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

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-31.803670
Energy at 298.15K-31.809791
Nuclear repulsion energy80.248523
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 B3LYP/CEP-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 3222 3112 2.72      
2 A1 3192 3082 14.07      
3 A1 3029 2926 16.49      
4 A1 1562 1509 1.75      
5 A1 1421 1372 9.35      
6 A1 1390 1342 12.04      
7 A1 1112 1074 0.30      
8 A1 1014 979 0.55      
9 A1 921 889 12.61      
10 A1 787 760 0.01      
11 A2 1115 1076 0.00      
12 A2 957 924 0.00      
13 A2 715 691 0.00      
14 A2 503 486 0.00      
15 B1 3062 2957 23.80      
16 B1 951 919 0.44      
17 B1 901 870 52.61      
18 B1 685 662 109.35      
19 B1 329 318 11.84      
20 B2 3215 3105 25.91      
21 B2 3179 3070 3.70      
22 B2 1638 1581 0.02      
23 B2 1306 1261 1.88      
24 B2 1254 1211 0.65      
25 B2 1093 1056 3.15      
26 B2 966 932 15.32      
27 B2 789 762 7.73      

Unscaled Zero Point Vibrational Energy (zpe) 20152.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 19461.4 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 B3LYP/CEP-31G*
ABC
0.27366 0.26756 0.13882

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.887 0.000 1.897
H2 -0.887 0.000 1.897
H3 0.000 2.237 0.619
H4 0.000 -2.237 0.619
H5 0.000 1.365 -1.908
H6 0.000 -1.365 -1.908
C7 0.000 1.196 0.290
C8 0.000 -1.196 0.290
C9 0.000 0.000 1.234
C10 0.000 0.744 -1.008
C11 0.000 -0.744 -1.008

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77442.72442.72444.13844.13842.19072.19071.10793.12743.1274
H21.77442.72442.72444.13844.13842.19072.19071.10793.12743.1274
H32.72442.72444.47332.67304.39981.09193.44802.31952.20863.3958
H42.72442.72444.47334.39982.67303.44801.09192.31953.39582.2086
H54.13844.13842.67304.39982.73012.20423.37443.42491.09322.2925
H64.13844.13844.39982.67302.73013.37442.20423.42492.29251.0932
C72.19072.19071.09193.44802.20423.37442.39121.52301.37472.3337
C82.19072.19073.44801.09193.37442.20422.39121.52302.33371.3747
C91.10791.10792.31952.31953.42493.42491.52301.52302.36192.3619
C103.12743.12742.20863.39581.09322.29251.37472.33372.36191.4874
C113.12743.12743.39582.20862.29251.09322.33371.37472.36191.4874

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 106.414 H1 C9 C7 111.779
H1 C9 C8 111.779 H2 C9 C7 111.779
H2 C9 C8 111.779 H3 C7 C9 124.170
H3 C7 C10 126.745 H4 C8 C9 124.170
H4 C8 C11 126.745 H5 C10 C7 126.167
H5 C10 C11 124.640 H6 C11 C8 126.167
H6 C11 C10 124.640 C7 C9 C8 103.443
C7 C10 C11 109.193 C8 C11 C10 109.193
C9 C7 C10 109.085 C9 C8 C11 109.085
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.149      
2 H 0.149      
3 H 0.305      
4 H 0.305      
5 H 0.305      
6 H 0.305      
7 C -0.368      
8 C -0.368      
9 C -0.219      
10 C -0.281      
11 C -0.281      


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 0.485 0.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.823 0.000 0.000
y 0.000 -27.832 0.000
z 0.000 0.000 -26.260
Traceless
 xyz
x -5.777 0.000 0.000
y 0.000 1.709 0.000
z 0.000 0.000 4.067
Polar
3z2-r28.135
x2-y2-4.991
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.170 0.000 0.000
y 0.000 8.415 0.000
z 0.000 0.000 9.206


<r2> (average value of r2) Å2
<r2> 79.394
(<r2>)1/2 8.910