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

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-191.486619
Energy at 298.15K-191.492532
HF Energy-191.486619
Nuclear repulsion energy154.298961
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 PBEPBE/STO-3G
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 3442 3144 0.01      
2 A1 3408 3114 13.11      
3 A1 3239 2959 2.54      
4 A1 1642 1500 1.77      
5 A1 1554 1419 7.75      
6 A1 1465 1338 9.41      
7 A1 1165 1064 0.13      
8 A1 1058 966 0.85      
9 A1 969 885 4.50      
10 A1 827 756 0.11      
11 A2 1179 1077 0.00      
12 A2 963 880 0.00      
13 A2 731 668 0.00      
14 A2 528 482 0.00      
15 B1 3329 3042 0.20      
16 B1 972 888 0.94      
17 B1 957 875 1.12      
18 B1 697 637 37.60      
19 B1 355 324 9.10      
20 B2 3431 3135 3.46      
21 B2 3399 3106 6.92      
22 B2 1733 1583 4.59      
23 B2 1374 1255 3.25      
24 B2 1322 1208 4.18      
25 B2 1147 1048 0.14      
26 B2 1028 939 5.93      
27 B2 832 760 4.34      

Unscaled Zero Point Vibrational Energy (zpe) 21372.1 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 19525.6 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 PBEPBE/STO-3G
ABC
0.27375 0.26672 0.13868

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.894 0.000 1.905
H2 -0.894 0.000 1.905
H3 0.000 2.244 0.624
H4 0.000 -2.244 0.624
H5 0.000 1.361 -1.918
H6 0.000 -1.361 -1.918
C7 0.000 1.197 0.281
C8 0.000 -1.197 0.281
C9 0.000 0.000 1.240
C10 0.000 0.745 -1.003
C11 0.000 -0.745 -1.003

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.78892.73422.73424.15464.15462.20622.20621.11443.13183.1318
H21.78892.73422.73424.15464.15462.20622.20621.11443.13183.1318
H32.73422.73424.48792.69064.41031.10153.45792.32702.21193.4030
H42.73422.73424.48794.41032.69063.45791.10152.32703.40302.2119
H54.15464.15462.69064.41032.72102.20513.37293.43811.10252.2957
H64.15464.15464.41032.69062.72103.37292.20513.43812.29571.1025
C72.20622.20621.10153.45792.20513.37292.39401.53341.36152.3283
C82.20622.20623.45791.10153.37292.20512.39401.53342.32831.3615
C91.11441.11442.32702.32703.43813.43811.53341.53342.36322.3632
C103.13183.13182.21193.40301.10252.29571.36152.32832.36321.4901
C113.13183.13183.40302.21192.29571.10252.32831.36152.36321.4901

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 106.756 H1 C9 C7 111.891
H1 C9 C8 111.891 H2 C9 C7 111.891
H2 C9 C8 111.891 H3 C7 C9 123.210
H3 C7 C10 127.494 H4 C8 C9 123.210
H4 C8 C11 127.494 H5 C10 C7 126.681
H5 C10 C11 123.932 H6 C11 C8 126.681
H6 C11 C10 123.932 C7 C9 C8 102.635
C7 C10 C11 109.386 C8 C11 C10 109.386
C9 C7 C10 109.296 C9 C8 C11 109.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.098      
2 H 0.098      
3 H 0.081      
4 H 0.081      
5 H 0.082      
6 H 0.082      
7 C -0.086      
8 C -0.086      
9 C -0.156      
10 C -0.096      
11 C -0.096      


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 0.530 0.530
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 1.550 0.000 0.000
y 0.000 4.905 0.000
z 0.000 0.000 5.487


<r2> (average value of r2) Å2
<r2> 93.830
(<r2>)1/2 9.687