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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-192.638029
Energy at 298.15K-192.644628
Nuclear repulsion energy159.628907
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 HF/LANL2DZ
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 3459 3113 11.97      
2 A 3435 3091 41.09      
3 A 3414 3072 12.20      
4 A 3307 2976 40.19      
5 A 1715 1543 13.41      
6 A 1619 1457 2.61      
7 A 1408 1267 0.39      
8 A 1299 1169 3.24      
9 A 1201 1081 4.81      
10 A 1120 1008 2.81      
11 A 1044 940 8.02      
12 A 1002 902 3.77      
13 A 869 782 0.39      
14 A 843 759 118.96      
15 A 478 431 9.75      
16 A 3425 3082 20.02      
17 A 3413 3072 0.07      
18 A 1436 1292 25.08      
19 A 1350 1215 0.04      
20 A 1248 1123 2.67      
21 A 1173 1056 13.65      
22 A 1147 1032 1.10      
23 A 1054 948 8.40      
24 A 976 879 0.59      
25 A 933 840 0.17      
26 A 838 754 49.42      
27 A 501 451 1.66      

Unscaled Zero Point Vibrational Energy (zpe) 21854.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 19666.6 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 HF/LANL2DZ
ABC
0.36104 0.21465 0.17220

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.270 1.062 0.673
C2 -0.270 1.062 -0.673
C3 -0.270 -0.469 0.765
C4 -0.270 -0.469 -0.765
C5 0.939 -1.014 0.000
H6 -0.177 1.826 1.416
H7 -0.177 1.826 -1.416
H8 -0.861 -1.070 1.422
H9 -0.861 -1.070 -1.422
H10 1.859 -0.461 0.000
H11 1.059 -2.083 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34551.53392.10042.49491.06962.22572.33613.04692.70313.4802
C21.34552.10041.53392.49492.22571.06963.04692.33612.70313.4802
C31.53392.10041.53021.53122.38723.16721.06862.34372.26272.2265
C42.10041.53391.53021.53123.16722.38722.34371.06862.26272.2265
C52.49492.49491.53121.53123.36363.36362.29452.29451.07341.0761
H61.06962.22572.38723.16723.36362.83152.97604.11193.37344.3373
H72.22571.06963.16722.38723.36362.83154.11192.97603.37344.3373
H82.33613.04691.06862.34372.29452.97604.11192.84353.12932.5947
H93.04692.33612.34371.06862.29454.11192.97602.84353.12932.5947
H102.70312.70312.26272.26271.07343.37343.37343.12933.12931.8090
H113.48023.48022.22652.22651.07614.33734.33732.59472.59471.8090

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 93.453 C1 C2 H7 133.997
C1 C3 C4 86.547 C1 C3 C5 108.970
C1 C3 H8 126.782 C2 C1 C3 93.453
C2 C1 H6 133.997 C2 C4 C3 86.547
C2 C4 C5 108.970 C2 C4 H9 126.782
C3 C1 H6 132.140 C3 C4 C5 60.021
C3 C4 H9 127.913 C3 C5 C4 59.957
C3 C5 H10 119.583 C3 C5 H11 116.193
C4 C2 H7 132.140 C4 C3 C5 60.021
C4 C3 H8 127.913 C4 C5 H10 119.583
C4 C5 H11 116.193 C5 C3 H8 122.919
C5 C4 H9 122.919 H10 C5 H11 114.619
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.205      
2 C -0.205      
3 C -0.247      
4 C -0.247      
5 C -0.384      
6 H 0.217      
7 H 0.217      
8 H 0.225      
9 H 0.225      
10 H 0.191      
11 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.248 -0.418 0.000 0.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.507 0.755 0.000
y 0.755 -28.735 0.000
z 0.000 0.000 -30.226
Traceless
 xyz
x -3.027 0.755 0.000
y 0.755 2.631 0.000
z 0.000 0.000 0.395
Polar
3z2-r20.791
x2-y2-3.772
xy0.755
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.819 -0.308 0.000
y -0.308 7.587 0.000
z 0.000 0.000 3.642


<r2> (average value of r2) Å2
<r2> 93.538
(<r2>)1/2 9.672