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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-194.028938
Energy at 298.15K-194.035138
HF Energy-194.028938
Nuclear repulsion energy156.689271
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 B3PW91/6-31G*
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 3257 3116 2.87      
2 A1 3232 3092 14.92      
3 A1 3040 2909 9.40      
4 A1 1584 1515 2.03      
5 A1 1438 1376 6.06      
6 A1 1419 1358 15.08      
7 A1 1140 1091 0.18      
8 A1 1033 989 0.03      
9 A1 943 902 10.57      
10 A1 811 776 0.03      
11 A2 1131 1082 0.00      
12 A2 955 914 0.00      
13 A2 711 680 0.00      
14 A2 521 498 0.00      
15 B1 3071 2938 9.10      
16 B1 949 908 0.29      
17 B1 922 882 21.03      
18 B1 686 657 63.87      
19 B1 343 328 11.40      
20 B2 3251 3110 24.81      
21 B2 3221 3081 4.42      
22 B2 1668 1596 0.40      
23 B2 1333 1275 1.46      
24 B2 1281 1226 1.78      
25 B2 1122 1074 2.43      
26 B2 987 945 12.27      
27 B2 811 776 6.77      

Unscaled Zero Point Vibrational Energy (zpe) 20430.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19545.7 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 B3PW91/6-31G*
ABC
0.28255 0.27519 0.14309

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.878 0.000 1.878
H2 -0.878 0.000 1.878
H3 0.000 2.211 0.613
H4 0.000 -2.211 0.613
H5 0.000 1.347 -1.886
H6 0.000 -1.347 -1.886
C7 0.000 1.178 0.283
C8 0.000 -1.178 0.283
C9 0.000 0.000 1.213
C10 0.000 0.733 -0.990
C11 0.000 -0.733 -0.990

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75532.69452.69454.09244.09242.16862.16861.10113.08753.0875
H21.75532.69452.69454.09244.09242.16862.16861.10113.08753.0875
H32.69452.69454.42222.64354.34721.08443.40512.29122.18033.3519
H42.69452.69454.42224.34722.64353.40511.08442.29123.35192.1803
H54.09244.09242.64354.34722.69322.17483.32803.37861.08572.2641
H64.09244.09244.34722.64352.69323.32802.17483.37862.26411.0857
C72.16862.16861.08443.40512.17483.32802.35601.50111.34842.2960
C82.16862.16863.40511.08443.32802.17482.35601.50112.29601.3484
C91.10111.10112.29122.29123.37863.37861.50111.50112.32182.3218
C103.08753.08752.18033.35191.08572.26411.34842.29602.32181.4657
C113.08753.08753.35192.18032.26411.08572.29601.34842.32181.4657

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 105.703 H1 C9 C7 111.979
H1 C9 C8 111.979 H2 C9 C7 111.979
H2 C9 C8 111.979 H3 C7 C9 123.994
H3 C7 C10 126.986 H4 C8 C9 123.994
H4 C8 C11 126.986 H5 C10 C7 126.296
H5 C10 C11 124.426 H6 C11 C8 126.296
H6 C11 C10 124.426 C7 C9 C8 103.403
C7 C10 C11 109.278 C8 C11 C10 109.278
C9 C7 C10 109.020 C9 C8 C11 109.020
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.196      
2 H 0.196      
3 H 0.160      
4 H 0.160      
5 H 0.157      
6 H 0.157      
7 C -0.165      
8 C -0.165      
9 C -0.403      
10 C -0.147      
11 C -0.147      


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 0.475 0.475
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 3.641 0.000 0.000
y 0.000 7.957 0.000
z 0.000 0.000 8.829


<r2> (average value of r2) Å2
<r2> 92.516
(<r2>)1/2 9.619