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All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/SDD
 hartrees
Energy at 0K-192.638876
Energy at 298.15K-192.645476
Nuclear repulsion energy159.639665
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 HF/SDD
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 3458 3114 11.62      
2 A 3434 3092 39.84      
3 A 3413 3073 11.98      
4 A 3307 2977 39.57      
5 A 1715 1544 13.33      
6 A 1619 1457 2.68      
7 A 1407 1267 0.40      
8 A 1299 1169 3.21      
9 A 1201 1082 4.85      
10 A 1120 1009 2.77      
11 A 1044 940 7.94      
12 A 1002 902 3.75      
13 A 869 782 0.40      
14 A 843 759 119.00      
15 A 478 431 9.76      
16 A 3424 3083 19.23      
17 A 3413 3073 0.11      
18 A 1436 1293 25.12      
19 A 1350 1216 0.04      
20 A 1248 1124 2.66      
21 A 1173 1056 13.79      
22 A 1147 1033 1.14      
23 A 1054 949 8.48      
24 A 976 879 0.56      
25 A 933 840 0.17      
26 A 838 754 49.53      
27 A 501 451 1.65      

Unscaled Zero Point Vibrational Energy (zpe) 21850.5 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 19674.2 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 HF/SDD
ABC
0.36109 0.21468 0.17223

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.270 1.062 0.673
C2 -0.270 1.062 -0.673
C3 -0.270 -0.469 0.765
C4 -0.270 -0.469 -0.765
C5 0.939 -1.014 0.000
H6 -0.177 1.826 1.416
H7 -0.177 1.826 -1.416
H8 -0.861 -1.070 1.421
H9 -0.861 -1.070 -1.421
H10 1.859 -0.461 0.000
H11 1.059 -2.083 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34511.53382.10022.49471.06962.22542.33613.04652.70273.4799
C21.34512.10021.53382.49472.22541.06963.04652.33612.70273.4799
C31.53382.10021.53031.53132.38693.16701.06852.34352.26262.2263
C42.10021.53381.53031.53133.16702.38692.34351.06852.26262.2263
C52.49472.49471.53131.53133.36333.36332.29452.29451.07341.0760
H61.06962.22542.38693.16703.36332.83112.97604.11163.37294.3369
H72.22541.06963.16702.38693.36332.83114.11162.97603.37294.3369
H82.33613.04651.06852.34352.29452.97604.11162.84283.12922.5944
H93.04652.33612.34351.06852.29454.11162.97602.84283.12922.5944
H102.70272.70272.26262.26261.07343.37293.37293.12923.12921.8092
H113.47993.47992.22632.22631.07604.33694.33692.59442.59441.8092

picture of Bicyclo[2.1.0]pent-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 93.461 C1 C2 H7 133.997
C1 C3 C4 86.539 C1 C3 C5 108.961
C1 C3 H8 126.797 C2 C1 C3 93.461
C2 C1 H6 133.997 C2 C4 C3 86.539
C2 C4 C5 108.961 C2 C4 H9 126.797
C3 C1 H6 132.130 C3 C4 C5 60.020
C3 C4 H9 127.892 C3 C5 C4 59.959
C3 C5 H10 119.578 C3 C5 H11 116.175
C4 C2 H7 132.130 C4 C3 C5 60.020
C4 C3 H8 127.892 C4 C5 H10 119.578
C4 C5 H11 116.175 C5 C3 H8 122.919
C5 C4 H9 122.919 H10 C5 H11 114.646
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.203      
2 C -0.203      
3 C -0.249      
4 C -0.249      
5 C -0.389      
6 H 0.216      
7 H 0.216      
8 H 0.225      
9 H 0.225      
10 H 0.192      
11 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.247 -0.417 0.000 0.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.504 0.754 0.000
y 0.754 -28.718 0.000
z 0.000 0.000 -30.212
Traceless
 xyz
x -3.039 0.754 0.000
y 0.754 2.639 0.000
z 0.000 0.000 0.399
Polar
3z2-r20.799
x2-y2-3.785
xy0.754
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.813 -0.307 0.000
y -0.307 7.582 0.000
z 0.000 0.000 3.678


<r2> (average value of r2) Å2
<r2> 93.508
(<r2>)1/2 9.670