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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-155.780263
Energy at 298.15K-155.786028
Nuclear repulsion energy109.445279
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 HSEh1PBE/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 3176 3020 12.89      
2 A1 3149 2995 12.22      
3 A1 1883 1791 4.69      
4 A1 1511 1437 0.04      
5 A1 1467 1395 0.30      
6 A1 1105 1050 2.05      
7 A1 1054 1003 5.38      
8 A1 776 738 5.21      
9 A2 3221 3063 0.00      
10 A2 1185 1127 0.00      
11 A2 969 922 0.00      
12 A2 621 590 0.00      
13 B1 3234 3075 16.77      
14 B1 1110 1056 0.31      
15 B1 919 874 42.57      
16 B1 765 727 1.60      
17 B1 295 280 3.12      
18 B2 3258 3098 12.65      
19 B2 3148 2994 15.43      
20 B2 1473 1400 1.16      
21 B2 1163 1106 8.79      
22 B2 1085 1032 3.44      
23 B2 926 880 11.87      
24 B2 354 337 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 18921.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 17994.1 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 HSEh1PBE/6-31G*
ABC
0.65651 0.22942 0.18236

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.637
C2 0.000 0.000 0.316
H3 0.000 0.928 2.204
H4 0.000 -0.928 2.204
C5 0.000 0.765 -0.932
C6 0.000 -0.765 -0.932
H7 0.913 1.274 -1.236
H8 -0.913 1.274 -1.236
H9 -0.913 -1.274 -1.236
H10 0.913 -1.274 -1.236

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32011.08731.08732.67982.67983.27263.27263.27263.2726
C21.32012.10292.10291.46391.46392.20632.20632.20632.2063
H31.08732.10291.85533.13973.56313.57593.57594.18514.1851
H41.08732.10291.85533.56313.13974.18514.18513.57593.5759
C52.67981.46393.13973.56311.52971.08881.08882.25472.2547
C62.67981.46393.56313.13971.52972.25472.25471.08881.0888
H73.27262.20633.57594.18511.08882.25471.82563.13482.5484
H83.27262.20633.57594.18511.08882.25471.82562.54843.1348
H93.27262.20634.18513.57592.25471.08883.13482.54841.8256
H103.27262.20634.18513.57592.25471.08882.54843.13481.8256

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.502 C1 C2 C6 148.502
C2 C1 H3 121.441 C2 C1 H4 121.441
C2 C5 C6 58.502 C2 C5 H7 118.878
C2 C5 H8 118.878 C2 C6 C5 58.502
C2 C6 H9 118.878 C2 C6 H10 118.878
H3 C1 H4 117.119 C5 C2 C6 62.996
C5 C6 H9 117.894 C5 C6 H10 117.894
C6 C5 H7 117.894 C6 C5 H8 117.894
H7 C5 H8 113.938 H9 C6 H10 113.938
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.484      
2 C 0.198      
3 H 0.168      
4 H 0.168      
5 C -0.407      
6 C -0.407      
7 H 0.191      
8 H 0.191      
9 H 0.191      
10 H 0.191      


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 -0.420 0.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.833 0.000 0.000
y 0.000 -23.793 0.000
z 0.000 0.000 -24.088
Traceless
 xyz
x -0.892 0.000 0.000
y 0.000 0.668 0.000
z 0.000 0.000 0.225
Polar
3z2-r20.449
x2-y2-1.040
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.956 0.000 0.000
y 0.000 5.755 0.000
z 0.000 0.000 8.193


<r2> (average value of r2) Å2
<r2> 76.621
(<r2>)1/2 8.753