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

using model chemistry: HSEh1PBE/3-21G

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/3-21G
 hartrees
Energy at 0K-193.989415
Energy at 298.15K-193.998646
HF Energy-193.989415
Nuclear repulsion energy175.045515
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/3-21G
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' 3270 3150 15.70      
2 A' 3248 3129 1.57      
3 A' 3175 3059 31.69      
4 A' 3157 3042 11.87      
5 A' 3107 2993 37.08      
6 A' 1545 1488 3.33      
7 A' 1516 1461 6.41      
8 A' 1362 1312 0.18      
9 A' 1250 1204 5.02      
10 A' 1230 1184 0.54      
11 A' 1142 1100 1.46      
12 A' 1051 1012 0.11      
13 A' 992 955 6.23      
14 A' 966 931 7.17      
15 A' 911 878 1.63      
16 A' 786 757 1.04      
17 A' 777 748 10.81      
18 A' 436 420 1.34      
19 A" 3251 3132 11.58      
20 A" 3155 3039 0.01      
21 A" 3097 2984 35.12      
22 A" 1522 1466 1.90      
23 A" 1310 1262 13.47      
24 A" 1292 1245 0.99      
25 A" 1250 1204 0.95      
26 A" 1148 1105 3.19      
27 A" 1114 1074 5.39      
28 A" 1084 1044 4.07      
29 A" 1003 966 4.23      
30 A" 953 918 0.01      
31 A" 803 774 17.40      
32 A" 711 685 0.01      
33 A" 271 261 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 25941.5 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 24989.4 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/3-21G
ABC
0.29825 0.20322 0.15878

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.252 -0.550 0.775
C2 -0.252 -0.550 -0.775
C3 -0.252 0.993 0.790
C4 -0.252 0.993 -0.790
C5 0.961 -1.024 0.000
H6 -0.789 -1.188 1.463
H7 -0.789 -1.188 -1.463
H8 0.613 1.452 1.277
H9 0.613 1.452 -1.277
H10 -1.177 1.416 1.189
H11 -1.177 1.416 -1.189
H12 1.864 -0.421 0.000
H13 1.122 -2.098 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55081.54312.19831.51541.08012.38812.23862.99532.21242.92972.25772.2103
C21.55082.19831.54311.51542.38811.08012.99532.23862.92972.21242.25772.2103
C31.54312.19831.58072.48262.34403.18101.09412.28781.09272.22572.66493.4735
C42.19831.54311.58072.48263.18102.34402.28781.09412.22571.09272.66493.4735
C51.51541.51542.48262.48262.28612.28612.80812.80813.45543.45541.08681.0857
H61.08012.38812.34403.18102.28612.92532.99514.05492.64713.73703.12522.5729
H72.38811.08013.18102.34402.28612.92534.05492.99513.73702.64713.12522.5729
H82.23862.99531.09412.28782.80812.99514.05492.55401.79283.04772.58923.8071
H92.99532.23862.28781.09412.80814.05492.99512.55403.04771.79282.58923.8071
H102.21242.92971.09272.22573.45542.64713.73701.79283.04772.37843.74684.3648
H112.92972.21242.22571.09273.45543.73702.64713.04771.79282.37843.74684.3648
H122.25772.25772.66492.66491.08683.12523.12522.58922.58923.74683.74681.8341
H132.21032.21033.47353.47351.08572.57292.57293.80713.80714.36484.36481.8341

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 90.557 C1 C2 C5 59.225
C1 C2 H7 129.517 C1 C3 C4 89.443
C1 C3 H8 115.115 C1 C3 H10 113.033
C1 C5 C2 61.549 C1 C5 H12 119.453
C1 C5 H13 115.373 C2 C1 C3 90.557
C2 C1 C5 59.225 C2 C1 H6 129.517
C2 C4 C3 89.443 C2 C4 H9 115.115
C2 C4 H11 113.033 C2 C5 H12 119.453
C2 C5 H13 115.373 C3 C1 C5 108.525
C3 C1 H6 125.730 C3 C4 H9 116.409
C3 C4 H11 111.409 C4 C2 C5 108.525
C4 C2 H7 125.730 C4 C3 H8 116.409
C4 C3 H10 111.409 C5 C1 H6 122.585
C5 C2 H7 122.585 H8 C3 H10 110.135
H9 C4 H11 110.135 H12 C5 H13 115.173
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.281      
2 C -0.281      
3 C -0.387      
4 C -0.387      
5 C -0.387      
6 H 0.203      
7 H 0.203      
8 H 0.212      
9 H 0.212      
10 H 0.224      
11 H 0.224      
12 H 0.216      
13 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.242 -0.087 0.000 0.257
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.208 0.160 0.000
y 0.160 -30.364 0.000
z 0.000 0.000 -32.316
Traceless
 xyz
x 0.132 0.160 0.000
y 0.160 1.398 0.000
z 0.000 0.000 -1.529
Polar
3z2-r2-3.059
x2-y2-0.844
xy0.160
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.341 -0.413 0.000
y -0.413 6.969 0.000
z 0.000 0.000 6.492


<r2> (average value of r2) Å2
<r2> 98.576
(<r2>)1/2 9.929