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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-193.038275
Energy at 298.15K-193.044557
HF Energy-193.038275
Nuclear repulsion energy155.807989
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3264 3149 3.35      
2 A1 3235 3121 6.99      
3 A1 3045 2938 4.61      
4 A1 1551 1497 0.23      
5 A1 1470 1419 15.23      
6 A1 1404 1354 9.26      
7 A1 1161 1120 0.35      
8 A1 993 958 0.03      
9 A1 902 871 10.01      
10 A1 843 813 0.00      
11 A2 1176 1135 0.00      
12 A2 976 942 0.00      
13 A2 731 705 0.00      
14 A2 535 516 0.00      
15 B1 3074 2966 6.80      
16 B1 973 939 0.01      
17 B1 932 899 20.80      
18 B1 690 666 87.03      
19 B1 354 342 13.13      
20 B2 3253 3138 18.38      
21 B2 3226 3112 2.66      
22 B2 1637 1580 1.51      
23 B2 1345 1298 0.18      
24 B2 1267 1222 7.56      
25 B2 1145 1105 1.72      
26 B2 971 937 14.10      
27 B2 840 811 3.35      

Unscaled Zero Point Vibrational Energy (zpe) 20495.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 19776.3 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/3-21G
ABC
0.27947 0.27093 0.14122

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.887 0.000 1.878
H2 -0.887 0.000 1.878
H3 0.000 2.217 0.611
H4 0.000 -2.217 0.611
H5 0.000 1.347 -1.889
H6 0.000 -1.347 -1.889
C7 0.000 1.189 0.279
C8 0.000 -1.189 0.279
C9 0.000 0.000 1.229
C10 0.000 0.741 -0.994
C11 0.000 -0.741 -0.994

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77472.70322.70324.09764.09762.18062.18061.09923.09553.0955
H21.77472.70322.70324.09764.09762.18062.18061.09923.09553.0955
H32.70322.70324.43382.64714.35301.08043.42162.30142.18053.3648
H42.70322.70324.43384.35302.64713.42161.08042.30143.36482.1805
H54.09764.09762.64714.35302.69322.17433.33613.39641.08112.2711
H64.09764.09764.35302.64712.69323.33612.17433.39642.27111.0811
C72.18062.18061.08043.42162.17433.33612.37721.52131.34982.3115
C82.18062.18063.42161.08043.33612.17432.37721.52132.31151.3498
C91.09921.09922.30142.30143.39643.39641.52131.52132.34292.3429
C103.09553.09552.18053.36481.08112.27111.34982.31152.34291.4813
C113.09553.09553.36482.18052.27111.08112.31151.34982.34291.4813

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 107.651 H1 C9 C7 111.617
H1 C9 C8 111.617 H2 C9 C7 111.617
H2 C9 C8 111.617 H3 C7 C9 123.515
H3 C7 C10 127.250 H4 C8 C9 123.515
H4 C8 C11 127.250 H5 C10 C7 126.524
H5 C10 C11 124.092 H6 C11 C8 126.524
H6 C11 C10 124.092 C7 C9 C8 102.760
C7 C10 C11 109.384 C8 C11 C10 109.384
C9 C7 C10 109.236 C9 C8 C11 109.236
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.224      
2 H 0.224      
3 H 0.180      
4 H 0.180      
5 H 0.178      
6 H 0.178      
7 C -0.169      
8 C -0.169      
9 C -0.462      
10 C -0.183      
11 C -0.183      


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 0.484 0.484
CHELPG        
AIM        
ESP 0.003 0.000 0.505 0.505


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 3.049 0.000 0.000
y 0.000 7.462 0.000
z 0.000 0.000 8.384


<r2> (average value of r2) Å2
<r2> 93.648
(<r2>)1/2 9.677