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

using model chemistry: B3LYP/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 B3LYP/6-31G**
 hartrees
Energy at 0K-194.110690
Energy at 298.15K-194.116905
HF Energy-194.110690
Nuclear repulsion energy156.461674
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/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 3242 3115 2.67      
2 A1 3217 3091 14.26      
3 A1 3026 2908 10.98      
4 A1 1573 1511 1.96      
5 A1 1429 1373 4.11      
6 A1 1412 1356 13.53      
7 A1 1137 1092 0.13      
8 A1 1020 980 0.03      
9 A1 930 893 9.15      
10 A1 812 780 0.03      
11 A2 1124 1080 0.00      
12 A2 959 921 0.00      
13 A2 714 686 0.00      
14 A2 522 502 0.00      
15 B1 3052 2932 11.42      
16 B1 953 916 0.13      
17 B1 923 887 18.95      
18 B1 687 660 52.21      
19 B1 346 333 9.62      
20 B2 3236 3109 24.43      
21 B2 3207 3081 4.96      
22 B2 1659 1594 0.28      
23 B2 1327 1275 0.77      
24 B2 1274 1224 1.49      
25 B2 1121 1077 1.82      
26 B2 974 936 10.84      
27 B2 813 781 6.20      

Unscaled Zero Point Vibrational Energy (zpe) 20343.9 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 19546.4 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/6-31G**
ABC
0.28179 0.27406 0.14258

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.877 0.000 1.881
H2 -0.877 0.000 1.881
H3 0.000 2.213 0.611
H4 0.000 -2.213 0.611
H5 0.000 1.347 -1.886
H6 0.000 -1.347 -1.886
C7 0.000 1.181 0.282
C8 0.000 -1.181 0.282
C9 0.000 0.000 1.217
C10 0.000 0.735 -0.991
C11 0.000 -0.735 -0.991

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75402.69832.69834.09584.09582.17292.17291.10023.09153.0915
H21.75402.69832.69834.09584.09582.17292.17291.10023.09153.0915
H32.69832.69834.42622.64274.34851.08333.40992.29462.17963.3549
H42.69832.69834.42624.34852.64273.40991.08332.29463.35492.1796
H54.09584.09582.64274.34852.69442.17433.33043.38271.08462.2663
H64.09584.09584.34852.64272.69443.33042.17433.38272.26631.0846
C72.17292.17291.08333.40992.17433.33042.36191.50621.34872.3000
C82.17292.17293.40991.08333.33042.17432.36191.50622.30001.3487
C91.10021.10022.29462.29463.38273.38271.50621.50622.32682.3268
C103.09153.09152.17963.35491.08462.26631.34872.30002.32681.4696
C113.09153.09153.35492.17962.26631.08462.30001.34872.32681.4696

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 105.711 H1 C9 C7 112.012
H1 C9 C8 112.012 H2 C9 C7 112.012
H2 C9 C8 112.012 H3 C7 C9 123.959
H3 C7 C10 126.988 H4 C8 C9 123.959
H4 C8 C11 126.988 H5 C10 C7 126.309
H5 C10 C11 124.375 H6 C11 C8 126.309
H6 C11 C10 124.375 C7 C9 C8 103.264
C7 C10 C11 109.316 C8 C11 C10 109.316
C9 C7 C10 109.052 C9 C8 C11 109.052
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.128      
2 H 0.128      
3 H 0.084      
4 H 0.084      
5 H 0.080      
6 H 0.080      
7 C -0.098      
8 C -0.098      
9 C -0.249      
10 C -0.070      
11 C -0.070      


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 0.452 0.452
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 3.682 0.000 0.000
y 0.000 8.034 0.000
z 0.000 0.000 8.896


<r2> (average value of r2) Å2
<r2> 92.909
(<r2>)1/2 9.639