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

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-193.845358
Energy at 298.15K-193.851434
HF Energy-193.845358
Nuclear repulsion energy155.893623
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/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 3181 3137 2.13      
2 A1 3155 3111 13.46      
3 A1 2965 2924 7.42      
4 A1 1522 1501 2.16      
5 A1 1378 1360 0.13      
6 A1 1360 1342 21.33      
7 A1 1102 1087 0.14      
8 A1 1013 999 0.01      
9 A1 920 907 10.64      
10 A1 789 778 0.04      
11 A2 1078 1063 0.00      
12 A2 917 904 0.00      
13 A2 680 670 0.00      
14 A2 506 499 0.00      
15 B1 2996 2955 6.58      
16 B1 909 896 1.48      
17 B1 877 865 17.68      
18 B1 664 654 53.02      
19 B1 331 327 12.48      
20 B2 3175 3131 20.05      
21 B2 3144 3101 5.35      
22 B2 1606 1584 0.26      
23 B2 1283 1265 1.14      
24 B2 1225 1208 1.57      
25 B2 1084 1069 2.56      
26 B2 957 944 11.98      
27 B2 788 777 6.51      

Unscaled Zero Point Vibrational Energy (zpe) 19799.4 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 19528.1 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/6-31G**
ABC
0.27947 0.27288 0.14170

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.882 0.000 1.888
H2 -0.882 0.000 1.888
H3 0.000 2.223 0.620
H4 0.000 -2.223 0.620
H5 0.000 1.351 -1.898
H6 0.000 -1.351 -1.898
C7 0.000 1.184 0.287
C8 0.000 -1.184 0.287
C9 0.000 0.000 1.216
C10 0.000 0.734 -0.996
C11 0.000 -0.734 -0.996

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.76332.70682.70684.11554.11552.17812.17811.10843.10433.1043
H21.76332.70682.70684.11554.11552.17812.17811.10843.10433.1043
H32.70682.70684.44572.66444.37201.09113.42312.30152.19763.3697
H42.70682.70684.44574.37202.66443.42311.09112.30153.36972.1976
H54.11554.11552.66444.37202.70272.19093.34663.39481.09262.2718
H64.11554.11554.37202.66442.70273.34662.19093.39482.27181.0926
C72.17812.17811.09113.42312.19093.34662.36791.50541.35972.3075
C82.17812.17813.42311.09113.34662.19092.36791.50542.30751.3597
C91.10841.10842.30152.30153.39483.39481.50541.50542.33132.3313
C103.10433.10432.19763.36971.09262.27181.35972.30752.33131.4679
C113.10433.10433.36972.19762.27181.09262.30751.35972.33131.4679

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 105.389 H1 C9 C7 111.982
H1 C9 C8 111.982 H2 C9 C7 111.982
H2 C9 C8 111.982 H3 C7 C9 124.067
H3 C7 C10 127.119 H4 C8 C9 124.067
H4 C8 C11 127.119 H5 C10 C7 126.262
H5 C10 C11 124.409 H6 C11 C8 126.262
H6 C11 C10 124.409 C7 C9 C8 103.715
C7 C10 C11 109.329 C8 C11 C10 109.329
C9 C7 C10 108.814 C9 C8 C11 108.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.148      
2 H 0.148      
3 H 0.096      
4 H 0.096      
5 H 0.091      
6 H 0.091      
7 C -0.109      
8 C -0.109      
9 C -0.292      
10 C -0.081      
11 C -0.081      


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 0.534 0.534
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 3.750 0.000 0.000
y 0.000 8.335 0.000
z 0.000 0.000 9.070


<r2> (average value of r2) Å2
<r2> 93.363
(<r2>)1/2 9.662