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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-193.956900
Energy at 298.15K-193.963071
HF Energy-193.956900
Nuclear repulsion energy154.751661
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 BLYP/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 3182 3158 5.52      
2 A1 3152 3128 18.63      
3 A1 2949 2927 13.26      
4 A1 1505 1494 0.67      
5 A1 1426 1415 14.88      
6 A1 1379 1368 6.10      
7 A1 1125 1117 0.19      
8 A1 995 988 0.00      
9 A1 899 892 9.89      
10 A1 810 804 0.01      
11 A2 1105 1096 0.00      
12 A2 938 931 0.00      
13 A2 702 696 0.00      
14 A2 518 514 0.00      
15 B1 2973 2950 15.71      
16 B1 927 920 0.10      
17 B1 918 911 14.68      
18 B1 679 674 67.92      
19 B1 354 351 11.64      
20 B2 3171 3147 38.19      
21 B2 3141 3117 4.23      
22 B2 1591 1579 0.43      
23 B2 1308 1298 0.28      
24 B2 1236 1227 3.90      
25 B2 1112 1104 1.61      
26 B2 957 950 11.62      
27 B2 810 804 4.21      

Unscaled Zero Point Vibrational Energy (zpe) 19931.6 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 19780.2 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 BLYP/6-31G
ABC
0.27489 0.26853 0.13938

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.884 0.000 1.902
H2 -0.884 0.000 1.902
H3 0.000 2.233 0.618
H4 0.000 -2.233 0.618
H5 0.000 1.354 -1.906
H6 0.000 -1.354 -1.906
C7 0.000 1.195 0.285
C8 0.000 -1.195 0.285
C9 0.000 0.000 1.233
C10 0.000 0.741 -1.004
C11 0.000 -0.741 -1.004

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.76872.72312.72314.13774.13772.19682.19681.10903.12683.1268
H21.76872.72312.72314.13774.13772.19682.19681.10903.12683.1268
H32.72312.72314.46522.67314.38581.08983.44382.31582.20343.3874
H42.72312.72314.46524.38582.67313.44381.08982.31583.38742.2034
H54.13774.13772.67314.38582.70752.19713.36133.41891.09082.2811
H64.13774.13774.38582.67312.70753.36132.19713.41892.28111.0908
C72.19682.19681.08983.44382.19713.36132.39001.52551.36642.3259
C82.19682.19683.44381.08983.36132.19712.39001.52552.32591.3664
C91.10901.10902.31582.31583.41893.41891.52551.52552.35662.3566
C103.12683.12682.20343.38741.09082.28111.36642.32592.35661.4825
C113.12683.12683.38742.20342.28111.09082.32591.36642.35661.4825

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 105.774 H1 C9 C7 112.027
H1 C9 C8 112.027 H2 C9 C7 112.027
H2 C9 C8 112.027 H3 C7 C9 123.767
H3 C7 C10 127.199 H4 C8 C9 123.767
H4 C8 C11 127.199 H5 C10 C7 126.440
H5 C10 C11 124.164 H6 C11 C8 126.440
H6 C11 C10 124.164 C7 C9 C8 103.141
C7 C10 C11 109.396 C8 C11 C10 109.396
C9 C7 C10 109.033 C9 C8 C11 109.033
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.147      
2 H 0.147      
3 H 0.098      
4 H 0.098      
5 H 0.095      
6 H 0.095      
7 C -0.100      
8 C -0.100      
9 C -0.319      
10 C -0.080      
11 C -0.080      


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 0.509 0.509
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 3.490 0.000 0.000
y 0.000 8.177 0.000
z 0.000 0.000 8.990


<r2> (average value of r2) Å2
<r2> 94.724
(<r2>)1/2 9.733