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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-191.538171
Energy at 298.15K-191.544110
Nuclear repulsion energy156.542085
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 BLYP/STO-3G
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 3413 3158 0.63      
2 A 3384 3131 0.53      
3 A 3369 3117 0.52      
4 A 3259 3016 0.08      
5 A 1660 1535 2.10      
6 A 1560 1443 0.52      
7 A 1333 1234 0.15      
8 A 1239 1146 2.07      
9 A 1129 1045 2.62      
10 A 1044 966 1.44      
11 A 988 914 0.52      
12 A 954 882 4.35      
13 A 834 772 0.16      
14 A 740 685 30.17      
15 A 427 395 2.89      
16 A 3357 3106 2.76      
17 A 3333 3084 2.44      
18 A 1362 1260 18.93      
19 A 1243 1150 0.03      
20 A 1156 1070 2.55      
21 A 1091 1009 0.44      
22 A 1071 991 0.88      
23 A 971 898 3.05      
24 A 897 830 2.95      
25 A 857 793 0.14      
26 A 819 758 9.09      
27 A 475 439 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 20982.4 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 19412.9 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 BLYP/STO-3G
ABC
0.34558 0.20725 0.16677

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.278 1.078 0.682
C2 -0.278 1.078 -0.682
C3 -0.278 -0.479 0.780
C4 -0.278 -0.479 -0.780
C5 0.960 -1.020 0.000
H6 -0.151 1.861 1.453
H7 -0.151 1.861 -1.453
H8 -0.885 -1.112 1.452
H9 -0.885 -1.112 -1.452
H10 1.906 -0.446 0.000
H11 1.092 -2.120 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.36361.56052.13592.53031.10602.27742.39963.11742.74933.5457
C21.36362.13591.56052.53032.27741.10603.11742.39962.74933.5457
C31.56052.13591.55981.56032.43793.23691.10462.39802.31942.2757
C42.13591.56051.55981.56033.23692.43792.39801.10462.31942.2757
C52.53032.53031.56031.56033.41263.41262.34972.34971.10651.1075
H61.10602.27742.43793.23693.41262.90663.06164.22073.41504.4161
H72.27741.10603.23692.43793.41262.90664.22073.06163.41504.4161
H82.39963.11741.10462.39802.34973.06164.22072.90423.21562.6522
H93.11742.39962.39801.10462.34974.22073.06162.90423.21562.6522
H102.74932.74932.31942.31941.10653.41503.41503.21563.21561.8613
H113.54573.54572.27572.27571.10754.41614.41612.65222.65221.8613

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 93.605 C1 C2 H7 134.233
C1 C3 C4 86.395 C1 C3 C5 108.348
C1 C3 H8 127.579 C2 C1 C3 93.605
C2 C1 H6 134.233 C2 C4 C3 86.395
C2 C4 C5 108.348 C2 C4 H9 127.579
C3 C1 H6 131.448 C3 C4 C5 60.010
C3 C4 H9 127.483 C3 C5 C4 59.980
C3 C5 H10 119.884 C3 C5 H11 116.046
C4 C2 H7 131.448 C4 C3 C5 60.010
C4 C3 H8 127.483 C4 C5 H10 119.884
C4 C5 H11 116.046 C5 C3 H8 122.778
C5 C4 H9 122.778 H10 C5 H11 114.420
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.080      
2 C -0.080      
3 C -0.084      
4 C -0.084      
5 C -0.142      
6 H 0.074      
7 H 0.074      
8 H 0.081      
9 H 0.081      
10 H 0.082      
11 H 0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.166 -0.332 0.000 0.371
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.774 0.645 0.000
y 0.645 -26.492 0.000
z 0.000 0.000 -28.081
Traceless
 xyz
x -1.488 0.645 0.000
y 0.645 1.936 0.000
z 0.000 0.000 -0.448
Polar
3z2-r2-0.895
x2-y2-2.283
xy0.645
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.758 -0.321 0.000
y -0.321 4.518 0.000
z 0.000 0.000 4.211


<r2> (average value of r2) Å2
<r2> 89.538
(<r2>)1/2 9.462