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

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-195.257179
Energy at 298.15K 
HF Energy-195.257179
Nuclear repulsion energy179.820139
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 B3PW91/TZVP
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' 3107 2996 0.00      
2 A1' 3051 2943 0.00      
3 A1' 1548 1493 0.00      
4 A1' 1131 1091 0.00      
5 A1' 909 876 0.00      
6 A1" 1004 968 0.00      
7 A2' 3112 3001 0.00      
8 A2' 963 929 0.00      
9 A2" 3102 2991 130.83      
10 A2" 1255 1210 47.24      
11 A2" 861 830 6.58      
12 E' 3117 3006 67.45      
12 E' 3117 3006 67.44      
13 E' 3047 2938 82.33      
13 E' 3047 2938 82.33      
14 E' 1495 1441 0.65      
14 E' 1495 1441 0.65      
15 E' 1260 1215 2.96      
15 E' 1260 1215 2.96      
16 E' 1113 1073 0.14      
16 E' 1113 1073 0.14      
17 E' 912 880 0.78      
17 E' 912 880 0.78      
18 E' 539 520 0.37      
18 E' 539 520 0.37      
19 E" 1213 1170 0.00      
19 E" 1213 1170 0.00      
20 E" 1146 1105 0.00      
20 E" 1146 1105 0.00      
21 E" 1028 991 0.00      
21 E" 1028 991 0.00      
22 E" 794 766 0.00      
22 E" 794 766 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25685.3 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 24768.3 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 B3PW91/TZVP
ABC
0.24227 0.24227 0.20925

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.936
C2 0.000 1.235 0.000
C3 1.070 -0.618 0.000
C4 -1.070 -0.618 0.000
C5 0.000 0.000 -0.936
H6 0.000 0.000 2.027
H7 0.000 0.000 -2.027
H8 0.904 1.849 0.000
H9 -0.904 1.849 0.000
H10 1.149 -1.708 0.000
H11 2.053 -0.141 0.000
H12 -2.053 -0.141 0.000
H13 -1.149 -1.708 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54991.54991.54991.87181.09092.96272.26092.26092.26092.26092.26092.2609
C21.54992.13992.13991.54992.37372.37371.09271.09273.15932.47202.47203.1593
C31.54992.13992.13991.54992.37372.37372.47203.15931.09271.09273.15932.4720
C41.54992.13992.13991.54992.37372.37373.15932.47202.47203.15931.09271.0927
C51.87181.54991.54991.54992.96271.09092.26092.26092.26092.26092.26092.2609
H61.09092.37372.37372.37372.96274.05362.88852.88852.88852.88862.88862.8885
H72.96272.37372.37372.37371.09094.05362.88852.88852.88852.88862.88862.8885
H82.26091.09272.47203.15932.26092.88852.88851.80873.56472.29783.56474.1065
H92.26091.09273.15932.47202.26092.88852.88851.80874.10653.56472.29783.5647
H102.26093.15931.09272.47202.26092.88852.88853.56474.10651.80873.56472.2978
H112.26092.47201.09273.15932.26092.88862.88862.29783.56471.80874.10653.5647
H122.26092.47203.15931.09272.26092.88862.88863.56472.29783.56474.10651.8087
H132.26093.15932.47201.09272.26092.88852.88854.10653.56472.29783.56471.8087

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 74.290 C1 C2 H8 116.577
C1 C2 H9 116.577 C1 C3 C5 74.290
C1 C3 H10 116.577 C1 C3 H11 116.577
C1 C4 C5 74.290 C1 C4 H12 116.577
C1 C4 H13 116.577 C2 C1 C3 87.311
C2 C1 C4 87.311 C2 C1 H6 127.145
C2 C5 C3 87.311 C2 C5 C4 87.311
C2 C5 H7 127.145 C3 C1 C4 87.311
C3 C1 H6 127.145 C3 C5 C4 87.311
C3 C5 H7 127.145 C4 C1 H6 127.145
C4 C5 H7 127.145 C5 C2 H8 116.577
C5 C2 H9 116.577 C5 C3 H10 116.577
C5 C3 H11 116.577 C5 C4 H12 116.577
C5 C4 H13 116.577 H8 C2 H9 111.711
H10 C3 H11 111.710 H12 C4 H13 111.710
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.108      
2 C -0.419      
3 C -0.419      
4 C -0.419      
5 C 0.108      
6 H 0.141      
7 H 0.141      
8 H 0.126      
9 H 0.126      
10 H 0.126      
11 H 0.126      
12 H 0.126      
13 H 0.126      


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 -31.756 0.000 0.000
y 0.000 -31.756 0.000
z 0.000 0.000 -32.112
Traceless
 xyz
x 0.178 0.000 0.000
y 0.000 0.178 0.000
z 0.000 0.000 -0.357
Polar
3z2-r2-0.713
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 8.256 0.000 0.000
y 0.000 8.256 0.000
z 0.000 0.000 7.412


<r2> (average value of r2) Å2
<r2> 91.524
(<r2>)1/2 9.567