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All results from a given calculation for C6H8 (3-Methylenecyclopentene)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-232.264608
Energy at 298.15K-232.272745
HF Energy-231.756137
Nuclear repulsion energy212.423126
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3243 3123 21.17      
2 A 3219 3100 27.75      
3 A 3184 3066 4.89      
4 A 3136 3021 11.43      
5 A 3110 2996 43.87      
6 A 3081 2968 11.47      
7 A 3050 2938 38.74      
8 A 3032 2920 40.60      
9 A 1668 1606 11.66      
10 A 1587 1529 0.95      
11 A 1533 1477 6.56      
12 A 1512 1456 2.22      
13 A 1483 1429 0.94      
14 A 1372 1321 1.45      
15 A 1356 1306 2.89      
16 A 1314 1266 0.75      
17 A 1269 1222 5.32      
18 A 1256 1210 0.07      
19 A 1183 1140 1.00      
20 A 1139 1097 2.37      
21 A 1066 1027 3.17      
22 A 1017 979 2.55      
23 A 955 920 2.29      
24 A 915 881 2.74      
25 A 903 870 7.50      
26 A 866 834 0.07      
27 A 840 809 0.50      
28 A 826 795 68.96      
29 A 772 744 0.77      
30 A 771 743 31.30      
31 A 655 631 21.65      
32 A 620 597 0.39      
33 A 510 491 19.86      
34 A 356 343 0.17      
35 A 283 273 1.66      
36 A 18 18 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26550.6 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 25570.9 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/LANL2DZ
ABC
0.23420 0.11075 0.07742

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.097 -1.220 -0.000
H2 0.079 -1.846 0.894
H3 0.079 -1.846 -0.894
C4 -1.567 -0.622 0.000
H5 -2.138 -0.942 0.892
H6 -2.138 -0.942 -0.892
C7 2.221 -0.017 0.000
H8 2.809 0.906 0.000
H9 2.775 -0.960 0.000
C10 0.850 0.012 -0.000
C11 -1.345 0.906 -0.000
H12 -2.172 1.623 -0.000
C13 -0.010 1.234 -0.000
H14 0.397 2.249 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.10531.10541.58672.24492.24492.61163.60112.88391.55462.46593.51992.45593.5041
H21.10531.78862.23722.39422.98742.95493.97822.97552.20163.22524.23073.20824.2031
H31.10541.78862.23722.98742.39422.95503.97832.97552.20153.22514.23063.20814.2030
C41.58672.23722.23721.10691.10693.83544.63494.35492.49871.54442.32542.42253.4783
H52.24492.39422.98741.10691.78484.54435.35584.99353.26132.20022.71613.17174.1718
H62.24492.98742.39421.10691.78484.54445.35594.99363.26142.20022.71603.17184.1719
C72.61162.95492.95503.83544.54434.54441.09461.09391.37093.68334.68862.55722.9082
H83.60113.97823.97834.63495.35585.35591.09461.86652.15324.15405.03202.83772.7601
H92.88392.97552.97554.35494.99354.99361.09391.86652.15654.52315.58063.54523.9936
C101.55462.20162.20152.49873.26133.26141.37092.15322.15652.37033.42441.49402.2818
C112.46593.22523.22511.54442.20022.20023.68334.15404.52312.37031.09421.37492.1995
H123.51994.23074.23062.32542.71612.71604.68865.03205.58063.42441.09422.19672.6441
C132.45593.20823.20812.42253.17173.17182.55722.83773.54521.49401.37492.19671.0934
H143.50414.20314.20303.47834.17184.17192.90822.76013.99362.28182.19952.64411.0934

picture of 3-Methylenecyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 111.668 C1 C4 H6 111.669
C1 C4 C11 103.903 C1 C10 C7 126.322
C1 C10 C13 107.318 H2 C1 H3 108.006
H2 C1 C4 111.151 H2 C1 C10 110.584
H3 C1 C4 111.150 H3 C1 C10 110.583
C4 C1 C10 105.388 C4 C11 H12 122.683
C4 C11 C13 112.034 H5 C4 H6 107.462
H5 C4 C11 111.096 H6 C4 C11 111.097
C7 C10 C13 126.360 H8 C7 H9 117.044
H8 C7 C10 121.289 H9 C7 C10 121.667
C10 C13 C11 111.358 C10 C13 H14 122.997
C11 C13 H14 125.645 H12 C11 C13 125.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability