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

using model chemistry: B2PLYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at B2PLYP/Def2TZVPP
 hartrees
Energy at 0K-195.143510
Energy at 298.15K 
HF Energy-194.866246
Nuclear repulsion energy179.731247
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 B2PLYP/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 3126 3126 0.00      
2 A1' 3069 3069 0.00      
3 A1' 1562 1562 0.00      
4 A1' 1127 1127 0.00      
5 A1' 911 911 0.00      
6 A1" 1010 1010 0.00      
7 A2' 3128 3128 0.00      
8 A2' 972 972 0.00      
9 A2" 3121 3121 124.23      
10 A2" 1257 1257 38.60      
11 A2" 852 852 4.18      
12 E' 3133 3133 64.45      
12 E' 3133 3133 64.45      
13 E' 3064 3064 79.07      
13 E' 3064 3064 79.08      
14 E' 1512 1512 0.47      
14 E' 1512 1512 0.47      
15 E' 1268 1268 2.04      
15 E' 1268 1268 2.04      
16 E' 1123 1123 0.37      
16 E' 1123 1123 0.37      
17 E' 908 908 0.46      
17 E' 908 908 0.46      
18 E' 542 542 0.16      
18 E' 542 542 0.16      
19 E" 1222 1222 0.00      
19 E" 1222 1222 0.00      
20 E" 1151 1151 0.00      
20 E" 1151 1151 0.00      
21 E" 1036 1036 0.00      
21 E" 1036 1036 0.00      
22 E" 788 788 0.00      
22 E" 788 788 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25814.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25814.0 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 B2PLYP/Def2TZVPP
ABC
0.24183 0.24183 0.20896

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.938
C2 0.000 1.237 0.000
C3 1.072 -0.619 0.000
C4 -1.072 -0.619 0.000
C5 0.000 0.000 -0.938
H6 0.000 0.000 2.025
H7 0.000 0.000 -2.025
H8 0.902 1.848 0.000
H9 -0.902 1.848 0.000
H10 1.149 -1.705 0.000
H11 2.051 -0.143 0.000
H12 -2.051 -0.143 0.000
H13 -1.149 -1.705 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55251.55251.55251.87561.08712.96272.25982.25982.25982.25982.25982.2598
C21.55252.14302.14301.55252.37302.37301.08911.08913.15872.47212.47213.1587
C31.55252.14302.14301.55252.37302.37302.47213.15871.08911.08913.15872.4721
C41.55252.14302.14301.55252.37302.37303.15872.47212.47213.15871.08911.0891
C51.87561.55251.55251.55252.96271.08712.25982.25982.25982.25982.25982.2598
H61.08712.37302.37302.37302.96274.04992.88582.88582.88582.88582.88582.8858
H72.96272.37302.37302.37301.08714.04992.88582.88582.88582.88582.88582.8858
H82.25981.08912.47213.15872.25982.88582.88581.80393.56122.29833.56124.1022
H92.25981.08913.15872.47212.25982.88582.88581.80394.10223.56122.29833.5612
H102.25983.15871.08912.47212.25982.88582.88583.56124.10221.80393.56122.2983
H112.25982.47211.08913.15872.25982.88582.88582.29833.56121.80394.10223.5612
H122.25982.47213.15871.08912.25982.88582.88583.56122.29833.56124.10221.8039
H132.25983.15872.47211.08912.25982.88582.88584.10223.56122.29833.56121.8039

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 74.320 C1 C2 H8 116.530
C1 C2 H9 116.530 C1 C3 C5 74.320
C1 C3 H10 116.530 C1 C3 H11 116.530
C1 C4 C5 74.320 C1 C4 H12 116.530
C1 C4 H13 116.530 C2 C1 C3 87.289
C2 C1 C4 87.289 C2 C1 H6 127.160
C2 C5 C3 87.289 C2 C5 C4 87.289
C2 C5 H7 127.160 C3 C1 C4 87.289
C3 C1 H6 127.160 C3 C5 C4 87.289
C3 C5 H7 127.160 C4 C1 H6 127.160
C4 C5 H7 127.160 C5 C2 H8 116.530
C5 C2 H9 116.530 C5 C3 H10 116.530
C5 C3 H11 116.530 C5 C4 H12 116.530
C5 C4 H13 116.530 H8 C2 H9 111.824
H10 C3 H11 111.824 H12 C4 H13 111.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.094      
2 C -0.127      
3 C -0.127      
4 C -0.127      
5 C -0.094      
6 H 0.104      
7 H 0.104      
8 H 0.060      
9 H 0.060      
10 H 0.060      
11 H 0.060      
12 H 0.060      
13 H 0.060      


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 -32.313 0.000 0.000
y 0.000 -32.313 0.000
z 0.000 0.000 -32.505
Traceless
 xyz
x 0.096 0.000 0.000
y 0.000 0.096 0.000
z 0.000 0.000 -0.193
Polar
3z2-r2-0.385
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 8.423 0.000 0.000
y 0.000 8.423 0.000
z 0.000 0.000 7.682


<r2> (average value of r2) Å2
<r2> 91.896
(<r2>)1/2 9.586