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All results from a given calculation for C5H8 (Bicyclo[2.1.0]pentane)

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-195.060724
Energy at 298.15K-195.069916
Nuclear repulsion energy176.437959
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
4/u)
Dep P Dep U
1 A' 3238 3079 24.31      
2 A' 3219 3062 8.34      
3 A' 3154 2999 47.94      
4 A' 3136 2982 21.14      
5 A' 3086 2935 58.54      
6 A' 1535 1460 1.15      
7 A' 1513 1439 2.48      
8 A' 1400 1331 0.53      
9 A' 1272 1210 1.49      
10 A' 1234 1174 0.21      
11 A' 1153 1097 0.34      
12 A' 1052 1000 0.15      
13 A' 1007 958 2.30      
14 A' 970 922 8.79      
15 A' 933 887 0.84      
16 A' 802 763 4.31      
17 A' 795 756 4.81      
18 A' 417 397 0.75      
19 A" 3211 3054 25.17      
20 A" 3136 2982 0.58      
21 A" 3077 2926 49.33      
22 A" 1506 1432 0.14      
23 A" 1336 1270 5.57      
24 A" 1277 1214 1.37      
25 A" 1240 1180 0.07      
26 A" 1141 1085 0.04      
27 A" 1097 1043 3.51      
28 A" 1070 1017 0.12      
29 A" 1016 966 4.35      
30 A" 948 901 0.27      
31 A" 823 783 14.52      
32 A" 685 652 0.16      
33 A" 267 254 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 25871.1 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 24603.4 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
0.30717 0.20500 0.16063

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 -0.245 -0.536 0.762
C2 -0.245 -0.536 -0.762
C3 -0.245 0.989 0.778
C4 -0.245 0.989 -0.778
C5 0.940 -1.040 0.000
H6 -0.797 -1.176 1.445
H7 -0.797 -1.176 -1.445
H8 0.610 1.462 1.277
H9 0.610 1.462 -1.277
H10 -1.165 1.416 1.188
H11 -1.165 1.416 -1.188
H12 1.874 -0.477 0.000
H13 1.071 -2.120 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52371.52602.16791.49661.08622.36282.23402.98022.19972.90832.25312.1949
C21.52372.16791.52601.49662.36281.08622.98022.23402.90832.19972.25312.1949
C31.52602.16791.55632.47612.33183.15191.09682.27531.09362.21192.69233.4645
C42.16791.52601.55632.47613.15192.33182.27531.09682.21191.09362.69233.4645
C51.49661.49662.47612.47612.26372.26372.82882.82883.44623.44621.09081.0870
H61.08622.36282.33183.15192.26372.88962.99454.04292.63023.71243.11662.5429
H72.36281.08623.15192.33182.26372.88964.04292.99453.71242.63023.11662.5429
H82.23402.98021.09682.27532.82882.99454.04292.55351.77783.03742.64383.8303
H92.98022.23402.27531.09682.82884.04292.99452.55353.03741.77782.64383.8303
H102.19972.90831.09362.21193.44622.63023.71241.77783.03742.37533.77254.3483
H112.90832.19972.21191.09363.44623.71242.63023.03741.77782.37533.77254.3483
H122.25312.25312.69232.69231.09083.11663.11662.64382.64383.77253.77251.8287
H132.19492.19493.46453.46451.08702.54292.54293.83033.83034.34834.34831.8287

picture of Bicyclo[2.1.0]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.613 C1 C2 C5 59.400
C1 C2 H7 128.957 C1 C3 C4 89.387
C1 C3 H8 115.841 C1 C3 H10 113.193
C1 C5 C2 61.201 C1 C5 H12 120.292
C1 C5 H13 115.416 C2 C1 C3 90.613
C2 C1 C5 59.400 C2 C1 H6 128.957
C2 C4 C3 89.387 C2 C4 H9 115.841
C2 C4 H11 113.193 C2 C5 H12 120.292
C2 C5 H13 115.416 C3 C1 C5 110.007
C3 C1 H6 125.584 C3 C4 H9 117.038
C3 C4 H11 111.991 C4 C2 C5 110.007
C4 C2 H7 125.584 C4 C3 H8 117.038
C4 C3 H10 111.991 C5 C1 H6 121.624
C5 C2 H7 121.624 H8 C3 H10 108.512
H9 C4 H11 108.512 H12 C5 H13 114.217
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 -0.156      
2 C -0.156      
3 C -0.330      
4 C -0.330      
5 C -0.368      
6 H 0.164      
7 H 0.164      
8 H 0.162      
9 H 0.162      
10 H 0.171      
11 H 0.171      
12 H 0.168      
13 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.266 -0.080 0.000 0.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.840 0.151 0.000
y 0.151 -30.265 0.000
z 0.000 0.000 -31.983
Traceless
 xyz
x 0.284 0.151 0.000
y 0.151 1.146 0.000
z 0.000 0.000 -1.431
Polar
3z2-r2-2.861
x2-y2-0.575
xy0.151
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.726 -0.373 0.000
y -0.373 7.410 0.000
z 0.000 0.000 6.820


<r2> (average value of r2) Å2
<r2> 97.470
(<r2>)1/2 9.873