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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-193.836188
Energy at 298.15K-193.842253
HF Energy-193.836188
Nuclear repulsion energy155.826256
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 PBEPBEultrafine/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 3179 3126 2.33      
2 A1 3153 3101 15.99      
3 A1 2963 2914 8.21      
4 A1 1525 1500 1.88      
5 A1 1390 1367 4.50      
6 A1 1376 1354 16.87      
7 A1 1105 1087 0.15      
8 A1 1014 997 0.01      
9 A1 921 906 10.56      
10 A1 790 777 0.04      
11 A2 1086 1068 0.00      
12 A2 913 898 0.00      
13 A2 676 665 0.00      
14 A2 505 496 0.00      
15 B1 2991 2942 7.53      
16 B1 906 891 3.11      
17 B1 883 869 14.72      
18 B1 664 653 57.32      
19 B1 334 328 12.58      
20 B2 3173 3120 23.48      
21 B2 3142 3090 5.43      
22 B2 1610 1583 0.31      
23 B2 1288 1267 1.18      
24 B2 1233 1212 1.73      
25 B2 1088 1070 2.61      
26 B2 962 946 11.88      
27 B2 789 776 6.42      

Unscaled Zero Point Vibrational Energy (zpe) 19828.2 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 19501.0 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 PBEPBEultrafine/6-31G*
ABC
0.27925 0.27264 0.14159

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.888 0.000 1.879
H2 -0.888 0.000 1.879
H3 0.000 2.224 0.631
H4 0.000 -2.224 0.631
H5 0.000 1.344 -1.904
H6 0.000 -1.344 -1.904
C7 0.000 1.188 0.286
C8 0.000 -1.188 0.286
C9 0.000 0.000 1.217
C10 0.000 0.737 -0.995
C11 0.000 -0.737 -0.995

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77632.70082.70084.11224.11222.17712.17711.10833.09733.0973
H21.77632.70082.70084.11224.11222.17712.17711.10833.09733.0973
H32.70082.70084.44832.68354.37701.09263.42922.29992.20383.3777
H42.70082.70084.44834.37702.68353.42921.09262.29993.37772.2038
H54.11224.11222.68354.37702.68792.19523.34713.39771.09342.2704
H64.11224.11224.37702.68352.68793.34712.19523.39772.27041.0934
C72.17712.17711.09263.42922.19523.34712.37521.50901.35762.3112
C82.17712.17713.42921.09263.34712.19522.37521.50902.31121.3576
C91.10831.10832.29992.29993.39773.39771.50901.50902.33092.3309
C103.09733.09732.20383.37771.09342.27041.35762.31122.33091.4730
C113.09733.09733.37772.20382.27041.09342.31121.35762.33091.4730

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 106.526 H1 C9 C7 111.656
H1 C9 C8 111.656 H2 C9 C7 111.656
H2 C9 C8 111.656 H3 C7 C9 123.473
H3 C7 C10 127.838 H4 C8 C9 123.473
H4 C8 C11 127.838 H5 C10 C7 126.844
H5 C10 C11 123.750 H6 C11 C8 126.844
H6 C11 C10 123.750 C7 C9 C8 103.811
C7 C10 C11 109.406 C8 C11 C10 109.406
C9 C7 C10 108.689 C9 C8 C11 108.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.185      
2 H 0.185      
3 H 0.137      
4 H 0.137      
5 H 0.133      
6 H 0.133      
7 C -0.141      
8 C -0.141      
9 C -0.385      
10 C -0.122      
11 C -0.122      


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 0.519 0.519
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.134 0.000 0.000
y 0.000 -28.166 -0.009
z 0.000 -0.009 -26.648
Traceless
 xyz
x -4.726 0.000 0.000
y 0.000 1.225 -0.009
z 0.000 -0.009 3.501
Polar
3z2-r27.003
x2-y2-3.968
xy0.000
xz0.000
yz-0.009


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.692 0.000 0.000
y 0.000 8.258 -0.001
z 0.000 -0.001 8.999


<r2> (average value of r2) Å2
<r2> 93.423
(<r2>)1/2 9.666