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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-193.797325
Energy at 298.15K 
HF Energy-193.576105
Nuclear repulsion energy160.242437
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 B2PLYP=FULLultrafine/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' 3255 3088 7.16      
2 A' 3248 3081 47.14      
3 A' 3235 3069 2.63      
4 A' 3147 2985 29.62      
5 A' 1611 1528 4.66      
6 A' 1520 1442 0.71      
7 A' 1325 1257 0.64      
8 A' 1227 1164 1.50      
9 A' 1134 1076 1.35      
10 A' 1057 1003 1.92      
11 A' 983 932 2.94      
12 A' 884 838 3.64      
13 A' 826 784 0.02      
14 A' 749 710 58.84      
15 A' 428 407 5.48      
16 A" 3240 3074 20.09      
17 A" 3221 3056 6.94      
18 A" 1345 1276 19.77      
19 A" 1249 1185 0.09      
20 A" 1113 1056 4.60      
21 A" 1073 1018 4.85      
22 A" 1062 1007 0.95      
23 A" 964 914 2.77      
24 A" 890 844 10.44      
25 A" 834 791 2.71      
26 A" 800 759 26.59      
27 A" 460 437 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 20438.8 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 19390.3 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 B2PLYP=FULLultrafine/6-31G*
ABC
0.36324 0.21737 0.17428

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.265 1.055 0.671
C2 -0.265 1.055 -0.671
C3 -0.265 -0.466 0.762
C4 -0.265 -0.466 -0.762
C5 0.925 -1.007 0.000
H6 -0.185 1.812 1.443
H7 -0.185 1.812 -1.443
H8 -0.874 -1.053 1.438
H9 -0.874 -1.053 -1.438
H10 1.870 -0.464 0.000
H11 1.046 -2.090 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34211.52392.08962.47381.08402.24692.32473.04362.70453.4726
C21.34212.08961.52392.47382.24691.08403.04362.32472.70453.4726
C31.52392.08961.52321.51292.37893.17111.08312.35652.26612.2213
C42.08961.52391.52321.51293.17112.37892.35651.08312.26612.2213
C52.47382.47381.51291.51293.35593.35592.30342.30341.08931.0893
H61.08402.24692.37893.17113.35592.88632.94664.12103.38884.3382
H72.24691.08403.17112.37893.35592.88634.12102.94663.38884.3382
H82.32473.04361.08312.35652.30342.94664.12102.87573.15272.6127
H93.04362.32472.35651.08312.30344.12102.94662.87573.15272.6127
H102.70452.70452.26612.26611.08933.38883.38883.15273.15271.8224
H113.47263.47262.22132.22131.08934.33824.33822.61272.61271.8224

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 93.407 C1 C2 H7 135.423
C1 C3 C4 86.593 C1 C3 C5 109.102
C1 C3 H8 125.334 C2 C1 C3 93.407
C2 C1 H6 135.423 C2 C4 C3 86.593
C2 C4 C5 109.102 C2 C4 H9 125.334
C3 C1 H6 130.876 C3 C4 C5 59.774
C3 C4 H9 128.635 C3 C5 C4 60.453
C3 C5 H10 120.231 C3 C5 H11 116.270
C4 C2 H7 130.876 C4 C3 C5 59.774
C4 C3 H8 128.635 C4 C5 H10 120.231
C4 C5 H11 116.270 C5 C3 H8 124.234
C5 C4 H9 124.234 H10 C5 H11 113.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability