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: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-195.014649
Energy at 298.15K-195.022648
HF Energy-195.014649
Nuclear repulsion energy161.926966
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 PBEPBE/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 A' 3177 3131 19.24      
2 A' 3173 3128 16.72      
3 A' 3094 3050 13.19      
4 A' 3093 3049 3.72      
5 A' 3085 3041 13.77      
6 A' 3059 3016 12.26      
7 A' 1676 1652 29.32      
8 A' 1479 1458 0.90      
9 A' 1440 1419 0.22      
10 A' 1333 1314 1.12      
11 A' 1287 1269 3.16      
12 A' 1215 1198 4.19      
13 A' 1204 1187 0.77      
14 A' 1025 1010 1.74      
15 A' 983 969 5.67      
16 A' 958 945 37.07      
17 A' 814 803 0.81      
18 A' 753 742 0.14      
19 A' 434 428 1.15      
20 A' 261 257 1.17      
21 A" 3158 3113 0.10      
22 A" 3082 3038 21.52      
23 A" 1443 1423 1.47      
24 A" 1171 1155 0.66      
25 A" 1096 1080 3.00      
26 A" 1030 1016 6.87      
27 A" 987 973 6.23      
28 A" 889 876 3.07      
29 A" 864 851 43.29      
30 A" 811 799 5.84      
31 A" 659 650 4.63      
32 A" 300 296 1.03      
33 A" 125 123 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 24579.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 24228.2 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 PBEPBE/6-31G*
ABC
0.50213 0.10037 0.09654

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.391 0.285 0.000
C2 0.255 -1.044 0.000
C3 -0.392 -2.223 0.000
C4 0.255 1.446 0.752
C5 0.255 1.446 -0.752
H6 -1.487 0.265 0.000
H7 1.355 -1.036 0.000
H8 0.148 -3.175 0.000
H9 -1.486 -2.277 0.000
H10 -0.409 2.138 1.278
H11 1.198 1.246 1.270
H12 -0.409 2.138 -1.278
H13 1.198 1.246 -1.270

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47772.50811.52601.52601.09652.18973.50142.78702.25162.25012.25162.2501
C21.47771.34462.60062.60062.17911.10062.13322.13393.49332.78373.49332.7837
C32.50811.34463.80023.80022.71862.11231.09401.09614.54514.02214.54514.0221
C41.52602.60063.80021.50372.23462.81684.68214.17831.09431.09492.24542.2404
C51.52602.60063.80021.50372.23462.81684.68214.17832.24542.24041.09431.0949
H61.09652.17912.71862.23462.23463.12623.80862.54252.51153.12862.51153.1286
H72.18971.10062.11232.81682.81683.12622.45593.10133.85012.61673.85012.6167
H83.50142.13321.09404.68214.68213.80862.45591.86455.49304.71805.49304.7180
H92.78702.13391.09614.17834.17832.54253.10131.86454.72204.60844.72204.6084
H102.25163.49334.54511.09432.24542.51153.85015.49304.72201.83792.55673.1424
H112.25012.78374.02211.09492.24043.12862.61674.71804.60841.83793.14242.5409
H122.25163.49334.54512.24541.09432.51153.85015.49304.72202.55673.14241.8379
H132.25012.78374.02212.24041.09493.12862.61674.71804.60843.14242.54091.8379

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.351 C1 C2 H7 115.489
C1 C4 C5 60.484 C1 C4 H10 117.525
C1 C4 H11 117.353 C1 C5 C4 60.484
C1 C5 H12 117.525 C1 C5 H13 117.353
C2 C1 C4 119.942 C2 C1 C5 119.942
C2 C1 H6 114.863 C2 C3 H8 121.694
C2 C3 H9 121.586 C3 C2 H7 119.160
C4 C1 H6 115.907 C4 C5 H12 118.761
C4 C5 H13 118.273 C5 C1 H6 115.907
C5 C4 H10 118.761 C5 C4 H11 118.273
H8 C3 H9 116.720 H10 C4 H11 114.188
H12 C5 H13 114.188
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.150      
2 C -0.029      
3 C -0.382      
4 C -0.336      
5 C -0.336      
6 H 0.151      
7 H 0.124      
8 H 0.145      
9 H 0.142      
10 H 0.168      
11 H 0.168      
12 H 0.168      
13 H 0.168      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.042 0.601 0.000 0.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.124 -1.019 0.000
y -1.019 -31.046 0.000
z 0.000 0.000 -33.128
Traceless
 xyz
x 2.963 -1.019 0.000
y -1.019 0.079 0.000
z 0.000 0.000 -3.042
Polar
3z2-r2-6.085
x2-y21.922
xy-1.019
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.115 0.806 0.000
y 0.806 10.822 0.000
z 0.000 0.000 5.459


<r2> (average value of r2) Å2
<r2> 135.611
(<r2>)1/2 11.645