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: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-195.075846
Energy at 298.15K-195.084027
HF Energy-195.075846
Nuclear repulsion energy163.209803
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 HSEh1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3269 3119 15.69      
2 A' 3263 3114 14.82      
3 A' 3186 3040 10.36      
4 A' 3178 3033 3.50      
5 A' 3169 3025 11.83      
6 A' 3154 3009 10.46      
7 A' 1743 1664 29.34      
8 A' 1524 1454 1.17      
9 A' 1476 1408 0.18      
10 A' 1373 1310 0.80      
11 A' 1320 1259 2.96      
12 A' 1248 1191 2.88      
13 A' 1240 1183 2.32      
14 A' 1068 1019 1.54      
15 A' 1010 963 6.04      
16 A' 991 945 38.78      
17 A' 838 800 0.87      
18 A' 776 741 0.14      
19 A' 448 427 1.08      
20 A' 269 256 1.22      
21 A" 3250 3101 0.11      
22 A" 3165 3020 19.22      
23 A" 1476 1408 1.86      
24 A" 1205 1150 0.72      
25 A" 1135 1083 2.61      
26 A" 1077 1028 6.51      
27 A" 1030 983 6.23      
28 A" 938 895 1.14      
29 A" 921 879 51.20      
30 A" 841 803 5.07      
31 A" 685 654 5.00      
32 A" 313 299 1.03      
33 A" 126 120 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 25350.7 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 24192.2 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 HSEh1PBE/6-31G**
ABC
0.50924 0.10200 0.09813

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.390 0.287 0.000
C2 0.253 -1.038 0.000
C3 -0.389 -2.205 0.000
C4 0.253 1.433 0.747
C5 0.253 1.433 -0.747
H6 -1.477 0.266 0.000
H7 1.345 -1.031 0.000
H8 0.146 -3.149 0.000
H9 -1.475 -2.255 0.000
H10 -0.401 2.125 1.267
H11 1.189 1.231 1.260
H12 -0.401 2.125 -1.267
H13 1.189 1.231 -1.260

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47232.49141.51151.51151.08762.17843.47692.76372.23252.23012.23252.2301
C21.47231.33252.58052.58052.16711.09162.11392.11443.46892.75873.46892.7587
C32.49141.33253.76843.76842.70022.09441.08501.08714.51113.98574.51113.9857
C41.51152.58053.76841.49332.21652.79574.64304.14061.08531.08602.22752.2229
C51.51152.58053.76841.49332.21652.79574.64304.14062.22752.22291.08531.0860
H61.08762.16712.70022.21652.21653.10623.78132.52152.49353.10302.49353.1030
H72.17841.09162.09442.79572.79573.10622.43423.07463.82222.59383.82222.5938
H83.47692.11391.08504.64304.64303.78132.43421.85105.45104.67565.45104.6756
H92.76372.11441.08714.14064.14062.52153.07461.85104.68434.56534.68434.5653
H102.23253.46894.51111.08532.22752.49353.82225.45104.68431.82372.53403.1161
H112.23012.75873.98571.08602.22293.10302.59384.67564.56531.82373.11612.5194
H122.23253.46894.51112.22751.08532.49353.82225.45104.68432.53403.11611.8237
H132.23012.75873.98572.22291.08603.10302.59384.67564.56533.11612.51941.8237

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.241 C1 C2 H7 115.549
C1 C4 C5 60.399 C1 C4 H10 117.631
C1 C4 H11 117.370 C1 C5 C4 60.399
C1 C5 H12 117.631 C1 C5 H13 117.370
C2 C1 C4 119.726 C2 C1 C5 119.726
C2 C1 H6 114.855 C2 C3 H8 121.616
C2 C3 H9 121.494 C3 C2 H7 119.210
C4 C1 H6 116.082 C4 C5 H12 118.652
C4 C5 H13 118.194 C5 C1 H6 116.082
C5 C4 H10 118.652 C5 C4 H11 118.194
H8 C3 H9 116.890 H10 C4 H11 114.268
H12 C5 H13 114.268
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155      
2 C -0.019      
3 C -0.316      
4 C -0.276      
5 C -0.276      
6 H 0.130      
7 H 0.106      
8 H 0.121      
9 H 0.117      
10 H 0.143      
11 H 0.141      
12 H 0.143      
13 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.046 0.554 0.000 0.556
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.001 -0.994 0.000
y -0.994 -30.878 0.000
z 0.000 0.000 -33.066
Traceless
 xyz
x 2.971 -0.994 0.000
y -0.994 0.155 0.000
z 0.000 0.000 -3.126
Polar
3z2-r2-6.252
x2-y21.878
xy-0.994
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.024 0.848 0.000
y 0.848 10.469 0.000
z 0.000 0.000 5.429


<r2> (average value of r2) Å2
<r2> 133.682
(<r2>)1/2 11.562