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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-193.498567
Energy at 298.15K-193.504776
HF Energy-192.800943
Nuclear repulsion energy156.870154
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
(Å4/u)
Dep P Dep U
1 A1 3322 3104 3.26      
2 A1 3298 3082 8.34      
3 A1 3117 2913 6.07      
4 A1 1584 1480 1.51      
5 A1 1472 1376 7.06      
6 A1 1448 1353 9.97      
7 A1 1158 1082 0.11      
8 A1 1052 983 0.02      
9 A1 962 899 8.11      
10 A1 818 764 0.03      
11 A2 1145 1070 0.00      
12 A2 912 852 0.00      
13 A2 708 661 0.00      
14 A2 505 472 0.00      
15 B1 3165 2958 7.14      
16 B1 944 882 17.60      
17 B1 934 873 2.75      
18 B1 687 642 60.70      
19 B1 330 309 8.97      
20 B2 3315 3098 19.69      
21 B2 3289 3073 2.92      
22 B2 1659 1550 0.33      
23 B2 1356 1267 1.32      
24 B2 1303 1218 1.14      
25 B2 1141 1066 1.14      
26 B2 1007 941 8.05      
27 B2 820 766 4.86      

Unscaled Zero Point Vibrational Energy (zpe) 20725.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 19365.5 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
0.28258 0.27616 0.14334

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 0.876 0.000 1.868
H2 -0.876 0.000 1.868
H3 0.000 2.205 0.610
H4 0.000 -2.205 0.610
H5 0.000 1.347 -1.879
H6 0.000 -1.347 -1.879
C7 0.000 1.176 0.285
C8 0.000 -1.176 0.285
C9 0.000 0.000 1.213
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
H11.75222.68582.68584.07704.07702.15792.15791.09373.07933.0793
H21.75222.68582.68584.07704.07702.15792.15791.09373.07933.0793
H32.68582.68584.41002.63244.33671.07873.39672.28612.17633.3447
H42.68582.68584.41004.33672.63243.39671.07872.28613.34472.1763
H54.07704.07702.63244.33672.69342.17093.32403.37281.07962.2595
H64.07704.07704.33672.63242.69343.32402.17093.37282.25951.0796
C72.15792.15791.07873.39672.17093.32402.35241.49831.35232.2956
C82.15792.15793.39671.07873.32402.17092.35241.49832.29561.3523
C91.09371.09372.28612.28613.37283.37281.49831.49832.32332.3233
C103.07933.07932.17633.34471.07962.25951.35232.29562.32331.4628
C113.07933.07933.34472.17632.25951.07962.29561.35232.32331.4628

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 106.451 H1 C9 C7 111.768
H1 C9 C8 111.768 H2 C9 C7 111.768
H2 C9 C8 111.768 H3 C7 C9 124.223
H3 C7 C10 126.702 H4 C8 C9 124.223
H4 C8 C11 126.702 H5 C10 C7 126.052
H5 C10 C11 124.745 H6 C11 C8 126.052
H6 C11 C10 124.745 C7 C9 C8 103.446
C7 C10 C11 109.203 C8 C11 C10 109.203
C9 C7 C10 109.075 C9 C8 C11 109.075
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability