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

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-193.473173
Energy at 298.15K-193.479341
HF Energy-192.806006
Nuclear repulsion energy155.571883
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/cc-pVDZ
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 3277 3122 3.22      
2 A1 3252 3098 6.23      
3 A1 3074 2928 5.69      
4 A1 1551 1477 1.71      
5 A1 1415 1348 0.05      
6 A1 1394 1328 21.51      
7 A1 1121 1067 0.16      
8 A1 1035 986 0.04      
9 A1 945 900 10.50      
10 A1 802 764 0.02      
11 A2 1113 1060 0.00      
12 A2 922 879 0.00      
13 A2 700 667 0.00      
14 A2 505 481 0.00      
15 B1 3125 2977 5.08      
16 B1 934 890 1.53      
17 B1 907 864 23.45      
18 B1 678 646 60.20      
19 B1 325 309 9.11      
20 B2 3270 3114 16.08      
21 B2 3243 3089 2.20      
22 B2 1623 1546 0.24      
23 B2 1319 1257 1.48      
24 B2 1258 1198 0.93      
25 B2 1100 1048 1.96      
26 B2 988 941 9.69      
27 B2 806 768 4.96      

Unscaled Zero Point Vibrational Energy (zpe) 20341.4 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 19375.2 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/cc-pVDZ
ABC
0.27790 0.27206 0.14113

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.887 0.000 1.884
H2 -0.887 0.000 1.884
H3 0.000 2.227 0.615
H4 0.000 -2.227 0.615
H5 0.000 1.362 -1.897
H6 0.000 -1.362 -1.897
C7 0.000 1.184 0.289
C8 0.000 -1.184 0.289
C9 0.000 0.000 1.221
C10 0.000 0.736 -1.000
C11 0.000 -0.736 -1.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77452.71212.71214.11584.11582.17532.17531.10743.10633.1063
H21.77452.71212.71214.11584.11582.17532.17531.10743.10633.1063
H32.71212.71214.45362.65754.38061.09283.42622.30782.19813.3749
H42.71212.71214.45364.38062.65753.42621.09282.30783.37492.1981
H54.11584.11582.65754.38062.72302.19393.35563.40291.09342.2816
H64.11584.11584.38062.65752.72303.35562.19393.40292.28161.0934
C72.17532.17531.09283.42622.19393.35562.36761.50671.36502.3130
C82.17532.17533.42621.09283.35562.19392.36761.50672.31301.3650
C91.10741.10742.30782.30783.40293.40291.50671.50672.34042.3404
C103.10633.10632.19813.37491.09342.28161.36502.31302.34041.4726
C113.10633.10633.37492.19812.28161.09342.31301.36502.34041.4726

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 106.480 H1 C9 C7 111.728
H1 C9 C8 111.728 H2 C9 C7 111.728
H2 C9 C8 111.728 H3 C7 C9 124.429
H3 C7 C10 126.494 H4 C8 C9 124.429
H4 C8 C11 126.494 H5 C10 C7 125.989
H5 C10 C11 124.874 H6 C11 C8 125.989
H6 C11 C10 124.874 C7 C9 C8 103.573
C7 C10 C11 109.137 C8 C11 C10 109.137
C9 C7 C10 109.077 C9 C8 C11 109.077
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability