.33173.03321.07852.32132.27703.00034.11292.78343.12722.5675
H93.03332.33172.32131.07852.27704.11303.00022.78343.12722.5675
H102.67082.67102.24722.24721.08213.30093.30133.12723.12721.8295
H113.45483.45502.21412.21411.08434.29814.29832.56752.56751.8295

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 93.151 C1 C2 H7 133.628
C1 C3 C4 86.851 C1 C3 C5 109.201
C1 C3 H8 127.726 C2 C1 C3 93.150
C2 C1 H6 133.630 C2 C4 C3 86.848
C2 C4 C5 109.207 C2 C4 H9 127.723
C3 C1 H6 132.003 C3 C4 C5 59.868
C3 C4 H9 125.915 C3 C5 C4 60.263
C3 C5 H10 119.121 C3 C5 H11 116.056
C4 C2 H7 132.000 C4 C3 C5 59.869
C4 C3 H8 125.916 C4 C5 H10 119.122
C4 C5 H11 116.058 C5 C3 H8 122.144
C5 C4 H9 122.143 H10 C5 H11 115.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability