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

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-192.837277
Energy at 298.15K-192.843809
HF Energy-192.837277
Nuclear repulsion energy157.427219
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 HF/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 3373 3065 4.86      
2 A1 3346 3040 14.70      
3 A1 3159 2870 23.42      
4 A1 1717 1560 1.62      
5 A1 1553 1411 4.57      
6 A1 1514 1375 14.26      
7 A1 1218 1106 0.27      
8 A1 1058 961 0.55      
9 A1 976 887 8.80      
10 A1 866 787 0.00      
11 A2 1241 1128 0.00      
12 A2 1070 972 0.00      
13 A2 807 733 0.00      
14 A2 559 508 0.00      
15 B1 3185 2893 23.69      
16 B1 1081 982 2.40      
17 B1 1023 929 38.29      
18 B1 745 677 85.40      
19 B1 379 344 5.31      
20 B2 3365 3057 33.33      
21 B2 3337 3032 1.53      
22 B2 1792 1628 0.21      
23 B2 1437 1306 1.51      
24 B2 1393 1265 1.53      
25 B2 1201 1091 1.47      
26 B2 1029 935 14.16      
27 B2 868 788 6.80      

Unscaled Zero Point Vibrational Energy (zpe) 21645.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 19664.7 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 HF/6-311G**
ABC
0.28627 0.27570 0.14415

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.875 0.000 1.865
H2 -0.875 0.000 1.865
H3 0.000 2.199 0.596
H4 0.000 -2.199 0.596
H5 0.000 1.347 -1.866
H6 0.000 -1.347 -1.866
C7 0.000 1.174 0.274
C8 0.000 -1.174 0.274
C9 0.000 0.000 1.216
C10 0.000 0.739 -0.981
C11 0.000 -0.739 -0.981

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75012.68542.68544.06204.06202.16262.16261.08933.06723.0672
H21.75012.68542.68544.06204.06202.16262.16261.08933.06723.0672
H32.68542.68544.39772.60524.31631.07373.38872.28472.14863.3337
H42.68542.68544.39774.31632.60523.38871.07372.28473.33372.1486
H54.06204.06202.60524.31632.69312.14693.30693.36361.07422.2655
H64.06204.06204.31632.60522.69313.30692.14693.36362.26551.0742
C72.16262.16261.07373.38872.14693.30692.34901.50581.32792.2877
C82.16262.16263.38871.07373.30692.14692.34901.50582.28771.3279
C91.08931.08932.28472.28473.36363.36361.50581.50582.31752.3175
C103.06723.06722.14863.33371.07422.26551.32792.28772.31751.4773
C113.06723.06723.33372.14862.26551.07422.28771.32792.31751.4773

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 106.895 H1 C9 C7 111.882
H1 C9 C8 111.882 H2 C9 C7 111.882
H2 C9 C8 111.882 H3 C7 C9 123.814
H3 C7 C10 126.606 H4 C8 C9 123.814
H4 C8 C11 126.606 H5 C10 C7 126.374
H5 C10 C11 124.465 H6 C11 C8 126.374
H6 C11 C10 124.465 C7 C9 C8 102.518
C7 C10 C11 109.161 C8 C11 C10 109.161
C9 C7 C10 109.580 C9 C8 C11 109.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.121      
2 H 0.121      
3 H 0.101      
4 H 0.101      
5 H 0.097      
6 H 0.097      
7 C -0.157      
8 C -0.157      
9 C -0.126      
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 0.349 0.349
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 4.320 0.000 0.000
y 0.000 7.808 0.000
z 0.000 0.000 9.127


<r2> (average value of r2) Å2
<r2> 92.472
(<r2>)1/2 9.616