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

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-192.932263
Energy at 298.15K-192.938397
Nuclear repulsion energy160.699442
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 LSDA/6-31+G**
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 3156 3108 2.40      
2 A 3148 3101 29.37      
3 A 3135 3088 2.43      
4 A 3039 2993 24.81      
5 A 1583 1560 6.98      
6 A 1412 1391 5.78      
7 A 1285 1265 3.16      
8 A 1186 1168 1.64      
9 A 1082 1066 2.96      
10 A 1009 994 2.75      
11 A 943 929 5.94      
12 A 875 862 3.01      
13 A 781 769 0.80      
14 A 710 699 79.87      
15 A 410 404 8.81      
16 A 3141 3094 10.59      
17 A 3120 3073 4.21      
18 A 1279 1260 26.00      
19 A 1173 1156 0.06      
20 A 1037 1021 6.29      
21 A 1012 997 0.26      
22 A 991 977 9.82      
23 A 941 927 0.42      
24 A 866 853 8.67      
25 A 806 793 13.77      
26 A 778 766 30.73      
27 A 441 435 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 19668.6 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 19373.6 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 LSDA/6-31+G**
ABC
0.36343 0.21999 0.17620

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.267 1.045 0.674
C2 -0.267 1.045 -0.674
C3 -0.267 -0.458 0.756
C4 -0.267 -0.458 -0.756
C5 0.921 -0.997 0.000
H6 -0.120 1.821 1.433
H7 -0.120 1.821 -1.433
H8 -0.885 -1.095 1.397
H9 -0.885 -1.095 -1.397
H10 1.856 -0.421 0.000
H11 1.042 -2.090 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34851.50572.07532.45721.09552.25082.34123.04122.66723.4636
C21.34852.07531.50572.45722.25081.09553.04122.34122.66723.4636
C31.50572.07531.51261.50842.38253.16421.09372.32862.25472.2244
C42.07531.50571.51261.50843.16422.38252.32861.09372.25472.2244
C52.45722.45721.50841.50843.32873.32872.28552.28551.09801.0994
H61.09552.25082.38253.16423.32872.86683.01444.13483.31474.3242
H72.25081.09553.16422.38253.32872.86684.13483.01443.31474.3242
H82.34123.04121.09372.32862.28553.01444.13482.79413.14932.5797
H93.04122.34122.32861.09372.28554.13483.01442.79413.14932.5797
H102.66722.66722.25472.25471.09803.31473.31473.14933.14931.8567
H113.46363.46362.22442.22441.09944.32424.32422.57972.57971.8567

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 93.123 C1 C2 H7 133.864
C1 C3 C4 86.877 C1 C3 C5 109.217
C1 C3 H8 127.781 C2 C1 C3 93.123
C2 C1 H6 133.864 C2 C4 C3 86.877
C2 C4 C5 109.217 C2 C4 H9 127.781
C3 C1 H6 132.029 C3 C4 C5 59.909
C3 C4 H9 125.864 C3 C5 C4 60.181
C3 C5 H10 118.934 C3 C5 H11 116.190
C4 C2 H7 132.029 C4 C3 C5 59.909
C4 C3 H8 125.864 C4 C5 H10 118.934
C4 C5 H11 116.190 C5 C3 H8 122.068
C5 C4 H9 122.068 H10 C5 H11 115.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155      
2 C -0.155      
3 C -0.147      
4 C -0.147      
5 C -0.411      
6 H 0.152      
7 H 0.152      
8 H 0.174      
9 H 0.174      
10 H 0.187      
11 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.190 -0.537 0.000 0.569
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.995 0.882 0.000
y 0.882 -28.730 0.000
z 0.000 0.000 -30.163
Traceless
 xyz
x -2.549 0.882 0.000
y 0.882 2.349 0.000
z 0.000 0.000 0.200
Polar
3z2-r20.400
x2-y2-3.265
xy0.882
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.138 -0.506 0.000
y -0.506 8.948 0.000
z 0.000 0.000 8.388


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000