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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-195.330204
Energy at 298.15K 
HF Energy-195.330204
Nuclear repulsion energy179.505222
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/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 A1' 3089 2989 0.00      
2 A1' 3041 2943 0.00      
3 A1' 1553 1503 0.00      
4 A1' 1118 1082 0.00      
5 A1' 906 877 0.00      
6 A1" 1004 971 0.00      
7 A2' 3094 2994 0.00      
8 A2' 968 937 0.00      
9 A2" 3084 2984 136.83      
10 A2" 1251 1210 39.64      
11 A2" 844 816 3.45      
12 E' 3099 2998 71.66      
12 E' 3099 2998 71.66      
13 E' 3036 2937 83.32      
13 E' 3036 2937 83.32      
14 E' 1503 1454 0.48      
14 E' 1503 1454 0.48      
15 E' 1257 1216 2.09      
15 E' 1257 1216 2.09      
16 E' 1116 1079 0.28      
16 E' 1116 1079 0.28      
17 E' 897 868 0.41      
17 E' 897 868 0.41      
18 E' 541 523 0.20      
18 E' 541 523 0.20      
19 E" 1215 1175 0.00      
19 E" 1215 1175 0.00      
20 E" 1143 1106 0.00      
20 E" 1143 1106 0.00      
21 E" 1028 995 0.00      
21 E" 1028 995 0.00      
22 E" 773 748 0.00      
22 E" 773 748 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25583.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 24752.1 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/aug-cc-pVTZ
ABC
0.24125 0.24125 0.20828

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.938
C2 0.000 1.239 0.000
C3 1.073 -0.620 0.000
C4 -1.073 -0.620 0.000
C5 0.000 0.000 -0.938
H6 0.000 0.000 2.027
H7 0.000 0.000 -2.027
H8 0.902 1.852 0.000
H9 -0.902 1.852 0.000
H10 1.153 -1.707 0.000
H11 2.055 -0.145 0.000
H12 -2.055 -0.145 0.000
H13 -1.153 -1.707 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55431.55431.55431.87641.08862.96502.26342.26342.26342.26342.26342.2634
C21.55432.14642.14641.55432.37562.37561.09011.09013.16362.47752.47753.1636
C31.55432.14642.14641.55432.37562.37562.47753.16361.09011.09013.16362.4775
C41.55432.14642.14641.55432.37562.37563.16362.47752.47753.16361.09011.0901
C51.87641.55431.55431.55432.96501.08862.26342.26342.26342.26342.26342.2634
H61.08862.37562.37562.37562.96504.05372.88982.88982.88982.88982.88982.8898
H72.96502.37562.37562.37561.08864.05372.88982.88982.88982.88982.88982.8898
H82.26341.09012.47753.16362.26342.88982.88981.80323.56762.30613.56764.1093
H92.26341.09013.16362.47752.26342.88982.88981.80324.10933.56762.30613.5676
H102.26343.16361.09012.47752.26342.88982.88983.56764.10931.80323.56762.3061
H112.26342.47751.09013.16362.26342.88982.88982.30613.56761.80324.10933.5676
H122.26342.47753.16361.09012.26342.88982.88983.56762.30613.56764.10931.8032
H132.26343.16362.47751.09012.26342.88982.88984.10933.56762.30613.56761.8032

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.258 C1 C2 H8 116.625
C1 C2 H9 116.625 C1 C3 C5 74.258
C1 C3 H10 116.625 C1 C3 H11 116.625
C1 C4 C5 74.258 C1 C4 H12 116.625
C1 C4 H13 116.625 C2 C1 C3 87.333
C2 C1 C4 87.333 C2 C1 H6 127.129
C2 C5 C3 87.333 C2 C5 C4 87.333
C2 C5 H7 127.129 C3 C1 C4 87.333
C3 C1 H6 127.129 C3 C5 C4 87.333
C3 C5 H7 127.129 C4 C1 H6 127.129
C4 C5 H7 127.129 C5 C2 H8 116.625
C5 C2 H9 116.625 C5 C3 H10 116.625
C5 C3 H11 116.625 C5 C4 H12 116.625
C5 C4 H13 116.625 H8 C2 H9 111.597
H10 C3 H11 111.597 H12 C4 H13 111.597
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 C -0.549      
3 C -0.549      
4 C -0.549      
5 C -0.128      
6 H 0.472      
7 H 0.472      
8 H 0.160      
9 H 0.160      
10 H 0.160      
11 H 0.160      
12 H 0.160      
13 H 0.160      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.300 0.000 0.000
y 0.000 -32.300 0.000
z 0.000 0.000 -32.438
Traceless
 xyz
x 0.069 0.000 0.000
y 0.000 0.069 0.000
z 0.000 0.000 -0.138
Polar
3z2-r2-0.276
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.716 0.000 0.000
y 0.000 8.716 0.000
z 0.000 0.000 8.097


<r2> (average value of r2) Å2
<r2> 92.080
(<r2>)1/2 9.596