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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-194.069639
Energy at 298.15K-194.075868
HF Energy-194.069639
Nuclear repulsion energy156.864762
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 mPW1PW91/6-31+G**
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 3274 3116 2.30      
2 A1 3249 3092 10.55      
3 A1 3056 2909 7.46      
4 A1 1582 1505 2.22      
5 A1 1425 1356 0.00      
6 A1 1407 1339 28.20      
7 A1 1138 1084 0.32      
8 A1 1036 986 0.23      
9 A1 947 901 12.74      
10 A1 814 774 0.01      
11 A2 1125 1071 0.00      
12 A2 961 915 0.00      
13 A2 719 685 0.00      
14 A2 524 499 0.00      
15 B1 3091 2942 4.52      
16 B1 961 915 0.10      
17 B1 917 873 39.13      
18 B1 685 652 89.55      
19 B1 340 324 9.43      
20 B2 3267 3110 17.08      
21 B2 3239 3083 3.26      
22 B2 1663 1583 0.02      
23 B2 1333 1269 1.68      
24 B2 1279 1217 1.73      
25 B2 1120 1066 3.29      
26 B2 987 939 16.69      
27 B2 815 776 7.56      

Unscaled Zero Point Vibrational Energy (zpe) 20475.8 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 19488.8 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 mPW1PW91/6-31+G**
ABC
0.28300 0.27596 0.14340

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.877 0.000 1.874
H2 -0.877 0.000 1.874
H3 0.000 2.208 0.611
H4 0.000 -2.208 0.611
H5 0.000 1.347 -1.882
H6 0.000 -1.347 -1.882
C7 0.000 1.176 0.284
C8 0.000 -1.176 0.284
C9 0.000 0.000 1.212
C10 0.000 0.732 -0.990
C11 0.000 -0.732 -0.990

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75382.69072.69074.08504.08502.16352.16351.09873.08313.0831
H21.75382.69072.69074.08504.08502.16352.16351.09873.08313.0831
H32.69072.69074.41612.63694.34171.08253.39992.28842.17743.3473
H42.69072.69074.41614.34172.63693.39991.08252.28843.34732.1774
H54.08504.08502.63694.34172.69402.17213.32493.37411.08342.2621
H64.08504.08504.34172.63692.69403.32492.17213.37412.26211.0834
C72.16352.16351.08253.39992.17213.32492.35231.49831.34882.2940
C82.16352.16353.39991.08253.32492.17212.35231.49832.29401.3488
C91.09871.09872.28842.28843.37413.37411.49831.49832.32022.3202
C103.08313.08312.17743.34731.08342.26211.34882.29402.32021.4637
C113.08313.08313.34732.17742.26211.08342.29401.34882.32021.4637

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 105.907 H1 C9 C7 111.915
H1 C9 C8 111.915 H2 C9 C7 111.915
H2 C9 C8 111.915 H3 C7 C9 124.137
H3 C7 C10 126.814 H4 C8 C9 124.137
H4 C8 C11 126.814 H5 C10 C7 126.170
H5 C10 C11 124.599 H6 C11 C8 126.170
H6 C11 C10 124.599 C7 C9 C8 103.438
C7 C10 C11 109.232 C8 C11 C10 109.232
C9 C7 C10 109.049 C9 C8 C11 109.049
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.194      
2 H 0.194      
3 H 0.160      
4 H 0.160      
5 H 0.156      
6 H 0.156      
7 C -0.083      
8 C -0.083      
9 C -0.551      
10 C -0.151      
11 C -0.151      


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 0.543 0.543
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 5.678 0.000 0.000
y 0.000 8.921 0.000
z 0.000 0.000 9.690


<r2> (average value of r2) Å2
<r2> 92.858
(<r2>)1/2 9.636