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All results from a given calculation for CH4 (Methane)

using model chemistry: TPSSh/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-40.537721
Energy at 298.15K-40.540737
HF Energy-40.537721
Nuclear repulsion energy13.437048
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 TPSSh/aug-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 A1 3024 2919 0.00 226.58 0.00 0.00
2 E 1571 1516 0.00 2.94 0.75 0.86
2 E 1571 1516 0.00 2.94 0.75 0.86
3 T2 3131 3022 26.22 48.28 0.75 0.86
3 T2 3131 3022 26.22 48.28 0.75 0.86
3 T2 3131 3022 26.22 48.28 0.75 0.86
4 T2 1350 1303 9.67 0.05 0.75 0.86
4 T2 1350 1303 9.67 0.05 0.75 0.86
4 T2 1350 1303 9.67 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9804.2 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 9463.0 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 TPSSh/aug-cc-pVTZ
ABC
5.28076 5.28076 5.28076

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
H2 0.629 0.629 0.629
H3 -0.629 -0.629 0.629
H4 -0.629 0.629 -0.629
H5 0.629 -0.629 -0.629

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5
C11.08991.08991.08991.0899
H21.08991.77971.77971.7797
H31.08991.77971.77971.7797
H41.08991.77971.77971.7797
H51.08991.77971.77971.7797

picture of Methane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 H3 109.471 H2 C1 H4 109.471
H2 C1 H5 109.471 H3 C1 H4 109.471
H3 C1 H5 109.471 H4 C1 H5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.607      
2 H 0.152      
3 H 0.152      
4 H 0.152      
5 H 0.152      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.513 0.000 0.000
y 0.000 2.513 0.000
z 0.000 0.000 2.513


<r2> (average value of r2) Å2
<r2> 9.997
(<r2>)1/2 3.162