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

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-194.100991
Energy at 298.15K 
HF Energy-194.100991
Nuclear repulsion energy177.571637
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 M06-2X/3-21G*
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' 3208 3039 0.00      
2 A1' 3114 2949 0.00      
3 A1' 1575 1492 0.00      
4 A1' 1133 1073 0.00      
5 A1' 944 894 0.00      
6 A1" 1031 976 0.00      
7 A2' 3180 3012 0.00      
8 A2' 957 907 0.00      
9 A2" 3199 3030 60.50      
10 A2" 1272 1205 48.63      
11 A2" 849 804 7.03      
12 E' 3186 3017 34.53      
12 E' 3186 3017 34.71      
13 E' 3109 2945 41.24      
13 E' 3109 2945 41.04      
14 E' 1529 1448 1.54      
14 E' 1529 1448 1.55      
15 E' 1278 1211 3.37      
15 E' 1278 1210 3.37      
16 E' 1119 1060 0.04      
16 E' 1119 1060 0.04      
17 E' 921 872 1.28      
17 E' 921 872 1.27      
18 E' 554 525 0.20      
18 E' 554 525 0.19      
19 E" 1260 1193 0.00      
19 E" 1260 1193 0.00      
20 E" 1173 1111 0.00      
20 E" 1172 1111 0.00      
21 E" 1075 1018 0.00      
21 E" 1075 1018 0.00      
22 E" 795 753 0.00      
22 E" 795 753 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26226.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 24841.6 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 M06-2X/3-21G*
ABC
0.23533 0.23533 0.20429

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.957
C2 0.000 1.255 0.000
C3 1.086 -0.627 0.000
C4 -1.086 -0.627 0.000
C5 0.000 0.000 -0.957
H6 0.000 0.000 2.041
H7 0.000 0.000 -2.041
H8 0.910 1.857 0.000
H9 -0.910 1.857 0.000
H10 1.153 -1.717 0.000
H11 2.063 -0.140 0.000
H12 -2.063 -0.140 0.000
H13 -1.153 -1.717 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.57781.57781.57781.91381.08452.99832.27862.27862.27862.27862.27862.2786
C21.57782.17292.17291.57782.39612.39611.09151.09153.18712.49032.49033.1871
C31.57782.17292.17291.57782.39612.39612.49033.18711.09151.09153.18712.4903
C41.57782.17292.17291.57782.39612.39613.18712.49032.49033.18711.09151.0915
C51.91381.57781.57781.57782.99831.08452.27862.27862.27862.27862.27862.2786
H61.08452.39612.39612.39612.99834.08282.90582.90582.90582.90582.90582.9058
H72.99832.39612.39612.39611.08454.08282.90582.90582.90582.90582.90582.9058
H82.27861.09152.49033.18712.27862.90582.90581.82063.58172.30583.58174.1263
H92.27861.09153.18712.49032.27862.90582.90581.82064.12633.58172.30583.5817
H102.27863.18711.09152.49032.27862.90582.90583.58174.12631.82063.58172.3058
H112.27862.49031.09153.18712.27862.90582.90582.30583.58171.82064.12633.5817
H122.27862.49033.18711.09152.27862.90582.90583.58172.30583.58174.12631.8206
H132.27863.18712.49031.09152.27862.90582.90584.12633.58172.30583.58171.8206

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 74.671 C1 C2 H8 116.022
C1 C2 H9 116.022 C1 C3 C5 74.671
C1 C3 H10 116.022 C1 C3 H11 116.022
C1 C4 C5 74.671 C1 C4 H12 116.022
C1 C4 H13 116.022 C2 C1 C3 87.035
C2 C1 C4 87.035 C2 C1 H6 127.336
C2 C5 C3 87.035 C2 C5 C4 87.035
C2 C5 H7 127.336 C3 C1 C4 87.035
C3 C1 H6 127.336 C3 C5 C4 87.035
C3 C5 H7 127.336 C4 C1 H6 127.336
C4 C5 H7 127.336 C5 C2 H8 116.022
C5 C2 H9 116.022 C5 C3 H10 116.022
C5 C3 H11 116.022 C5 C4 H12 116.022
C5 C4 H13 116.022 H8 C2 H9 113.022
H10 C3 H11 113.022 H12 C4 H13 113.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 C -0.229      
3 C -0.229      
4 C -0.229      
5 C -0.405      
6 H 0.173      
7 H 0.173      
8 H 0.192      
9 H 0.192      
10 H 0.192      
11 H 0.192      
12 H 0.192      
13 H 0.192      


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 -31.808 0.000 0.000
y 0.000 -31.808 0.000
z 0.000 0.000 -32.152
Traceless
 xyz
x 0.172 0.000 0.000
y 0.000 0.172 0.000
z 0.000 0.000 -0.344
Polar
3z2-r2-0.688
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 7.086 0.000 0.000
y 0.000 7.086 0.000
z 0.000 0.000 6.135


<r2> (average value of r2) Å2
<r2> 93.248
(<r2>)1/2 9.656