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All results from a given calculation for CH3CH (methylmethylene)

using model chemistry: wB97X-D/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 3A"
Energy calculated at wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-78.475837
Energy at 298.15K-78.478478
HF Energy-78.475837
Nuclear repulsion energy31.940133
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 wB97X-D/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3232 3090 6.58      
2 A' 3089 2953 11.42      
3 A' 2988 2856 20.21      
4 A' 1466 1401 6.19      
5 A' 1394 1333 2.73      
6 A' 1116 1067 0.21      
7 A' 1078 1030 1.86      
8 A' 773 739 11.26      
9 A" 3037 2903 19.24      
10 A" 1457 1393 7.14      
11 A" 1000 956 1.13      
12 A" 218 208 30.17      

Unscaled Zero Point Vibrational Energy (zpe) 10423.6 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 9964.9 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 wB97X-D/cc-pVTZ
ABC
4.63330 0.82365 0.80472

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.049 0.854 0.000
C2 0.049 -0.614 0.000
H3 -0.746 1.588 0.000
H4 1.069 -1.004 0.000
H5 -0.456 -1.014 0.886
H6 -0.456 -1.014 -0.886

Atom - Atom Distances (Å)
  C1 C2 H3 H4 H5 H6
C11.46821.08242.11982.12842.1284
C21.46822.34151.09171.09561.0956
H31.08242.34153.16482.76402.7640
H42.11981.09173.16481.76371.7637
H52.12841.09562.76401.76371.7719
H62.12841.09562.76401.76371.7719

picture of methylmethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.949 C1 C2 H5 111.404
C1 C2 H6 111.404 C2 C1 H3 132.692
H4 C2 H5 107.483 H4 C2 H6 107.483
H5 C2 H6 107.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 C -0.197      
3 H 0.137      
4 H 0.099      
5 H 0.093      
6 H 0.093      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.547 -0.709 0.000 0.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.477 -1.183 0.000
y -1.183 -13.605 0.000
z 0.000 0.000 -14.258
Traceless
 xyz
x 0.455 -1.183 0.000
y -1.183 0.262 0.000
z 0.000 0.000 -0.717
Polar
3z2-r2-1.434
x2-y20.128
xy-1.183
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.205 -0.167 0.000
y -0.167 4.275 0.000
z 0.000 0.000 3.052


<r2> (average value of r2) Å2
<r2> 24.529
(<r2>)1/2 4.953