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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-193.280356
Energy at 298.15K-193.286826
HF Energy-192.710618
Nuclear repulsion energy161.060038
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 CID/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 3347 3092 12.68      
2 A 3333 3079 32.71      
3 A 3321 3068 2.47      
4 A 3234 2987 25.67      
5 A 1710 1580 4.67      
6 A 1575 1455 0.95      
7 A 1398 1291 0.45      
8 A 1280 1183 1.32      
9 A 1177 1087 1.45      
10 A 1097 1013 2.11      
11 A 1024 946 3.14      
12 A 956 883 3.97      
13 A 866 800 0.04      
14 A 791 730 66.11      
15 A 452 417 5.89      
16 A 3324 3071 19.99      
17 A 3311 3058 2.04      
18 A 1404 1297 21.66      
19 A 1301 1201 0.16      
20 A 1169 1079 3.58      
21 A 1133 1046 6.73      
22 A 1109 1025 1.24      
23 A 1011 934 4.21      
24 A 953 880 9.38      
25 A 873 806 3.26      
26 A 836 772 29.02      
27 A 483 446 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 21232.9 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 19612.8 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 CID/6-31G*
ABC
0.36811 0.21900 0.17595

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.266 1.052 0.667
C2 -0.266 1.052 -0.667
C3 -0.266 -0.461 0.754
C4 -0.266 -0.461 -0.754
C5 0.920 -1.006 0.000
H6 -0.130 1.818 1.416
H7 -0.130 1.818 -1.416
H8 -0.879 -1.076 1.395
H9 -0.879 -1.076 -1.395
H10 1.853 -0.458 0.000
H11 1.026 -2.085 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.33471.51462.07562.46631.08012.22432.33063.02572.68613.4570
C21.33472.07561.51462.46632.22431.08013.02572.33062.68613.4570
C31.51462.07561.50891.50722.37653.14991.07902.31802.24912.2082
C42.07561.51461.50891.50723.14992.37652.31801.07902.24912.2082
C52.46632.46631.50721.50723.32843.32842.27672.27671.08191.0843
H61.08012.22432.37653.14993.32842.83282.98944.10343.33434.3094
H72.22431.08013.14992.37653.32842.83284.10342.98943.33434.3094
H82.33063.02571.07902.31802.27672.98944.10342.78943.12862.5672
H93.02572.33062.31801.07902.27674.10342.98942.78943.12862.5672
H102.68612.68612.24912.24911.08193.33433.33433.12863.12861.8243
H113.45703.45702.20822.20821.08434.30944.30942.56722.56721.8243

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 93.295 C1 C2 H7 133.903
C1 C3 C4 86.705 C1 C3 C5 109.407
C1 C3 H8 127.134 C2 C1 C3 93.295
C2 C1 H6 133.903 C2 C4 C3 86.705
C2 C4 C5 109.407 C2 C4 H9 127.134
C3 C1 H6 131.938 C3 C4 C5 59.963
C3 C4 H9 126.395 C3 C5 C4 60.075
C3 C5 H10 119.712 C3 C5 H11 115.928
C4 C2 H7 131.938 C4 C3 C5 59.963
C4 C3 H8 126.395 C4 C5 H10 119.712
C4 C5 H11 115.928 C5 C3 H8 122.502
C5 C4 H9 122.502 H10 C5 H11 114.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability