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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-194.044615
Energy at 298.15K-194.050836
HF Energy-194.044615
Nuclear repulsion energy156.929417
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 B3PW91/6-31G(2df,p)
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 3247 3121 2.33      
2 A1 3220 3095 11.61      
3 A1 3028 2911 8.45      
4 A1 1568 1508 1.99      
5 A1 1409 1354 0.01      
6 A1 1393 1339 22.37      
7 A1 1130 1087 0.11      
8 A1 1028 988 0.07      
9 A1 938 902 11.07      
10 A1 809 778 0.06      
11 A2 1114 1071 0.00      
12 A2 961 924 0.00      
13 A2 719 692 0.00      
14 A2 523 503 0.00      
15 B1 3060 2941 6.40      
16 B1 955 918 0.16      
17 B1 915 879 23.34      
18 B1 688 661 51.33      
19 B1 343 330 8.99      
20 B2 3240 3115 19.27      
21 B2 3209 3085 4.36      
22 B2 1651 1588 0.42      
23 B2 1316 1265 1.32      
24 B2 1261 1212 1.69      
25 B2 1113 1070 2.26      
26 B2 979 941 11.66      
27 B2 809 777 6.51      

Unscaled Zero Point Vibrational Energy (zpe) 20311.2 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 19527.2 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 B3PW91/6-31G(2df,p)
ABC
0.28342 0.27603 0.14352

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.876 0.000 1.877
H2 -0.876 0.000 1.877
H3 0.000 2.207 0.613
H4 0.000 -2.207 0.613
H5 0.000 1.344 -1.883
H6 0.000 -1.344 -1.883
C7 0.000 1.176 0.282
C8 0.000 -1.176 0.282
C9 0.000 0.000 1.211
C10 0.000 0.732 -0.988
C11 0.000 -0.732 -0.988

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75192.68952.68954.08764.08762.16672.16671.10013.08403.0840
H21.75192.68952.68954.08764.08762.16672.16671.10013.08403.0840
H32.68952.68954.41362.64134.34031.08253.39922.28642.17713.3469
H42.68952.68954.41364.34032.64133.39921.08252.28643.34692.1771
H54.08764.08762.64134.34032.68762.17143.32233.37351.08392.2606
H64.08764.08764.34032.64132.68763.32232.17143.37352.26061.0839
C72.16672.16671.08253.39922.17143.32232.35251.49911.34552.2924
C82.16672.16673.39921.08253.32232.17142.35251.49912.29241.3455
C91.10011.10012.28642.28643.37353.37351.49911.49912.31812.3181
C103.08403.08402.17713.34691.08392.26061.34552.29242.31811.4642
C113.08403.08403.34692.17712.26061.08392.29241.34552.31811.4642

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 105.550 H1 C9 C7 112.027
H1 C9 C8 112.027 H2 C9 C7 112.027
H2 C9 C8 112.027 H3 C7 C9 123.856
H3 C7 C10 127.105 H4 C8 C9 123.856
H4 C8 C11 127.105 H5 C10 C7 126.367
H5 C10 C11 124.358 H6 C11 C8 126.367
H6 C11 C10 124.358 C7 C9 C8 103.373
C7 C10 C11 109.275 C8 C11 C10 109.275
C9 C7 C10 109.038 C9 C8 C11 109.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.155      
2 H 0.155      
3 H 0.124      
4 H 0.124      
5 H 0.120      
6 H 0.120      
7 C -0.121      
8 C -0.121      
9 C -0.334      
10 C -0.111      
11 C -0.111      


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 0.457 0.457
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 4.160 0.000 0.000
y 0.000 8.186 0.000
z 0.000 0.000 8.978


<r2> (average value of r2) Å2
<r2> 92.267
(<r2>)1/2 9.606