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

using model chemistry: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-195.350797
Energy at 298.15K-195.359976
HF Energy-195.350797
Nuclear repulsion energy176.188709
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 B3LYPultrafine/cc-pVTZ
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' 3188 3082 28.12      
2 A' 3172 3066 5.68      
3 A' 3102 2999 50.98      
4 A' 3091 2988 25.17      
5 A' 3041 2939 68.32      
6 A' 1511 1460 1.16      
7 A' 1488 1439 2.13      
8 A' 1365 1319 1.05      
9 A' 1242 1200 1.69      
10 A' 1216 1175 0.06      
11 A' 1131 1093 0.65      
12 A' 1029 995 0.04      
13 A' 981 948 3.42      
14 A' 937 905 6.76      
15 A' 902 872 0.72      
16 A' 786 760 1.27      
17 A' 769 743 7.35      
18 A' 417 403 0.48      
19 A" 3165 3060 26.01      
20 A" 3084 2981 2.00      
21 A" 3032 2931 52.54      
22 A" 1486 1436 0.42      
23 A" 1305 1262 5.64      
24 A" 1269 1227 0.98      
25 A" 1226 1185 0.02      
26 A" 1128 1090 0.06      
27 A" 1084 1048 2.60      
28 A" 1060 1024 1.51      
29 A" 990 957 4.19      
30 A" 937 905 0.03      
31 A" 792 766 14.46      
32 A" 689 666 0.04      
33 A" 270 261 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 25440.3 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 24593.1 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 B3LYPultrafine/cc-pVTZ
ABC
0.30655 0.20409 0.15956

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.244 -0.537 0.765
C2 -0.244 -0.537 -0.765
C3 -0.244 0.994 0.782
C4 -0.244 0.994 -0.782
C5 0.939 -1.049 0.000
H6 -0.797 -1.172 1.442
H7 -0.797 -1.172 -1.442
H8 0.607 1.465 1.277
H9 0.607 1.465 -1.277
H10 -1.161 1.417 1.188
H11 -1.161 1.417 -1.188
H12 1.871 -0.494 0.000
H13 1.062 -2.124 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52961.53072.17571.49911.08062.36212.23432.98322.19942.91082.25002.1933
C21.52962.17571.53071.49912.36211.08062.98322.23432.91082.19942.25002.1933
C31.53072.17571.56302.48692.33063.15281.09182.27701.08842.21352.70193.4697
C42.17571.53071.56302.48693.15282.33062.27701.09182.21351.08842.70193.4697
C51.49911.49912.48692.48692.26022.26022.83922.83923.45023.45021.08541.0818
H61.08062.36212.33063.15282.26022.88432.99154.03942.62673.70873.10812.5383
H72.36211.08063.15282.33062.26022.88434.03942.99153.70872.62673.10812.5383
H82.23432.98321.09182.27702.83922.99154.03942.55451.77063.03412.65823.8362
H92.98322.23432.27701.09182.83924.03942.99152.55453.03411.77062.65823.8362
H102.19942.91081.08842.21353.45022.62673.70871.77063.03412.37663.77614.3467
H112.91082.19942.21351.08843.45023.70872.62673.03411.77062.37663.77614.3467
H122.25002.25002.70192.70191.08543.10813.10812.65822.65823.77613.77611.8201
H132.19332.19333.46973.46971.08182.53832.53833.83623.83624.34674.34671.8201

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 90.626 C1 C2 C5 59.325
C1 C2 H7 128.814 C1 C3 C4 89.374
C1 C3 H8 115.852 C1 C3 H10 113.147
C1 C5 C2 61.351 C1 C5 H12 120.208
C1 C5 H13 115.436 C2 C1 C3 90.626
C2 C1 C5 59.325 C2 C1 H6 128.814
C2 C4 C3 89.374 C2 C4 H9 115.852
C2 C4 H11 113.147 C2 C5 H12 120.208
C2 C5 H13 115.436 C3 C1 C5 110.334
C3 C1 H6 125.503 C3 C4 H9 117.005
C3 C4 H11 111.947 C4 C2 C5 110.334
C4 C2 H7 125.503 C4 C3 H8 117.005
C4 C3 H10 111.947 C5 C1 H6 121.510
C5 C2 H7 121.510 H8 C3 H10 108.608
H9 C4 H11 108.608 H12 C5 H13 114.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.077      
2 C -0.077      
3 C -0.170      
4 C -0.170      
5 C -0.247      
6 H 0.107      
7 H 0.107      
8 H 0.080      
9 H 0.080      
10 H 0.087      
11 H 0.087      
12 H 0.093      
13 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.251 -0.082 0.000 0.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.654 0.161 -0.001
y 0.161 -31.266 -0.002
z -0.001 -0.002 -32.741
Traceless
 xyz
x 0.350 0.161 -0.001
y 0.161 0.932 -0.002
z -0.001 -0.002 -1.281
Polar
3z2-r2-2.563
x2-y2-0.388
xy0.161
xz-0.001
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.594 -0.428 -0.001
y -0.428 8.435 0.000
z -0.001 0.000 7.935


<r2> (average value of r2) Å2
<r2> 98.287
(<r2>)1/2 9.914