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All results from a given calculation for C5H8 (Cyclopentene)

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-195.304148
Energy at 298.15K-195.313098
Nuclear repulsion energy171.352079
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' 3232 3097 20.76      
2 A' 3136 3005 39.31      
3 A' 3097 2967 45.84      
4 A' 3076 2947 12.74      
5 A' 3035 2908 26.50      
6 A' 1701 1630 3.77      
7 A' 1495 1433 2.59      
8 A' 1467 1405 1.69      
9 A' 1326 1271 1.08      
10 A' 1223 1172 1.77      
11 A' 1121 1074 0.18      
12 A' 1060 1015 8.74      
13 A' 992 951 1.35      
14 A' 927 889 0.47      
15 A' 823 788 1.02      
16 A' 711 681 35.63      
17 A' 611 586 13.85      
18 A' 141 135 0.21      
19 A" 3206 3072 7.04      
20 A" 3091 2962 27.64      
21 A" 3036 2910 61.26      
22 A" 1473 1412 3.07      
23 A" 1379 1322 1.96      
24 A" 1318 1263 0.36      
25 A" 1289 1235 1.53      
26 A" 1225 1174 0.01      
27 A" 1143 1095 1.53      
28 A" 1053 1009 2.49      
29 A" 960 920 0.00      
30 A" 930 891 11.46      
31 A" 894 857 1.60      
32 A" 783 750 0.39      
33 A" 392 375 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25670.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 24599.9 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 mPW1PW91/aug-cc-pVDZ
ABC
0.24474 0.24174 0.13191

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 0.263 -1.199 0.000
C2 -0.068 -0.327 1.230
C3 -0.068 -0.327 -1.230
C4 -0.068 1.070 0.668
C5 -0.068 1.070 -0.668
H6 1.335 -1.432 0.000
H7 -0.278 -2.153 0.000
H8 -1.056 -0.569 1.653
H9 -1.056 -0.569 -1.653
H10 -0.106 1.963 1.291
H11 -0.106 1.963 -1.291
H12 0.657 -0.459 -2.045
H13 0.657 -0.459 2.045

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54341.54342.38792.38791.09741.09612.20672.20673.43503.43502.21022.2102
C21.54342.46021.50572.35682.16822.21131.10223.05752.29103.40633.35691.0985
C31.54342.46022.35681.50572.16822.21133.05751.10223.40632.29101.09853.3569
C42.38791.50572.35681.33612.94503.29762.15223.00821.08972.15373.19742.1814
C52.38792.35681.50571.33612.94503.29763.00822.15222.15371.08972.18143.1974
H61.09742.16822.16822.94502.94501.76623.03263.03263.90753.90752.36392.3639
H71.09612.21132.21133.29763.29761.76622.41832.41834.31674.31672.81492.8149
H82.20671.10223.05752.15223.00823.03262.41833.30612.72813.99774.07721.7612
H92.20673.05751.10223.00822.15223.03262.41833.30613.99772.72811.76124.0772
H103.43502.29103.40631.08972.15373.90754.31672.72813.99772.58284.19272.6486
H113.43503.40632.29102.15371.08973.90754.31673.99772.72812.58282.64864.1927
H122.21023.35691.09853.19742.18142.36392.81494.07721.76124.19272.64864.0899
H132.21021.09853.35692.18143.19742.36392.81491.76124.07722.64864.19274.0899

picture of Cyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 103.092 C1 C2 H8 111.961
C1 C2 H13 112.474 C1 C3 C5 103.092
C1 C3 H9 111.961 C1 C3 H12 112.474
C2 C1 C3 105.690 C2 C1 H6 109.213
C2 C1 H7 112.709 C2 C4 C5 111.917
C2 C4 H10 123.145 C3 C1 H6 109.213
C3 C1 H7 112.709 C3 C5 C4 111.917
C3 C5 H11 123.145 C4 C2 H8 110.270
C4 C2 H13 112.852 C4 C5 H11 124.891
C5 C3 H9 110.270 C5 C3 H12 112.852
C5 C4 H10 124.891 H6 C1 H7 107.254
H8 C2 H13 106.314 H9 C3 H12 106.314
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 0.527      
2 C 0.414      
3 C 0.414      
4 C 0.273      
5 C 0.273      
6 H -0.264      
7 H -0.185      
8 H -0.175      
9 H -0.175      
10 H -0.376      
11 H -0.376      
12 H -0.176      
13 H -0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.064 -0.246 0.000 0.254
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.672 -0.041 0.000
y -0.041 -31.410 0.000
z 0.000 0.000 -30.690
Traceless
 xyz
x -1.622 -0.041 0.000
y -0.041 0.271 0.000
z 0.000 0.000 1.351
Polar
3z2-r22.702
x2-y2-1.262
xy-0.041
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.075 -0.106 0.000
y -0.106 8.922 0.000
z 0.000 0.000 10.127


<r2> (average value of r2) Å2
<r2> 105.007
(<r2>)1/2 10.247