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

using model chemistry: MP2=FULL/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=FULL/cc-pVDZ
 hartrees
Energy at 0K-193.485725
Energy at 298.15K-193.491903
HF Energy-192.806243
Nuclear repulsion energy155.706799
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/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 3283 3121 3.17      
2 A1 3258 3097 6.07      
3 A1 3080 2927 5.50      
4 A1 1554 1477 1.74      
5 A1 1417 1347 0.05      
6 A1 1395 1326 21.88      
7 A1 1122 1066 0.16      
8 A1 1037 986 0.04      
9 A1 947 900 10.62      
10 A1 804 764 0.02      
11 A2 1114 1059 0.00      
12 A2 928 882 0.00      
13 A2 703 669 0.00      
14 A2 507 482 0.00      
15 B1 3131 2976 4.88      
16 B1 938 892 1.19      
17 B1 908 863 24.21      
18 B1 681 647 59.79      
19 B1 325 309 9.18      
20 B2 3276 3113 15.73      
21 B2 3249 3088 2.20      
22 B2 1626 1545 0.25      
23 B2 1321 1256 1.52      
24 B2 1260 1197 0.92      
25 B2 1101 1047 1.99      
26 B2 989 940 9.82      
27 B2 807 767 4.99      

Unscaled Zero Point Vibrational Energy (zpe) 20380.2 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 19369.3 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/cc-pVDZ
ABC
0.27837 0.27254 0.14137

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.886 0.000 1.882
H2 -0.886 0.000 1.882
H3 0.000 2.225 0.615
H4 0.000 -2.225 0.615
H5 0.000 1.360 -1.896
H6 0.000 -1.360 -1.896
C7 0.000 1.183 0.289
C8 0.000 -1.183 0.289
C9 0.000 0.000 1.220
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
H11.77262.70972.70974.11224.11222.17322.17321.10643.10363.1036
H21.77262.70972.70974.11224.11222.17322.17321.10643.10363.1036
H32.70972.70974.44972.65534.37681.09183.42322.30572.19643.3720
H42.70972.70974.44974.37682.65533.42321.09182.30573.37202.1964
H54.11224.11222.65534.37682.72062.19213.35283.39981.09252.2795
H64.11224.11224.37682.65532.72063.35282.19213.39982.27951.0925
C72.17322.17321.09183.42322.19213.35282.36561.50521.36412.3111
C82.17322.17323.42321.09183.35282.19212.36561.50522.31111.3641
C91.10641.10642.30572.30573.39983.39981.50521.50522.33832.3383
C103.10363.10362.19643.37201.09252.27951.36412.31112.33831.4713
C113.10363.10363.37202.19642.27951.09252.31111.36412.33831.4713

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 106.463 H1 C9 C7 111.728
H1 C9 C8 111.728 H2 C9 C7 111.728
H2 C9 C8 111.728 H3 C7 C9 124.441
H3 C7 C10 126.490 H4 C8 C9 124.441
H4 C8 C11 126.490 H5 C10 C7 125.987
H5 C10 C11 124.877 H6 C11 C8 125.987
H6 C11 C10 124.877 C7 C9 C8 103.591
C7 C10 C11 109.136 C8 C11 C10 109.136
C9 C7 C10 109.069 C9 C8 C11 109.069
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability