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All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-193.300895
Energy at 298.15K-193.309146
HF Energy-192.853476
Nuclear repulsion energy161.677565
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 MP2/3-21G
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' 3298 3148 12.41      
2 A' 3260 3112 15.96      
3 A' 3207 3061 3.85      
4 A' 3200 3054 7.48      
5 A' 3175 3030 4.76      
6 A' 3143 3000 9.36      
7 A' 1690 1613 12.10      
8 A' 1572 1500 1.14      
9 A' 1542 1471 0.39      
10 A' 1389 1326 1.56      
11 A' 1381 1318 1.10      
12 A' 1270 1212 2.08      
13 A' 1176 1123 2.86      
14 A' 1140 1088 10.32      
15 A' 1067 1018 4.08      
16 A' 938 895 27.47      
17 A' 840 802 1.23      
18 A' 795 759 1.73      
19 A' 457 436 1.47      
20 A' 277 264 0.76      
21 A" 3282 3133 0.05      
22 A" 3195 3050 11.52      
23 A" 1559 1488 2.50      
24 A" 1244 1187 0.66      
25 A" 1191 1137 2.20      
26 A" 1152 1099 8.83      
27 A" 1041 994 13.38      
28 A" 958 914 0.17      
29 A" 940 897 49.23      
30 A" 825 787 15.23      
31 A" 687 656 3.39      
32 A" 325 310 1.83      
33 A" 113 108 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 25662.0 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 24494.3 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 MP2/3-21G
ABC
0.49524 0.10040 0.09638

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.409 0.286 0.000
C2 0.256 -1.042 0.000
C3 -0.383 -2.225 0.000
C4 0.256 1.445 0.763
C5 0.256 1.445 -0.763
H6 -1.495 0.266 0.000
H7 1.348 -1.020 0.000
H8 0.156 -3.167 0.000
H9 -1.468 -2.286 0.000
H10 -0.392 2.147 1.273
H11 1.189 1.229 1.272
H12 -0.392 2.147 -1.273
H13 1.189 1.229 -1.272

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48482.51041.53931.53931.08632.18853.49812.78182.25532.24892.25532.2489
C21.48481.34432.60172.60172.18541.09202.12702.12673.49462.76443.49462.7644
C32.51041.34433.80243.80242.72722.10921.08541.08724.55334.00154.55334.0015
C41.53932.60173.80241.52692.24502.80174.67564.18111.08341.08392.25002.2490
C51.53932.60173.80241.52692.24502.80174.67564.18112.25002.24901.08341.0839
H61.08632.18542.72722.24502.24503.11983.80862.55212.52513.12182.52513.1218
H72.18851.09202.10922.80172.80173.11982.45573.08833.83122.58773.83122.5877
H83.49812.12701.08544.67564.67563.80862.45571.84775.49154.69055.49154.6905
H92.78182.12671.08724.18114.18112.55213.08831.84774.73644.58614.73644.5861
H102.25533.49464.55331.08342.25002.52513.83125.49154.73641.82872.54703.1340
H112.24892.76444.00151.08392.24903.12182.58774.69054.58611.82873.13402.5432
H122.25533.49464.55332.25001.08342.52513.83125.49154.73642.54703.13401.8287
H132.24892.76444.00152.24901.08393.12182.58774.69054.58613.13402.54321.8287

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.006 C1 C2 H7 115.423
C1 C4 C5 60.265 C1 C4 H10 117.567
C1 C4 H11 116.978 C1 C5 C4 60.265
C1 C5 H12 117.567 C1 C5 H13 116.978
C2 C1 C4 118.692 C2 C1 C5 118.692
C2 C1 H6 115.546 C2 C3 H8 121.822
C2 C3 H9 121.648 C3 C2 H7 119.571
C4 C1 H6 116.472 C4 C5 H12 118.085
C4 C5 H13 117.958 C5 C1 H6 116.472
C5 C4 H10 118.085 C5 C4 H11 117.958
H8 C3 H9 116.530 H10 C4 H11 115.089
H12 C5 H13 115.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability