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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-192.906533
Energy at 298.15K-192.912864
Nuclear repulsion energy159.269242
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 mPW1PW91/3-21G
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 3305 3155 1.76      
2 A 3287 3137 21.04      
3 A 3286 3137 5.46      
4 A 3266 3118 3.72      
5 A 3253 3105 3.91      
6 A 3160 3016 19.61      
7 A 1600 1527 4.11      
8 A 1507 1439 3.62      
9 A 1315 1255 28.54      
10 A 1278 1220 2.50      
11 A 1243 1186 0.46      
12 A 1197 1143 3.80      
13 A 1133 1081 8.06      
14 A 1119 1068 3.12      
15 A 1069 1021 4.35      
16 A 1061 1013 8.12      
17 A 1033 986 1.32      
18 A 969 925 5.35      
19 A 960 916 9.54      
20 A 908 867 7.51      
21 A 890 849 0.72      
22 A 867 828 0.09      
23 A 819 782 0.36      
24 A 789 753 30.25      
25 A 764 730 83.87      
26 A 464 443 1.86      
27 A 447 426 8.13      

Unscaled Zero Point Vibrational Energy (zpe) 20492.8 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 19562.4 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 mPW1PW91/3-21G
ABC
0.35426 0.21585 0.17341

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.086 -0.674 0.100
C2 -1.086 0.674 0.100
C3 0.357 -0.771 -0.422
C4 0.357 0.771 -0.422
C5 1.250 -0.000 0.558
H6 -1.767 -1.423 0.475
H7 -1.767 1.422 0.475
H8 0.740 -1.427 -1.186
H9 0.740 1.427 -1.185
H10 0.983 -0.000 1.608
H11 2.314 -0.000 0.332

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34831.53682.10722.47411.07922.23622.35643.06612.64723.4735
C21.34832.10721.53682.47422.23621.07923.06602.35642.64733.4736
C31.53682.10721.54171.53442.39543.18181.07732.35812.26012.2348
C42.10721.53681.54171.53443.18182.39542.35811.07732.26012.2348
C52.47412.47421.53441.53443.33663.33672.31042.31041.08321.0874
H61.07922.23622.39543.18183.33662.84513.00694.14273.29674.3238
H72.23621.07923.18182.39543.33672.84514.14263.00693.29684.3239
H82.35643.06601.07732.35812.31043.00694.14262.85403.14642.6109
H93.06612.35642.35811.07732.31044.14273.00692.85403.14642.6109
H102.64722.64732.26012.26011.08323.29673.29683.14643.14641.8438
H113.47353.47362.23482.23481.08744.32384.32392.61092.61091.8438

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 93.608 C1 C2 H7 133.907
C1 C3 C4 86.393 C1 C3 C5 107.333
C1 C3 H8 127.822 C2 C1 C3 93.607
C2 C1 H6 133.908 C2 C4 C3 86.391
C2 C4 C5 107.337 C2 C4 H9 127.821
C3 C1 H6 131.811 C3 C4 C5 59.843
C3 C4 H9 127.525 C3 C5 C4 60.314
C3 C5 H10 118.388 C3 C5 H11 115.903
C4 C2 H7 131.810 C4 C3 C5 59.843
C4 C3 H8 127.526 C4 C5 H10 118.388
C4 C5 H11 115.903 C5 C3 H8 123.465
C5 C4 H9 123.464 H10 C5 H11 116.295
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.148      
2 C -0.148      
3 C -0.324      
4 C -0.324      
5 C -0.361      
6 H 0.203      
7 H 0.203      
8 H 0.216      
9 H 0.216      
10 H 0.237      
11 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.430 -0.000 0.076 0.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.643 0.000 -1.935
y 0.000 -29.485 -0.000
z -1.935 -0.000 -30.589
Traceless
 xyz
x 1.394 0.000 -1.935
y 0.000 0.131 -0.000
z -1.935 -0.000 -1.525
Polar
3z2-r2-3.050
x2-y20.842
xy0.000
xz-1.935
yz-0.000


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


<r2> (average value of r2) Å2
<r2> 87.968
(<r2>)1/2 9.379