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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-194.006261
Energy at 298.15K-194.012542
Nuclear repulsion energy160.291111
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 mPW1PW91/aug-cc-pVDZ
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 3242 3107 2.33      
2 A 3234 3100 45.22      
3 A 3225 3090 0.57      
4 A 3126 2996 32.00      
5 A 1621 1553 9.24      
6 A 1469 1408 3.38      
7 A 1314 1259 0.99      
8 A 1212 1162 0.74      
9 A 1113 1066 1.73      
10 A 1037 994 2.05      
11 A 967 927 4.34      
12 A 888 851 2.11      
13 A 806 772 0.01      
14 A 739 708 74.51      
15 A 424 406 6.97      
16 A 3226 3092 16.58      
17 A 3203 3070 5.51      
18 A 1321 1266 23.14      
19 A 1217 1166 0.13      
20 A 1071 1026 3.91      
21 A 1040 997 0.51      
22 A 1034 991 7.22      
23 A 958 918 1.63      
24 A 895 857 9.11      
25 A 829 794 6.39      
26 A 792 759 31.88      
27 A 455 436 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 20228.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 19385.1 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 mPW1PW91/aug-cc-pVDZ
ABC
0.36298 0.21786 0.17472

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.268 1.052 0.673
C2 -0.268 1.052 -0.673
C3 -0.268 -0.462 0.760
C4 -0.268 -0.462 -0.760
C5 0.925 -1.005 0.000
H6 -0.127 1.826 1.426
H7 -0.127 1.826 -1.426
H8 -0.883 -1.089 1.400
H9 -0.883 -1.089 -1.400
H10 1.859 -0.443 0.000
H11 1.034 -2.092 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34571.51632.08432.47141.08922.24162.34343.04292.68563.4691
C21.34572.08431.51632.47142.24161.08923.04292.34342.68563.4691
C31.51632.08431.51981.51512.38713.16751.08702.33162.25882.2206
C42.08431.51631.51981.51513.16752.38712.33161.08702.25882.2206
C52.47142.47141.51511.51513.34043.34042.28802.28801.09031.0925
H61.08922.24162.38713.16753.34042.85223.01174.12993.33624.3286
H72.24161.08923.16752.38713.34042.85224.12993.01173.33624.3286
H82.34343.04291.08702.33162.28803.01174.12992.79973.14582.5770
H93.04292.34342.33161.08702.28804.12993.01172.79973.14582.5770
H102.68562.68562.25882.25881.09033.33623.33623.14583.14581.8439
H113.46913.46912.22062.22061.09254.32864.32862.57702.57701.8439

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 93.290 C1 C2 H7 133.756
C1 C3 C4 86.710 C1 C3 C5 109.227
C1 C3 H8 127.592 C2 C1 C3 93.290
C2 C1 H6 133.756 C2 C4 C3 86.710
C2 C4 C5 109.227 C2 C4 H9 127.592
C3 C1 H6 132.055 C3 C4 C5 59.898
C3 C4 H9 126.071 C3 C5 C4 60.203
C3 C5 H10 119.319 C3 C5 H11 115.822
C4 C2 H7 132.055 C4 C3 C5 59.898
C4 C3 H8 126.071 C4 C5 H10 119.319
C4 C5 H11 115.822 C5 C3 H8 122.258
C5 C4 H9 122.258 H10 C5 H11 115.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.278      
2 C 0.278      
3 C 0.696      
4 C 0.696      
5 C 0.604      
6 H -0.334      
7 H -0.334      
8 H -0.496      
9 H -0.496      
10 H -0.452      
11 H -0.440      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.182 -0.447 0.000 0.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.726 0.846 0.000
y 0.846 -28.593 0.000
z 0.000 0.000 -29.769
Traceless
 xyz
x -2.545 0.846 0.000
y 0.846 2.154 0.000
z 0.000 0.000 0.390
Polar
3z2-r20.781
x2-y2-3.133
xy0.846
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.287 -0.509 0.000
y -0.509 8.886 0.000
z 0.000 0.000 8.435


<r2> (average value of r2) Å2
<r2> 87.597
(<r2>)1/2 9.359