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

using model chemistry: B97D3/aug-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 B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-195.218969
Energy at 298.15K-195.228060
HF Energy-195.218969
Nuclear repulsion energy175.874308
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 B97D3/aug-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' 3140 3092 31.92      
2 A' 3120 3072 11.20      
3 A' 3057 3010 56.52      
4 A' 3038 2991 31.35      
5 A' 2989 2943 81.49      
6 A' 1477 1455 1.07      
7 A' 1455 1433 1.76      
8 A' 1336 1315 1.37      
9 A' 1209 1191 1.52      
10 A' 1191 1173 0.01      
11 A' 1109 1092 0.70      
12 A' 1009 993 0.10      
13 A' 961 946 2.89      
14 A' 918 904 6.91      
15 A' 886 872 1.10      
16 A' 769 757 0.37      
17 A' 764 752 7.75      
18 A' 411 405 0.44      
19 A" 3112 3064 32.70      
20 A" 3038 2992 2.07      
21 A" 2979 2934 60.36      
22 A" 1453 1430 0.30      
23 A" 1274 1254 6.04      
24 A" 1236 1217 1.07      
25 A" 1198 1180 0.02      
26 A" 1101 1085 0.03      
27 A" 1049 1033 2.55      
28 A" 1029 1014 0.68      
29 A" 975 960 5.00      
30 A" 916 902 0.06      
31 A" 784 772 12.98      
32 A" 669 659 0.13      
33 A" 264 260 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 24957.2 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 24575.3 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 B97D3/aug-cc-pVTZ
ABC
0.30538 0.20348 0.15915

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.245 -0.537 0.765
C2 -0.245 -0.537 -0.765
C3 -0.245 0.995 0.783
C4 -0.245 0.995 -0.783
C5 0.940 -1.050 0.000
H6 -0.800 -1.175 1.445
H7 -0.800 -1.175 -1.445
H8 0.612 1.466 1.280
H9 0.612 1.466 -1.280
H10 -1.165 1.420 1.192
H11 -1.165 1.420 -1.192
H12 1.875 -0.490 0.000
H13 1.063 -2.129 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.53021.53282.17851.50051.08522.36642.23862.98792.20442.91662.25452.1973
C21.53022.17851.53281.50052.36641.08522.98792.23862.91662.20442.25452.1973
C31.53282.17851.56622.48962.33613.15971.09632.28251.09272.21962.70463.4760
C42.17851.53281.56622.48963.15972.33612.28251.09632.21961.09272.70463.4760
C51.50051.50052.48962.48962.26572.26572.84112.84113.45673.45671.08991.0860
H61.08522.36642.33613.15972.26572.89002.99944.04872.63263.71743.11732.5438
H72.36641.08523.15972.33612.26572.89004.04872.99943.71742.63263.11732.5438
H82.23862.98791.09632.28252.84112.99944.04872.55921.77963.04412.65693.8419
H92.98792.23862.28251.09632.84114.04872.99942.55923.04411.77962.65693.8419
H102.20442.91661.09272.21963.45672.63263.71741.77963.04412.38343.78314.3562
H112.91662.20442.21961.09273.45673.71742.63263.04411.77962.38343.78314.3562
H122.25452.25452.70462.70461.08993.11733.11732.65692.65693.78313.78311.8287
H132.19732.19733.47603.47601.08602.54382.54383.84193.84194.35624.35621.8287

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 90.672 C1 C2 C5 59.343
C1 C2 H7 128.793 C1 C3 C4 89.328
C1 C3 H8 115.750 C1 C3 H10 113.135
C1 C5 C2 61.314 C1 C5 H12 120.162
C1 C5 H13 115.386 C2 C1 C3 90.672
C2 C1 C5 59.343 C2 C1 H6 128.793
C2 C4 C3 89.328 C2 C4 H9 115.750
C2 C4 H11 113.135 C2 C5 H12 120.162
C2 C5 H13 115.386 C3 C1 C5 110.319
C3 C1 H6 125.466 C3 C4 H9 116.931
C3 C4 H11 111.961 C4 C2 C5 110.319
C4 C2 H7 125.466 C4 C3 H8 116.931
C4 C3 H10 111.961 C5 C1 H6 121.551
C5 C2 H7 121.551 H8 C3 H10 108.782
H9 C4 H11 108.782 H12 C5 H13 114.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.135      
2 C -0.135      
3 C -0.244      
4 C -0.244      
5 C -0.614      
6 H 0.320      
7 H 0.320      
8 H 0.122      
9 H 0.122      
10 H 0.096      
11 H 0.096      
12 H 0.161      
13 H 0.134      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.262 -0.085 0.000 0.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.629 0.143 0.000
y 0.143 -31.287 0.000
z 0.000 0.000 -32.730
Traceless
 xyz
x 0.379 0.143 0.000
y 0.143 0.893 0.000
z 0.000 0.000 -1.272
Polar
3z2-r2-2.544
x2-y2-0.342
xy0.143
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.179 -0.435 0.000
y -0.435 9.103 0.000
z 0.000 0.000 8.628


<r2> (average value of r2) Å2
<r2> 98.544
(<r2>)1/2 9.927