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

using model chemistry: MP2=FULL/6-311G**

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/6-311G**
 hartrees
Energy at 0K-193.630380
Energy at 298.15K-193.636539
HF Energy-192.835185
Nuclear repulsion energy156.481978
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/6-311G**
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 3271 3103 3.26      
2 A1 3247 3080 7.30      
3 A1 3074 2916 5.84      
4 A1 1544 1465 1.12      
5 A1 1428 1355 6.80      
6 A1 1409 1337 16.24      
7 A1 1130 1072 0.15      
8 A1 1037 984 0.08      
9 A1 949 900 10.15      
10 A1 808 766 0.00      
11 A2 1120 1062 0.00      
12 A2 903 857 0.00      
13 A2 691 656 0.00      
14 A2 503 477 0.00      
15 B1 3119 2959 5.96      
16 B1 925 877 4.63      
17 B1 915 868 23.98      
18 B1 671 636 74.73      
19 B1 317 301 8.65      
20 B2 3265 3097 17.62      
21 B2 3238 3072 2.37      
22 B2 1621 1537 0.28      
23 B2 1324 1256 1.74      
24 B2 1272 1207 1.28      
25 B2 1111 1054 1.59      
26 B2 993 942 10.41      
27 B2 811 769 4.97      

Unscaled Zero Point Vibrational Energy (zpe) 20347.4 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 19301.6 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/6-311G**
ABC
0.28147 0.27464 0.14270

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.882 0.000 1.870
H2 -0.882 0.000 1.870
H3 0.000 2.212 0.611
H4 0.000 -2.212 0.611
H5 0.000 1.352 -1.884
H6 0.000 -1.352 -1.884
C7 0.000 1.179 0.286
C8 0.000 -1.179 0.286
C9 0.000 0.000 1.215
C10 0.000 0.733 -0.994
C11 0.000 -0.733 -0.994

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.76402.69362.69364.08604.08602.16222.16221.09833.08463.0846
H21.76402.69362.69364.08604.08602.16222.16221.09833.08463.0846
H32.69362.69364.42472.63964.35081.08323.40692.29332.18273.3545
H42.69362.69364.42474.35082.63963.40691.08322.29333.35452.1827
H54.08604.08602.63964.35082.70342.17723.33393.38121.08402.2670
H64.08604.08604.35082.63962.70343.33392.17723.38122.26701.0840
C72.16222.16221.08323.40692.17723.33392.35801.50101.35552.3011
C82.16222.16223.40691.08323.33392.17722.35801.50102.30111.3555
C91.09831.09832.29332.29333.38123.38121.50101.50102.32752.3275
C103.08463.08462.18273.35451.08402.26701.35552.30112.32751.4664
C113.08463.08463.35452.18272.26701.08402.30111.35552.32751.4664

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 106.853 H1 C9 C7 111.639
H1 C9 C8 111.639 H2 C9 C7 111.639
H2 C9 C8 111.639 H3 C7 C9 124.304
H3 C7 C10 126.664 H4 C8 C9 124.304
H4 C8 C11 126.664 H5 C10 C7 126.008
H5 C10 C11 124.790 H6 C11 C8 126.008
H6 C11 C10 124.790 C7 C9 C8 103.531
C7 C10 C11 109.203 C8 C11 C10 109.203
C9 C7 C10 109.032 C9 C8 C11 109.032
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability