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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-193.585523
Energy at 298.15K-193.591668
HF Energy-192.824565
Nuclear repulsion energy156.480464
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 3264 3091 3.90      
2 A1 3240 3069 8.68      
3 A1 3071 2908 5.52      
4 A1 1548 1466 0.67      
5 A1 1447 1370 13.14      
6 A1 1419 1344 14.53      
7 A1 1139 1078 0.30      
8 A1 1040 985 0.10      
9 A1 953 902 11.44      
10 A1 812 769 0.01      
11 A2 1140 1079 0.00      
12 A2 877 831 0.00      
13 A2 686 650 0.00      
14 A2 503 476 0.00      
15 B1 3115 2950 5.86      
16 B1 920 871 27.78      
17 B1 907 859 0.01      
18 B1 671 635 91.55      
19 B1 321 304 9.54      
20 B2 3257 3085 20.50      
21 B2 3232 3061 2.08      
22 B2 1625 1539 0.73      
23 B2 1330 1259 2.33      
24 B2 1284 1216 1.92      
25 B2 1120 1061 1.96      
26 B2 999 946 12.57      
27 B2 816 773 4.76      

Unscaled Zero Point Vibrational Energy (zpe) 20366.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 19289.2 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=FULL/6-311G*
ABC
0.28140 0.27476 0.14269

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 0.880 0.000 1.873
H2 -0.880 0.000 1.873
H3 0.000 2.213 0.610
H4 0.000 -2.213 0.610
H5 0.000 1.353 -1.884
H6 0.000 -1.353 -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
H11.75932.69532.69534.08854.08852.16302.16301.09813.08663.0866
H21.75932.69532.69534.08854.08852.16302.16301.09813.08663.0866
H32.69532.69534.42612.63864.35181.08413.40712.29432.18263.3546
H42.69532.69534.42614.35182.63863.40711.08412.29433.35462.1826
H54.08854.08852.63864.35182.70572.17753.33453.38171.08472.2680
H64.08854.08854.35182.63862.70573.33452.17753.38172.26801.0847
C72.16302.16301.08413.40712.17753.33452.35711.50061.35552.3007
C82.16302.16303.40711.08413.33452.17752.35711.50062.30071.3555
C91.09811.09812.29432.29433.38173.38171.50061.50062.32752.3275
C103.08663.08662.18263.35461.08472.26801.35552.30072.32751.4662
C113.08663.08663.35462.18262.26801.08472.30071.35552.32751.4662

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 106.465 H1 C9 C7 111.747
H1 C9 C8 111.747 H2 C9 C7 111.747
H2 C9 C8 111.747 H3 C7 C9 124.370
H3 C7 C10 126.573 H4 C8 C9 124.370
H4 C8 C11 126.573 H5 C10 C7 125.969
H5 C10 C11 124.845 H6 C11 C8 125.969
H6 C11 C10 124.845 C7 C9 C8 103.514
C7 C10 C11 109.185 C8 C11 C10 109.185
C9 C7 C10 109.058 C9 C8 C11 109.058
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability