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All results from a given calculation for CH4 (Methane)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-40.514458
Energy at 298.15K-40.517477
HF Energy-40.514458
Nuclear repulsion energy13.369654
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 B3LYP/SDD
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 3030 2913 0.00 148.81 0.00 0.00
2 E 1581 1520 0.00 37.60 0.75 0.86
2 E 1581 1520 0.00 37.60 0.75 0.86
3 T2 3169 3046 43.05 52.84 0.75 0.86
3 T2 3169 3046 43.05 52.84 0.75 0.86
3 T2 3169 3046 43.05 52.84 0.75 0.86
4 T2 1385 1331 44.29 3.21 0.75 0.86
4 T2 1385 1331 44.29 3.21 0.75 0.86
4 T2 1385 1331 44.29 3.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9926.3 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 9542.1 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 B3LYP/SDD
ABC
5.22793 5.22793 5.22793

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
H2 0.632 0.632 0.632
H3 -0.632 -0.632 0.632
H4 -0.632 0.632 -0.632
H5 0.632 -0.632 -0.632

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5
C11.09541.09541.09541.0954
H21.09541.78871.78871.7887
H31.09541.78871.78871.7887
H41.09541.78871.78871.7887
H51.09541.78871.78871.7887

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.859      
2 H 0.215      
3 H 0.215      
4 H 0.215      
5 H 0.215      


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 -8.216 0.000 0.000
y 0.000 -8.216 0.000
z 0.000 0.000 -8.216
Traceless
 xyz
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000
Polar
3z2-r20.000
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 1.733 0.000 0.000
y 0.000 1.733 0.000
z 0.000 0.000 1.733


<r2> (average value of r2) Å2
<r2> 9.931
(<r2>)1/2 3.151