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/6-31+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 HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-195.082986
Energy at 298.15K-195.091164
HF Energy-195.082986
Nuclear repulsion energy163.090142
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/6-31+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' 3266 3119 14.42      
2 A' 3259 3112 14.44      
3 A' 3183 3039 10.39      
4 A' 3174 3031 3.48      
5 A' 3165 3022 12.42      
6 A' 3153 3010 9.51      
7 A' 1725 1647 42.38      
8 A' 1517 1449 1.70      
9 A' 1470 1404 0.32      
10 A' 1366 1304 0.99      
11 A' 1316 1256 2.80      
12 A' 1245 1189 4.48      
13 A' 1236 1180 1.76      
14 A' 1059 1011 1.99      
15 A' 1008 962 5.10      
16 A' 985 941 50.01      
17 A' 836 798 1.42      
18 A' 775 740 0.29      
19 A' 448 427 1.28      
20 A' 269 257 1.28      
21 A" 3245 3099 0.14      
22 A" 3161 3018 20.11      
23 A" 1469 1402 2.60      
24 A" 1199 1145 1.11      
25 A" 1129 1078 2.85      
26 A" 1074 1026 7.59      
27 A" 1021 974 10.69      
28 A" 934 891 0.57      
29 A" 922 880 65.37      
30 A" 840 802 5.25      
31 A" 682 651 8.47      
32 A" 315 301 1.40      
33 A" 124 118 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 25283.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 24141.1 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/6-31+G**
ABC
0.50827 0.10187 0.09799

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.390 0.287 0.000
C2 0.254 -1.037 0.000
C3 -0.390 -2.207 0.000
C4 0.254 1.433 0.748
C5 0.254 1.433 -0.748
H6 -1.478 0.267 0.000
H7 1.346 -1.032 0.000
H8 0.147 -3.150 0.000
H9 -1.477 -2.257 0.000
H10 -0.401 2.126 1.268
H11 1.190 1.231 1.260
H12 -0.401 2.126 -1.268
H13 1.190 1.231 -1.260

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47252.49441.51231.51231.08792.18043.47902.76692.23302.23072.23302.2307
C21.47251.33572.58082.58082.16781.09182.11572.11753.46952.75823.46952.7582
C32.49441.33573.77183.77182.70282.09611.08531.08754.51443.98824.51443.9882
C41.51232.58083.77181.49522.21772.79814.64504.14431.08571.08632.22922.2247
C51.51232.58083.77181.49522.21772.79814.64504.14432.22922.22471.08571.0863
H61.08792.16782.70282.21772.21773.10823.78392.52462.49413.10412.49413.1041
H72.18041.09182.09612.79812.79813.10822.43323.07673.82482.59503.82482.5950
H83.47902.11571.08534.64504.64503.78392.43321.85305.45334.67625.45334.6762
H92.76692.11751.08754.14434.14432.52463.07671.85304.68774.56814.68774.5681
H102.23303.46954.51441.08572.22922.49413.82485.45334.68771.82532.53533.1182
H112.23072.75823.98821.08632.22473.10412.59504.67624.56811.82533.11822.5208
H122.23303.46954.51442.22921.08572.49413.82485.45334.68772.53533.11821.8253
H132.23072.75823.98822.22471.08633.10412.59504.67624.56813.11822.52081.8253

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.240 C1 C2 H7 115.685
C1 C4 C5 60.374 C1 C4 H10 117.585
C1 C4 H11 117.333 C1 C5 C4 60.374
C1 C5 H12 117.585 C1 C5 H13 117.333
C2 C1 C4 119.682 C2 C1 C5 119.682
C2 C1 H6 114.874 C2 C3 H8 121.481
C2 C3 H9 121.476 C3 C2 H7 119.074
C4 C1 H6 116.096 C4 C5 H12 118.621
C4 C5 H13 118.168 C5 C1 H6 116.096
C5 C4 H10 118.621 C5 C4 H11 118.168
H8 C3 H9 117.043 H10 C4 H11 114.361
H12 C5 H13 114.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.148      
2 C -0.171      
3 C -0.371      
4 C -0.441      
5 C -0.441      
6 H 0.158      
7 H 0.141      
8 H 0.152      
9 H 0.146      
10 H 0.171      
11 H 0.169      
12 H 0.171      
13 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.014 0.623 0.000 0.623
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.567 -1.071 0.000
y -1.071 -31.752 0.000
z 0.000 0.000 -34.238
Traceless
 xyz
x 3.428 -1.071 0.000
y -1.071 0.151 0.000
z 0.000 0.000 -3.578
Polar
3z2-r2-7.157
x2-y22.185
xy-1.071
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.658 1.127 0.000
y 1.127 11.672 0.000
z 0.000 0.000 7.251


<r2> (average value of r2) Å2
<r2> 134.378
(<r2>)1/2 11.592