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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-194.102626
Energy at 298.15K-194.108878
HF Energy-194.102626
Nuclear repulsion energy157.180882
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 mPW1PW91/6-311G**
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 3253 3112 2.47      
2 A1 3228 3088 11.22      
3 A1 3043 2911 8.03      
4 A1 1578 1509 1.71      
5 A1 1417 1355 0.08      
6 A1 1401 1340 28.47      
7 A1 1135 1086 0.27      
8 A1 1031 987 0.12      
9 A1 944 903 13.01      
10 A1 819 783 0.01      
11 A2 1128 1079 0.00      
12 A2 966 924 0.00      
13 A2 721 689 0.00      
14 A2 527 504 0.00      
15 B1 3072 2939 7.49      
16 B1 964 923 0.02      
17 B1 916 876 32.84      
18 B1 685 656 76.41      
19 B1 341 326 10.15      
20 B2 3246 3106 18.86      
21 B2 3217 3078 3.36      
22 B2 1661 1589 0.27      
23 B2 1326 1268 1.73      
24 B2 1272 1217 1.91      
25 B2 1114 1066 2.88      
26 B2 985 942 15.38      
27 B2 820 784 6.81      

Unscaled Zero Point Vibrational Energy (zpe) 20403.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19520.0 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 mPW1PW91/6-311G**
ABC
0.28453 0.27668 0.14398

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.876 0.000 1.871
H2 -0.876 0.000 1.871
H3 0.000 2.205 0.609
H4 0.000 -2.205 0.609
H5 0.000 1.345 -1.878
H6 0.000 -1.345 -1.878
C7 0.000 1.174 0.282
C8 0.000 -1.174 0.282
C9 0.000 0.000 1.209
C10 0.000 0.731 -0.987
C11 0.000 -0.731 -0.987

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75172.68712.68714.07764.07762.16122.16121.09753.07673.0767
H21.75172.68712.68714.07764.07762.16122.16121.09753.07673.0767
H32.68712.68714.40932.63054.33411.08103.39472.28502.17143.3415
H42.68712.68714.40934.33412.63053.39471.08102.28503.34152.1714
H54.07764.07762.63054.33412.69082.16613.31843.36741.08212.2600
H64.07764.07764.33412.63052.69083.31842.16613.36742.26001.0821
C72.16122.16121.08103.39472.16613.31842.34861.49641.34342.2892
C82.16122.16123.39471.08103.31842.16612.34861.49642.28921.3434
C91.09751.09752.28502.28503.36743.36741.49641.49642.31452.3145
C103.07673.07672.17143.34151.08212.26001.34342.28922.31451.4630
C113.07673.07673.34152.17142.26001.08212.28921.34342.31451.4630

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 105.886 H1 C9 C7 111.933
H1 C9 C8 111.933 H2 C9 C7 111.933
H2 C9 C8 111.933 H3 C7 C9 124.094
H3 C7 C10 126.846 H4 C8 C9 124.094
H4 C8 C11 126.846 H5 C10 C7 126.187
H5 C10 C11 124.568 H6 C11 C8 126.187
H6 C11 C10 124.568 C7 C9 C8 103.389
C7 C10 C11 109.245 C8 C11 C10 109.245
C9 C7 C10 109.060 C9 C8 C11 109.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.155      
2 H 0.155      
3 H 0.107      
4 H 0.107      
5 H 0.100      
6 H 0.100      
7 C -0.156      
8 C -0.156      
9 C -0.214      
10 C -0.100      
11 C -0.100      


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 0.492 0.492
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 4.401 0.000 0.000
y 0.000 8.383 0.000
z 0.000 0.000 9.261


<r2> (average value of r2) Å2
<r2> 92.349
(<r2>)1/2 9.610