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: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-195.086683
Energy at 298.15K-195.094717
HF Energy-195.086683
Nuclear repulsion energy162.593469
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 PBEPBEultrafine/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' 3156 3134 17.27      
2 A' 3153 3132 12.62      
3 A' 3080 3059 10.28      
4 A' 3067 3046 0.27      
5 A' 3066 3045 16.81      
6 A' 3042 3021 9.88      
7 A' 1651 1640 37.85      
8 A' 1450 1440 1.24      
9 A' 1417 1407 0.30      
10 A' 1315 1306 0.87      
11 A' 1276 1267 2.74      
12 A' 1202 1194 4.42      
13 A' 1189 1181 1.16      
14 A' 1008 1001 2.43      
15 A' 974 967 2.89      
16 A' 948 941 42.61      
17 A' 807 802 1.08      
18 A' 747 742 0.18      
19 A' 435 432 1.27      
20 A' 259 257 1.13      
21 A" 3140 3119 0.09      
22 A" 3064 3043 21.21      
23 A" 1416 1406 2.14      
24 A" 1158 1150 0.79      
25 A" 1086 1079 2.77      
26 A" 1028 1021 6.44      
27 A" 984 977 7.89      
28 A" 885 879 4.01      
29 A" 874 868 42.74      
30 A" 805 799 5.81      
31 A" 660 656 6.27      
32 A" 302 300 1.00      
33 A" 123 122 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 24383.4 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 24215.2 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 PBEPBEultrafine/cc-pVTZ
ABC
0.50542 0.10128 0.09741

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.393 0.284 0.000
C2 0.253 -1.038 0.000
C3 -0.386 -2.214 0.000
C4 0.253 1.439 0.750
C5 0.253 1.439 -0.750
H6 -1.484 0.266 0.000
H7 1.350 -1.029 0.000
H8 0.158 -3.158 0.000
H9 -1.477 -2.270 0.000
H10 -0.407 2.131 1.272
H11 1.192 1.235 1.264
H12 -0.407 2.131 -1.272
H13 1.192 1.235 -1.264

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.47182.49831.52101.52101.09162.18203.48612.77472.24202.23902.24202.2390
C21.47181.33822.58832.58832.17261.09672.12192.12353.47782.76503.47782.7650
C32.49831.33823.78363.78362.71252.10181.08961.09214.52703.99764.52703.9976
C41.52102.58833.78361.50002.22642.80274.65874.16081.08911.08972.23632.2317
C51.52102.58833.78361.50002.22642.80274.65874.16082.23632.23171.08911.0897
H61.09162.17262.71252.22642.22643.11603.79772.53622.50103.11422.50103.1142
H72.18201.09672.10182.80272.80273.11602.43993.08703.83212.59743.83212.5974
H83.48612.12191.08964.65874.65873.79772.43991.86045.46874.68635.46874.6863
H92.77472.12351.09214.16084.16082.53623.08701.86044.70414.58284.70414.5828
H102.24203.47784.52701.08912.23632.50103.83215.46874.70411.83272.54343.1289
H112.23902.76503.99761.08972.23173.11422.59744.68634.58281.83273.12892.5286
H122.24203.47784.52702.23631.08912.50103.83215.46874.70412.54343.12891.8327
H132.23902.76503.99762.23171.08973.11422.59744.68634.58283.12892.52861.8327

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.441 C1 C2 H7 115.543
C1 C4 C5 60.456 C1 C4 H10 117.451
C1 C4 H11 117.145 C1 C5 C4 60.456
C1 C5 H12 117.451 C1 C5 H13 117.145
C2 C1 C4 119.719 C2 C1 C5 119.719
C2 C1 H6 115.083 C2 C3 H8 121.510
C2 C3 H9 121.470 C3 C2 H7 119.017
C4 C1 H6 115.933 C4 C5 H12 118.621
C4 C5 H13 118.165 C5 C1 H6 115.933
C5 C4 H10 118.621 C5 C4 H11 118.165
H8 C3 H9 117.020 H10 C4 H11 114.520
H12 C5 H13 114.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.003      
2 C -0.075      
3 C -0.276      
4 C -0.200      
5 C -0.200      
6 H 0.085      
7 H 0.088      
8 H 0.102      
9 H 0.094      
10 H 0.097      
11 H 0.095      
12 H 0.097      
13 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.017 0.641 0.000 0.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.879 -1.026 0.000
y -1.026 -31.924 0.000
z 0.000 0.000 -33.950
Traceless
 xyz
x 3.058 -1.026 0.000
y -1.026 -0.009 0.000
z 0.000 0.000 -3.049
Polar
3z2-r2-6.097
x2-y22.045
xy-1.026
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.998 0.959 0.000
y 0.959 12.075 0.000
z 0.000 0.000 6.957


<r2> (average value of r2) Å2
<r2> 135.087
(<r2>)1/2 11.623