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

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-195.138009
Energy at 298.15K 
HF Energy-195.138009
Nuclear repulsion energy177.644754
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 BLYP/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 A1' 3021 2996 0.00      
2 A1' 2976 2951 0.00      
3 A1' 1539 1527 0.00      
4 A1' 1093 1084 0.00      
5 A1' 882 875 0.00      
6 A1" 973 965 0.00      
7 A2' 3026 3001 0.00      
8 A2' 956 948 0.00      
9 A2" 3014 2990 160.62      
10 A2" 1222 1212 22.69      
11 A2" 820 813 2.15      
12 E' 3031 3007 81.04      
12 E' 3031 3007 81.04      
13 E' 2970 2946 83.20      
13 E' 2970 2946 83.20      
14 E' 1490 1478 0.15      
14 E' 1490 1478 0.15      
15 E' 1228 1218 0.56      
15 E' 1228 1218 0.56      
16 E' 1097 1088 0.38      
16 E' 1097 1088 0.38      
17 E' 872 865 0.14      
17 E' 872 865 0.14      
18 E' 532 528 0.22      
18 E' 532 528 0.22      
19 E" 1177 1167 0.00      
19 E" 1177 1167 0.00      
20 E" 1116 1107 0.00      
20 E" 1116 1107 0.00      
21 E" 997 989 0.00      
21 E" 997 989 0.00      
22 E" 746 740 0.00      
22 E" 746 740 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25017.1 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 24814.4 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 BLYP/6-31G*
ABC
0.23631 0.23631 0.20412

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.948
C2 0.000 1.251 0.000
C3 1.083 -0.626 0.000
C4 -1.083 -0.626 0.000
C5 0.000 0.000 -0.948
H6 0.000 0.000 2.050
H7 0.000 0.000 -2.050
H8 0.911 1.874 0.000
H9 -0.911 1.874 0.000
H10 1.167 -1.726 0.000
H11 2.078 -0.148 0.000
H12 -2.078 -0.148 0.000
H13 -1.167 -1.726 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56971.56971.56971.89621.10192.99802.28892.28892.28892.28892.28892.2889
C21.56972.16682.16681.56972.40152.40151.10331.10333.19732.50512.50513.1973
C31.56972.16682.16681.56972.40152.40152.50513.19731.10331.10333.19732.5051
C41.56972.16682.16681.56972.40152.40153.19732.50512.50513.19731.10331.1033
C51.89621.56971.56971.56972.99801.10192.28892.28892.28892.28892.28892.2889
H61.10192.40152.40152.40152.99804.09992.92282.92282.92282.92282.92282.9228
H72.99802.40152.40152.40151.10194.09992.92282.92282.92282.92282.92282.9228
H82.28891.10332.50513.19732.28892.92282.92281.82183.60842.33443.60844.1561
H92.28891.10333.19732.50512.28892.92282.92281.82184.15613.60842.33443.6084
H102.28893.19731.10332.50512.28892.92282.92283.60844.15611.82183.60842.3344
H112.28892.50511.10333.19732.28892.92282.92282.33443.60841.82184.15613.6084
H122.28892.50513.19731.10332.28892.92282.92283.60842.33443.60844.15611.8218
H132.28893.19732.50511.10332.28892.92282.92284.15613.60842.33443.60841.8218

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 74.313 C1 C2 H8 116.728
C1 C2 H9 116.728 C1 C3 C5 74.313
C1 C3 H10 116.728 C1 C3 H11 116.728
C1 C4 C5 74.313 C1 C4 H12 116.728
C1 C4 H13 116.728 C2 C1 C3 87.294
C2 C1 C4 87.294 C2 C1 H6 127.157
C2 C5 C3 87.294 C2 C5 C4 87.294
C2 C5 H7 127.157 C3 C1 C4 87.294
C3 C1 H6 127.157 C3 C5 C4 87.294
C3 C5 H7 127.157 C4 C1 H6 127.157
C4 C5 H7 127.157 C5 C2 H8 116.728
C5 C2 H9 116.728 C5 C3 H10 116.728
C5 C3 H11 116.728 C5 C4 H12 116.728
C5 C4 H13 116.728 H8 C2 H9 111.290
H10 C3 H11 111.290 H12 C4 H13 111.290
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.043      
2 C -0.246      
3 C -0.246      
4 C -0.246      
5 C -0.043      
6 H 0.084      
7 H 0.084      
8 H 0.109      
9 H 0.109      
10 H 0.109      
11 H 0.109      
12 H 0.109      
13 H 0.109      


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 -31.727 0.000 0.000
y 0.000 -31.727 0.000
z 0.000 0.000 -31.964
Traceless
 xyz
x 0.118 0.000 0.000
y 0.000 0.118 0.000
z 0.000 0.000 -0.237
Polar
3z2-r2-0.473
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 7.695 0.000 0.000
y 0.000 7.695 0.000
z 0.000 0.000 6.797


<r2> (average value of r2) Å2
<r2> 93.269
(<r2>)1/2 9.658