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All results from a given calculation for CH (Methylidyne)

using model chemistry: HF/6-311G**

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/6-311G**
 hartrees
Energy at 0K-38.277168
Energy at 298.15K 
HF Energy-38.277168
Nuclear repulsion energy2.862689
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/6-311G**
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 3029 2752 152.18 150.82 0.50 0.67

Unscaled Zero Point Vibrational Energy (zpe) 1514.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 1375.8 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/6-311G**
B
14.73935

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.158
H2 0.000 0.000 -0.951

Atom - Atom Distances (Å)
  C1 H2
C11.1091
H21.1091

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 H 0.084      


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 -1.666 1.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.522 0.000 0.000
y 0.000 -5.504 0.000
z 0.000 0.000 -7.707
Traceless
 xyz
x -0.916 0.000 0.000
y 0.000 2.110 0.000
z 0.000 0.000 -1.194
Polar
3z2-r2-2.388
x2-y2-2.017
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.350 0.000 0.000
y 0.000 1.183 0.000
z 0.000 0.000 1.856


<r2> (average value of r2) Å2
<r2> 5.371
(<r2>)1/2 2.318

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-38.277168
Energy at 298.15K 
HF Energy-38.277168
Nuclear repulsion energy2.862689
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/6-311G**
Rotational Constants (cm-1) from geometry optimized at HF/6-311G**
B
14.73935

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-38.286560
Energy at 298.15K-38.285208
HF Energy-38.286560
Nuclear repulsion energy2.958826
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/6-311G**
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 3353 3046 24.86      

Unscaled Zero Point Vibrational Energy (zpe) 1676.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 1522.9 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/6-311G**
B
15.74595

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

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 -0.920

Atom - Atom Distances (Å)
  C1 H2
C11.0731
H21.0731

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 H 0.173      


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 -0.553 0.553
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.191 0.000 0.000
y 0.000 -7.191 0.000
z 0.000 0.000 -5.424
Traceless
 xyz
x -0.883 0.000 0.000
y 0.000 -0.883 0.000
z 0.000 0.000 1.766
Polar
3z2-r23.533
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 0.831 0.000 0.000
y 0.000 0.831 0.000
z 0.000 0.000 1.273


<r2> (average value of r2) Å2
<r2> 5.111
(<r2>)1/2 2.261