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All results from a given calculation for CH (Methylidyne)

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Π1/2
3 1 yes C*V 4Σ-

State 1 (2Π1/2)

Jump to S2C1 S3C1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-38.271345
Energy at 298.15K 
HF Energy-38.271345
Nuclear repulsion energy2.859770
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 HF/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3028 2742 131.83 116.94 0.44 0.61

Unscaled Zero Point Vibrational Energy (zpe) 1513.9 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 1370.9 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 HF/6-31G(2df,p)
B
14.70931

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.159
H2 0.000 0.000 -0.952

Atom - Atom Distances (Å)
  C1 H2
C11.1103
H21.1103

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.155      
2 H 0.155      


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 -1.523 1.523
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.432 0.000 0.000
y 0.000 -7.365 0.000
z 0.000 0.000 -7.456
Traceless
 xyz
x 1.978 0.000 0.000
y 0.000 -0.921 0.000
z 0.000 0.000 -1.058
Polar
3z2-r2-2.116
x2-y21.933
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.208 0.000 0.000
y 0.000 1.260 0.000
z 0.000 0.000 1.781


<r2> (average value of r2) Å2
<r2> 5.273
(<r2>)1/2 2.296

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-38.271345
Energy at 298.15K 
HF Energy-38.271345
Nuclear repulsion energy2.859770
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 HF/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at HF/6-31G(2df,p)
B
14.70931

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-38.279733
Energy at 298.15K-38.278381
HF Energy-38.279733
Nuclear repulsion energy2.961566
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 HF/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3375 3056 22.67      

Unscaled Zero Point Vibrational Energy (zpe) 1687.2 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 1527.8 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 HF/6-31G(2df,p)
B
15.77512

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.153
H2 0.000 0.000 -0.919

Atom - Atom Distances (Å)
  C1 H2
C11.0721
H21.0721

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.217      
2 H 0.217      


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 -0.546 0.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.004 0.000 0.000
y 0.000 -7.004 0.000
z 0.000 0.000 -5.318
Traceless
 xyz
x -0.843 0.000 0.000
y 0.000 -0.843 0.000
z 0.000 0.000 1.686
Polar
3z2-r23.372
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 0.889 0.000 0.000
y 0.000 0.889 0.000
z 0.000 0.000 1.356


<r2> (average value of r2) Å2
<r2> 5.009
(<r2>)1/2 2.238