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

using model chemistry: MP2/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-193.676607
Energy at 298.15K-193.682815
HF Energy-192.858867
Nuclear repulsion energy156.880197
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 MP2/aug-cc-pVTZ
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 3262 3109 2.44      
2 A1 3238 3085 5.56      
3 A1 3060 2916 4.35      
4 A1 1526 1454 0.46      
5 A1 1418 1351 11.45      
6 A1 1401 1335 14.15      
7 A1 1122 1069 0.11      
8 A1 1031 983 0.34      
9 A1 941 897 10.49      
10 A1 808 770 0.01      
11 A2 1127 1074 0.00      
12 A2 939 894 0.00      
13 A2 706 673 0.00      
14 A2 513 489 0.00      
15 B1 3103 2957 2.44      
16 B1 948 903 0.48      
17 B1 908 866 34.00      
18 B1 681 649 72.04      
19 B1 333 317 6.83      
20 B2 3255 3102 12.86      
21 B2 3228 3076 2.07      
22 B2 1603 1528 0.00      
23 B2 1313 1251 1.10      
24 B2 1262 1203 1.46      
25 B2 1102 1051 1.25      
26 B2 987 941 12.37      
27 B2 813 775 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 20313.9 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 19357.2 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 MP2/aug-cc-pVTZ
ABC
0.28258 0.27634 0.14341

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.878 0.000 1.867
H2 -0.878 0.000 1.867
H3 0.000 2.205 0.611
H4 0.000 -2.205 0.611
H5 0.000 1.346 -1.879
H6 0.000 -1.346 -1.879
C7 0.000 1.176 0.286
C8 0.000 -1.176 0.286
C9 0.000 0.000 1.212
C10 0.000 0.731 -0.992
C11 0.000 -0.731 -0.992

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75512.68532.68534.07654.07652.15722.15721.09493.07833.0783
H21.75512.68532.68534.07654.07652.15722.15721.09493.07833.0783
H32.68532.68534.41052.63454.33761.07953.39682.28572.17753.3452
H42.68532.68534.41054.33762.63453.39681.07952.28573.34522.1775
H54.07654.07652.63454.33762.69232.17183.32403.37211.08012.2590
H64.07654.07654.33762.63452.69233.32402.17183.37212.25901.0801
C72.15722.15721.07953.39682.17183.32402.35191.49721.35252.2952
C82.15722.15723.39681.07953.32402.17182.35191.49722.29521.3525
C91.09491.09492.28572.28573.37213.37211.49721.49722.32202.3220
C103.07833.07832.17753.34521.08012.25901.35252.29522.32201.4621
C113.07833.07833.34522.17752.25901.08012.29521.35252.32201.4621

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 106.553 H1 C9 C7 111.721
H1 C9 C8 111.721 H2 C9 C7 111.721
H2 C9 C8 111.721 H3 C7 C9 124.219
H3 C7 C10 126.748 H4 C8 C9 124.219
H4 C8 C11 126.748 H5 C10 C7 126.081
H5 C10 C11 124.714 H6 C11 C8 126.081
H6 C11 C10 124.714 C7 C9 C8 103.524
C7 C10 C11 109.204 C8 C11 C10 109.204
C9 C7 C10 109.034 C9 C8 C11 109.034
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability