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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-193.985296
Energy at 298.15K-193.991607
HF Energy-193.985296
Nuclear repulsion energy156.183682
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
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 3281 3142 4.83      
2 A1 3250 3112 11.84      
3 A1 3044 2915 8.57      
4 A1 1578 1511 1.55      
5 A1 1457 1395 18.92      
6 A1 1426 1365 9.25      
7 A1 1157 1108 0.25      
8 A1 1039 995 0.00      
9 A1 945 905 12.33      
10 A1 835 799 0.00      
11 A2 1143 1095 0.00      
12 A2 985 943 0.00      
13 A2 739 708 0.00      
14 A2 538 515 0.00      
15 B1 3080 2950 9.78      
16 B1 977 935 0.28      
17 B1 943 903 22.15      
18 B1 702 673 88.96      
19 B1 359 344 13.09      
20 B2 3269 3131 28.45      
21 B2 3239 3102 3.08      
22 B2 1660 1590 0.84      
23 B2 1347 1290 0.76      
24 B2 1289 1235 5.45      
25 B2 1143 1094 2.21      
26 B2 1002 960 14.36      
27 B2 837 801 5.48      

Unscaled Zero Point Vibrational Energy (zpe) 20631.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 19758.4 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
ABC
0.28005 0.27370 0.14206

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.879 0.000 1.883
H2 -0.879 0.000 1.883
H3 0.000 2.213 0.614
H4 0.000 -2.213 0.614
H5 0.000 1.347 -1.889
H6 0.000 -1.347 -1.889
C7 0.000 1.182 0.284
C8 0.000 -1.182 0.284
C9 0.000 0.000 1.220
C10 0.000 0.735 -0.995
C11 0.000 -0.735 -0.995

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75842.69802.69804.10054.10052.17432.17431.10093.09763.0976
H21.75842.69802.69804.10054.10052.17432.17431.10093.09763.0976
H32.69802.69804.42592.64914.35181.08263.41112.29442.18493.3587
H42.69802.69804.42594.35182.64913.41111.08262.29443.35872.1849
H54.10054.10052.64914.35182.69332.17903.33403.38851.08332.2657
H64.10054.10054.35182.64912.69333.33402.17903.38852.26571.0833
C72.17432.17431.08263.41112.17903.33402.36421.50821.35452.3045
C82.17432.17433.41111.08263.33402.17902.36421.50822.30451.3545
C91.10091.10092.29442.29443.38853.38851.50821.50822.33412.3341
C103.09763.09762.18493.35871.08332.26571.35452.30452.33411.4703
C113.09763.09763.35872.18492.26571.08332.30451.35452.33411.4703

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 106.003 H1 C9 C7 111.947
H1 C9 C8 111.947 H2 C9 C7 111.947
H2 C9 C8 111.947 H3 C7 C9 123.823
H3 C7 C10 127.053 H4 C8 C9 123.823
H4 C8 C11 127.053 H5 C10 C7 126.363
H5 C10 C11 124.368 H6 C11 C8 126.363
H6 C11 C10 124.368 C7 C9 C8 103.214
C7 C10 C11 109.269 C8 C11 C10 109.269
C9 C7 C10 109.124 C9 C8 C11 109.124
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.195      
2 H 0.195      
3 H 0.159      
4 H 0.159      
5 H 0.159      
6 H 0.159      
7 C -0.159      
8 C -0.159      
9 C -0.418      
10 C -0.144      
11 C -0.144      


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 0.536 0.536
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 3.454 0.000 0.000
y 0.000 7.835 0.000
z 0.000 0.000 8.785


<r2> (average value of r2) Å2
<r2> 93.094
(<r2>)1/2 9.649