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All results from a given calculation for C5H6 (1,3-Cyclopentadiene)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-194.062476
Energy at 298.15K-194.068710
HF Energy-194.062476
Nuclear repulsion energy156.984900
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 mPW1PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3275 3116 2.53      
2 A1 3250 3092 11.14      
3 A1 3058 2910 8.07      
4 A1 1596 1519 2.33      
5 A1 1432 1363 0.01      
6 A1 1415 1346 22.06      
7 A1 1143 1087 0.17      
8 A1 1038 988 0.04      
9 A1 949 903 10.92      
10 A1 815 775 0.03      
11 A2 1129 1074 0.00      
12 A2 966 919 0.00      
13 A2 720 685 0.00      
14 A2 525 500 0.00      
15 B1 3093 2943 7.45      
16 B1 961 914 0.07      
17 B1 921 876 23.54      
18 B1 689 656 60.85      
19 B1 342 325 11.31      
20 B2 3269 3110 19.74      
21 B2 3239 3082 4.21      
22 B2 1679 1598 0.39      
23 B2 1338 1273 1.49      
24 B2 1281 1219 1.58      
25 B2 1124 1070 2.44      
26 B2 989 941 12.54      
27 B2 815 776 7.11      

Unscaled Zero Point Vibrational Energy (zpe) 20524.5 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 19529.0 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 mPW1PW91/6-31G**
ABC
0.28369 0.27614 0.14362

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.876 0.000 1.873
H2 -0.876 0.000 1.873
H3 0.000 2.207 0.611
H4 0.000 -2.207 0.611
H5 0.000 1.346 -1.881
H6 0.000 -1.346 -1.881
C7 0.000 1.176 0.282
C8 0.000 -1.176 0.282
C9 0.000 0.000 1.210
C10 0.000 0.732 -0.988
C11 0.000 -0.732 -0.988

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75182.68902.68904.08334.08332.16362.16361.09853.08103.0810
H21.75182.68902.68904.08334.08332.16362.16361.09853.08103.0810
H32.68902.68904.41362.63674.33931.08213.39852.28672.17563.3457
H42.68902.68904.41364.33932.63673.39851.08212.28673.34572.1756
H54.08334.08332.63674.33932.69102.17013.32223.37161.08322.2611
H64.08334.08334.33932.63672.69103.32222.17013.37162.26111.0832
C72.16362.16361.08213.39852.17013.32222.35161.49791.34602.2922
C82.16362.16363.39851.08213.32222.17012.35161.49792.29221.3460
C91.09851.09852.28672.28673.37163.37161.49791.49792.31742.3174
C103.08103.08102.17563.34571.08322.26111.34602.29222.31741.4638
C113.08103.08103.34572.17562.26111.08322.29221.34602.31741.4638

picture of 1,3-Cyclopentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C9 H2 105.756 H1 C9 C7 111.957
H1 C9 C8 111.957 H2 C9 C7 111.957
H2 C9 C8 111.957 H3 C7 C9 124.036
H3 C7 C10 126.934 H4 C8 C9 124.036
H4 C8 C11 126.934 H5 C10 C7 126.243
H5 C10 C11 124.502 H6 C11 C8 126.243
H6 C11 C10 124.502 C7 C9 C8 103.432
C7 C10 C11 109.255 C8 C11 C10 109.255
C9 C7 C10 109.029 C9 C8 C11 109.029
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.161      
2 H 0.161      
3 H 0.123      
4 H 0.123      
5 H 0.120      
6 H 0.120      
7 C -0.136      
8 C -0.136      
9 C -0.316      
10 C -0.110      
11 C -0.110      


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


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.685 0.000 0.000
y 0.000 7.954 0.000
z 0.000 0.000 8.843


<r2> (average value of r2) Å2
<r2> 92.228
(<r2>)1/2 9.604