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

using model chemistry: wB97X-D/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 wB97X-D/3-21G*
 hartrees
Energy at 0K-192.889170
Energy at 298.15K-192.895497
HF Energy-192.889170
Nuclear repulsion energy159.139759
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 wB97X-D/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' 3307 3134 1.43      
2 A' 3290 3118 17.01      
3 A' 3267 3096 3.63      
4 A' 3167 3002 16.03      
5 A' 1617 1533 4.07      
6 A' 1517 1438 4.25      
7 A' 1287 1220 2.61      
8 A' 1197 1135 3.77      
9 A' 1123 1065 3.43      
10 A' 1033 980 1.15      
11 A' 968 917 4.96      
12 A' 915 867 7.75      
13 A' 811 769 2.84      
14 A' 769 728 82.58      
15 A' 451 428 8.49      
16 A" 3288 3116 4.34      
17 A" 3257 3087 2.75      
18 A" 1325 1256 29.00      
19 A" 1253 1188 0.63      
20 A" 1140 1080 7.36      
21 A" 1076 1020 11.29      
22 A" 1067 1012 2.93      
23 A" 972 921 9.17      
24 A" 889 843 0.38      
25 A" 862 817 0.51      
26 A" 783 742 30.43      
27 A" 463 439 2.11      

Unscaled Zero Point Vibrational Energy (zpe) 20547.2 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 19474.6 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 wB97X-D/3-21G*
ABC
0.35451 0.21509 0.17291

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.273 1.059 0.675
C2 -0.273 1.059 -0.675
C3 -0.273 -0.473 0.768
C4 -0.273 -0.473 -0.768
C5 0.943 -0.999 0.000
H6 -0.144 1.827 1.421
H7 -0.144 1.827 -1.421
H8 -0.877 -1.095 1.409
H9 -0.877 -1.095 -1.409
H10 1.859 -0.420 0.000
H11 1.074 -2.079 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34941.53562.10502.48401.07902.23612.35443.05702.68123.4806
C21.34942.10501.53562.48402.23611.07903.05702.35442.68123.4806
C31.53562.10501.53611.53082.39543.17871.07772.34292.26642.2315
C42.10501.53561.53611.53083.17872.39542.34291.07772.26642.2315
C52.48402.48401.53081.53083.34523.34522.30322.30321.08401.0871
H61.07902.23612.39543.17873.34522.84273.01274.13353.32914.3312
H72.23611.07903.17872.39543.34522.84274.13353.01273.32914.3312
H82.35443.05701.07772.34292.30323.01274.13352.81753.15032.5998
H93.05702.35442.34291.07772.30324.13353.01272.81753.15032.5998
H102.68122.68122.26642.26641.08403.32913.32913.15033.15031.8346
H113.48063.48062.23152.23151.08714.33124.33122.59982.59981.8346

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 93.485 C1 C2 H7 133.787
C1 C3 C4 86.515 C1 C3 C5 108.204
C1 C3 H8 127.689 C2 C1 C3 93.485
C2 C1 H6 133.787 C2 C4 C3 86.515
C2 C4 C5 108.204 C2 C4 H9 127.689
C3 C1 H6 131.954 C3 C4 C5 59.885
C3 C4 H9 126.476 C3 C5 C4 60.230
C3 C5 H10 119.187 C3 C5 H11 115.908
C4 C2 H7 131.954 C4 C3 C5 59.885
C4 C3 H8 126.476 C4 C5 H10 119.187
C4 C5 H11 115.908 C5 C3 H8 123.057
C5 C4 H9 123.057 H10 C5 H11 115.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C -0.153      
3 C -0.318      
4 C -0.318      
5 C -0.352      
6 H 0.204      
7 H 0.204      
8 H 0.214      
9 H 0.214      
10 H 0.232      
11 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.203 -0.364 0.000 0.417
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.517 0.852 0.000
y 0.852 -27.549 0.000
z 0.000 0.000 -29.449
Traceless
 xyz
x -3.017 0.852 0.000
y 0.852 2.934 0.000
z 0.000 0.000 0.084
Polar
3z2-r20.167
x2-y2-3.968
xy0.852
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.759 -0.461 0.000
y -0.461 6.907 0.000
z 0.000 0.000 6.737


<r2> (average value of r2) Å2
<r2> 88.086
(<r2>)1/2 9.385