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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-193.164746
Energy at 298.15K-193.170947
HF Energy-192.714890
Nuclear repulsion energy154.663835
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
4/u)
Dep P Dep U
1 A1 3259 3097 4.71      
2 A1 3228 3067 12.72      
3 A1 3057 2904 8.10      
4 A1 1549 1472 0.00      
5 A1 1506 1431 13.54      
6 A1 1419 1348 5.46      
7 A1 1165 1107 0.20      
8 A1 1016 965 0.00      
9 A1 928 882 8.38      
10 A1 832 791 0.00      
11 A2 1147 1090 0.00      
12 A2 853 810 0.00      
13 A2 697 662 0.00      
14 A2 509 483 0.00      
15 B1 3098 2944 12.54      
16 B1 982 933 14.50      
17 B1 897 852 0.32      
18 B1 670 636 90.86      
19 B1 354 336 7.98      
20 B2 3248 3086 31.64      
21 B2 3219 3058 1.68      
22 B2 1612 1531 0.38      
23 B2 1352 1285 0.42      
24 B2 1288 1224 4.21      
25 B2 1154 1096 0.91      
26 B2 991 941 8.00      
27 B2 832 790 2.65      

Unscaled Zero Point Vibrational Energy (zpe) 20429.0 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 19409.6 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/6-31G
ABC
0.27407 0.26835 0.13913

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 0.886 0.000 1.895
H2 -0.886 0.000 1.895
H3 0.000 2.230 0.615
H4 0.000 -2.230 0.615
H5 0.000 1.362 -1.902
H6 0.000 -1.362 -1.902
C7 0.000 1.194 0.286
C8 0.000 -1.194 0.286
C9 0.000 0.000 1.238
C10 0.000 0.744 -1.006
C11 0.000 -0.744 -1.006

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 C9 C10 C11
H11.77212.71942.71944.12974.12972.19072.19071.10293.12343.1234
H21.77212.71942.71944.12974.12972.19072.19071.10293.12343.1234
H32.71942.71944.45942.66194.38571.08723.43902.31522.19903.3870
H42.71942.71944.45944.38572.66193.43901.08722.31523.38702.1990
H54.12974.12972.66194.38572.72432.19383.36393.42261.08802.2886
H64.12974.12974.38572.66192.72433.36392.19383.42262.28861.0880
C72.19072.19071.08723.43902.19383.36392.38701.52701.36792.3288
C82.19072.19073.43901.08723.36392.19382.38701.52702.32881.3679
C91.10291.10292.31522.31523.42263.42261.52701.52702.36462.3646
C103.12343.12342.19903.38701.08802.28861.36792.32882.36461.4881
C113.12343.12343.38702.19902.28861.08802.32881.36792.36461.4881

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 106.907 H1 C9 C7 111.804
H1 C9 C8 111.804 H2 C9 C7 111.804
H2 C9 C8 111.804 H3 C7 C9 123.783
H3 C7 C10 126.808 H4 C8 C9 123.783
H4 C8 C11 126.808 H5 C10 C7 126.199
H5 C10 C11 124.619 H6 C11 C8 126.199
H6 C11 C10 124.619 C7 C9 C8 102.818
C7 C10 C11 109.182 C8 C11 C10 109.182
C9 C7 C10 109.409 C9 C8 C11 109.409
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability