return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: MP2=FULL/cc-pVTZ

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=FULL/cc-pVTZ
 hartrees
Energy at 0K-194.920678
Energy at 298.15K-194.928918
HF Energy-194.009330
Nuclear repulsion energy164.203959
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/cc-pVTZ
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' 3291 3124 8.83      
2 A' 3284 3118 8.76      
3 A' 3217 3054 5.52      
4 A' 3205 3043 0.58      
5 A' 3203 3041 8.44      
6 A' 3179 3018 6.91      
7 A' 1714 1627 24.56      
8 A' 1528 1450 1.49      
9 A' 1488 1412 0.36      
10 A' 1374 1304 0.52      
11 A' 1323 1256 2.63      
12 A' 1254 1190 3.66      
13 A' 1242 1179 2.25      
14 A' 1055 1002 4.42      
15 A' 1016 965 2.37      
16 A' 989 939 38.89      
17 A' 844 801 1.29      
18 A' 782 742 0.19      
19 A' 448 425 1.06      
20 A' 267 253 1.08      
21 A" 3277 3111 0.12      
22 A" 3199 3037 11.58      
23 A" 1489 1413 2.09      
24 A" 1211 1149 0.90      
25 A" 1143 1085 3.04      
26 A" 1077 1022 6.60      
27 A" 1037 985 10.84      
28 A" 942 894 20.82      
29 A" 934 887 27.26      
30 A" 849 806 5.93      
31 A" 696 661 6.13      
32 A" 320 304 0.93      
33 A" 125 119 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 25498.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 24208.6 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/cc-pVTZ
ABC
0.51220 0.10356 0.09960

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.396 0.286 0.000
C2 0.254 -1.024 0.000
C3 -0.386 -2.192 0.000
C4 0.254 1.420 0.747
C5 0.254 1.420 -0.747
H6 -1.473 0.269 0.000
H7 1.334 -1.016 0.000
H8 0.153 -3.123 0.000
H9 -1.462 -2.235 0.000
H10 -0.391 2.115 1.253
H11 1.179 1.204 1.250
H12 -0.391 2.115 -1.253
H13 1.179 1.204 -1.250

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.46192.47731.50581.50581.07702.16583.45242.73652.21772.21132.21772.2113
C21.46191.33132.55562.55562.15731.08072.10132.10023.44092.71733.44092.7173
C32.47731.33133.74323.74322.69052.08291.07581.07774.48553.94254.48553.9425
C41.50582.55563.74321.49322.20562.76824.60504.10621.07481.07592.21312.2115
C51.50582.55563.74321.49322.20562.76824.60504.10622.21312.21151.07481.0759
H61.07702.15732.69052.20562.20563.08793.76172.50402.47993.07802.47993.0780
H72.16581.08072.08292.76822.76823.08792.41473.05053.78892.55303.78892.5530
H83.45242.10131.07584.60504.60503.76172.41471.84365.41334.61925.41334.6192
H92.73652.10021.07774.10624.10622.50403.05051.84364.65204.51314.65204.5131
H102.21773.44094.48551.07482.21312.47993.78895.41334.65201.81572.50643.0925
H112.21132.71733.94251.07592.21153.07802.55304.61924.51311.81573.09252.5002
H122.21773.44094.48552.21311.07482.47993.78895.41334.65202.50643.09251.8157
H132.21132.71733.94252.21151.07593.07802.55304.61924.51313.09252.50021.8157

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.907 C1 C2 H7 116.014
C1 C4 C5 60.275 C1 C4 H10 117.516
C1 C4 H11 116.883 C1 C5 C4 60.275
C1 C5 H12 117.516 C1 C5 H13 116.883
C2 C1 C4 118.881 C2 C1 C5 118.881
C2 C1 H6 115.524 C2 C3 H8 121.250
C2 C3 H9 120.987 C3 C2 H7 119.079
C4 C1 H6 116.306 C4 C5 H12 118.118
C4 C5 H13 117.903 C5 C1 H6 116.306
C5 C4 H10 118.118 C5 C4 H11 117.903
H8 C3 H9 117.763 H10 C4 H11 115.185
H12 C5 H13 115.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability