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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-193.879706
Energy at 298.15K-193.886038
Nuclear repulsion energy159.792031
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 B1B95/6-31G
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 3288 3136 5.81      
2 A 3274 3122 36.60      
3 A 3251 3101 6.83      
4 A 3153 3007 25.46      
5 A 1618 1543 4.76      
6 A 1504 1435 2.99      
7 A 1312 1251 2.11      
8 A 1218 1161 2.63      
9 A 1129 1077 2.40      
10 A 1053 1004 1.75      
11 A 981 936 5.35      
12 A 910 868 3.64      
13 A 831 792 0.15      
14 A 764 728 78.88      
15 A 434 414 6.06      
16 A 3266 3115 13.58      
17 A 3243 3093 5.28      
18 A 1331 1269 24.12      
19 A 1250 1192 0.18      
20 A 1136 1083 4.33      
21 A 1071 1021 12.04      
22 A 1061 1011 0.20      
23 A 966 921 6.61      
24 A 913 871 4.50      
25 A 848 808 0.46      
26 A 799 762 31.26      
27 A 466 444 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 20533.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 19582.5 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 B1B95/6-31G
ABC
0.35988 0.21654 0.17338

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.270 1.056 0.675
C2 -0.270 1.056 -0.675
C3 -0.270 -0.466 0.765
C4 -0.270 -0.466 -0.765
C5 0.933 -1.006 0.000
H6 -0.146 1.823 1.427
H7 -0.146 1.823 -1.427
H8 -0.872 -1.082 1.416
H9 -0.872 -1.082 -1.416
H10 1.856 -0.437 0.000
H11 1.063 -2.085 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34961.52472.09502.48071.08152.24092.34173.05042.68363.4784
C21.34962.09501.52472.48072.24091.08153.05042.34172.68363.4784
C31.52472.09501.52951.52412.38633.17171.07962.34442.25942.2322
C42.09501.52471.52951.52413.17172.38632.34441.07962.25942.2322
C52.48072.48071.52411.52413.34743.34742.29482.29481.08481.0870
H61.08152.24092.38633.17173.34742.85412.99474.12903.33934.3329
H72.24091.08153.17172.38633.34742.85414.12902.99473.33934.3329
H82.34173.05041.07962.34442.29482.99474.12902.83133.14032.5985
H93.05042.34172.34441.07962.29484.12902.99472.83133.14032.5985
H102.68362.68362.25942.25941.08483.33933.33933.14033.14031.8297
H113.47843.47842.23222.23221.08704.33294.33292.59852.59851.8297

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 93.382 C1 C2 H7 134.072
C1 C3 C4 86.618 C1 C3 C5 108.911
C1 C3 H8 127.257 C2 C1 C3 93.382
C2 C1 H6 134.072 C2 C4 C3 86.618
C2 C4 C5 108.911 C2 C4 H9 127.257
C3 C1 H6 131.840 C3 C4 C5 59.882
C3 C4 H9 127.076 C3 C5 C4 60.236
C3 C5 H10 119.044 C3 C5 H11 116.496
C4 C2 H7 131.840 C4 C3 C5 59.882
C4 C3 H8 127.076 C4 C5 H10 119.044
C4 C5 H11 116.496 C5 C3 H8 122.692
C5 C4 H9 122.692 H10 C5 H11 114.809
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.101      
2 C -0.101      
3 C -0.235      
4 C -0.235      
5 C -0.292      
6 H 0.151      
7 H 0.151      
8 H 0.165      
9 H 0.165      
10 H 0.171      
11 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.155 -0.382 0.000 0.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.060 0.763 0.000
y 0.763 -27.789 0.000
z 0.000 0.000 -29.417
Traceless
 xyz
x -2.457 0.763 0.000
y 0.763 2.450 0.000
z 0.000 0.000 0.008
Polar
3z2-r20.015
x2-y2-3.271
xy0.763
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.158 -0.456 0.000
y -0.456 7.368 0.000
z 0.000 0.000 7.047


<r2> (average value of r2) Å2
<r2> 87.636
(<r2>)1/2 9.361