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: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-194.700194
Energy at 298.15K-194.708438
HF Energy-193.958969
Nuclear repulsion energy162.970532
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 MP3/6-31+G**
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' 3334 3102 18.06      
2 A' 3329 3098 18.57      
3 A' 3249 3024 9.12      
4 A' 3243 3017 3.78      
5 A' 3235 3010 12.97      
6 A' 3223 2999 9.15      
7 A' 1756 1634 22.60      
8 A' 1574 1465 1.16      
9 A' 1519 1414 0.32      
10 A' 1402 1305 1.53      
11 A' 1352 1258 3.48      
12 A' 1272 1183 3.65      
13 A' 1258 1170 1.70      
14 A' 1118 1040 2.33      
15 A' 1037 965 2.63      
16 A' 996 927 39.19      
17 A' 852 792 1.54      
18 A' 797 742 0.54      
19 A' 452 420 1.04      
20 A' 273 254 1.15      
21 A" 3316 3085 0.15      
22 A" 3229 3004 19.20      
23 A" 1527 1421 0.78      
24 A" 1241 1155 0.83      
25 A" 1172 1090 1.66      
26 A" 1120 1043 3.55      
27 A" 1027 955 18.65      
28 A" 961 894 9.21      
29 A" 909 846 49.43      
30 A" 862 802 6.75      
31 A" 681 634 6.58      
32 A" 322 299 1.40      
33 A" 115 107 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 25875.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 24077.0 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 MP3/6-31+G**
ABC
0.50607 0.10168 0.09778

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.388 0.290 0.000
C2 0.258 -1.043 0.000
C3 -0.405 -2.206 0.000
C4 0.258 1.434 0.751
C5 0.258 1.434 -0.751
H6 -1.470 0.272 0.000
H7 1.344 -1.048 0.000
H8 0.117 -3.152 0.000
H9 -1.486 -2.240 0.000
H10 -0.389 2.129 1.264
H11 1.191 1.230 1.258
H12 -0.389 2.129 -1.264
H13 1.191 1.230 -1.258

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48102.49571.51361.51361.08242.18853.47822.75712.23212.22742.23212.2274
C21.48101.33872.58792.58792.17211.08592.11372.11523.47562.76063.47562.7606
C32.49571.33873.77503.77502.69792.09751.07991.08174.51583.99224.51583.9922
C41.51362.58793.77501.50282.21382.81094.64874.13501.08001.08072.22852.2247
C51.51362.58793.77501.50282.21382.81094.64874.13502.22852.22471.08001.0807
H61.08242.17212.69792.21382.21383.10883.77412.51212.49283.09572.49283.0957
H72.18851.08592.09752.81092.81093.10882.43593.07073.83372.60713.83372.6071
H83.47822.11371.07994.64874.64873.77412.43591.84385.45374.68415.45374.6841
H92.75712.11521.08174.13504.13502.51213.07071.84384.67834.55954.67834.5595
H102.23213.47564.51581.08002.22852.49283.83375.45374.67831.81812.52853.1093
H112.22742.76063.99221.08072.22473.09572.60714.68414.55951.81813.10932.5163
H122.23213.47564.51582.22851.08002.49283.83375.45374.67832.52853.10931.8181
H132.22742.76063.99222.22471.08073.09572.60714.68414.55953.10932.51631.8181

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 124.445 C1 C2 H7 116.138
C1 C4 C5 60.237 C1 C4 H10 117.803
C1 C4 H11 117.337 C1 C5 C4 60.237
C1 C5 H12 117.803 C1 C5 H13 117.337
C2 C1 C4 119.581 C2 C1 C5 119.581
C2 C1 H6 114.967 C2 C3 H8 121.467
C2 C3 H9 121.459 C3 C2 H7 119.417
C4 C1 H6 116.037 C4 C5 H12 118.351
C4 C5 H13 117.964 C5 C1 H6 116.037
C5 C4 H10 118.351 C5 C4 H11 117.964
H8 C3 H9 117.074 H10 C4 H11 114.579
H12 C5 H13 114.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability