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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-193.449668
Energy at 298.15K-193.455859
HF Energy-192.789839
Nuclear repulsion energy156.670296
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=FULL/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 3287 3097 2.99      
2 A1 3264 3075 8.06      
3 A1 3089 2911 4.58      
4 A1 1580 1489 1.13      
5 A1 1478 1393 10.94      
6 A1 1443 1360 9.99      
7 A1 1159 1092 0.19      
8 A1 1053 992 0.03      
9 A1 963 907 9.19      
10 A1 820 772 0.04      
11 A2 1149 1083 0.00      
12 A2 896 844 0.00      
13 A2 704 663 0.00      
14 A2 506 476 0.00      
15 B1 3133 2952 6.11      
16 B1 948 893 19.49      
17 B1 924 870 0.00      
18 B1 686 646 70.90      
19 B1 334 315 9.81      
20 B2 3281 3091 18.44      
21 B2 3255 3067 2.94      
22 B2 1655 1559 0.74      
23 B2 1351 1273 1.82      
24 B2 1306 1231 1.57      
25 B2 1143 1077 1.58      
26 B2 1011 952 9.29      
27 B2 821 774 4.64      

Unscaled Zero Point Vibrational Energy (zpe) 20617.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 19425.9 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=FULL/6-31G*
ABC
0.28192 0.27569 0.14307

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.879 0.000 1.873
H2 -0.879 0.000 1.873
H3 0.000 2.210 0.612
H4 0.000 -2.210 0.612
H5 0.000 1.349 -1.885
H6 0.000 -1.349 -1.885
C7 0.000 1.177 0.285
C8 0.000 -1.177 0.285
C9 0.000 0.000 1.214
C10 0.000 0.732 -0.992
C11 0.000 -0.732 -0.992

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.75862.69272.69274.08844.08842.16332.16331.09903.08553.0855
H21.75862.69272.69274.08844.08842.16332.16331.09903.08553.0855
H32.69272.69274.42092.64094.34761.08423.40272.29102.18173.3510
H42.69272.69274.42094.34762.64093.40271.08422.29103.35102.1817
H54.08844.08842.64094.34762.69792.17663.32963.37961.08512.2639
H64.08844.08844.34762.64092.69793.32962.17663.37962.26391.0851
C72.16332.16331.08423.40272.17663.32962.35321.49911.35272.2963
C82.16332.16333.40271.08423.32962.17662.35321.49912.29631.3527
C91.09901.09902.29102.29103.37963.37961.49911.49912.32452.3245
C103.08553.08552.18173.35101.08512.26391.35272.29632.32451.4633
C113.08553.08553.35102.18172.26391.08512.29631.35272.32451.4633

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 106.282 H1 C9 C7 111.822
H1 C9 C8 111.822 H2 C9 C7 111.822
H2 C9 C8 111.822 H3 C7 C9 124.170
H3 C7 C10 126.741 H4 C8 C9 124.170
H4 C8 C11 126.741 H5 C10 C7 126.122
H5 C10 C11 124.673 H6 C11 C8 126.122
H6 C11 C10 124.673 C7 C9 C8 103.413
C7 C10 C11 109.205 C8 C11 C10 109.205
C9 C7 C10 109.089 C9 C8 C11 109.089
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability