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All results from a given calculation for CH (Methylidyne)

using model chemistry: B3PW91/6-31G*

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 B3PW91/6-31G*
 hartrees
Energy at 0K-38.457862
Energy at 298.15K 
HF Energy-38.457862
Nuclear repulsion energy2.802270
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 B3PW91/6-31G*
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 2815 2693 186.74      

Unscaled Zero Point Vibrational Energy (zpe) 1407.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1346.6 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 B3PW91/6-31G*
B
14.12375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.162
H2 0.000 0.000 -0.971

Atom - Atom Distances (Å)
  C1 H2
C11.1330
H21.1330

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.131      
2 H 0.131      


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 -1.416 1.416
CHELPG        
AIM        
ESP 0.000 0.000 -1.298 1.298


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.293 0.000 0.000
y 0.000 -5.418 0.000
z 0.000 0.000 -7.448
Traceless
 xyz
x -0.860 0.000 0.000
y 0.000 1.952 0.000
z 0.000 0.000 -1.092
Polar
3z2-r2-2.184
x2-y2-1.875
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.046 0.000 0.000
y 0.000 1.037 0.000
z 0.000 0.000 1.911


<r2> (average value of r2) Å2
<r2> 5.298
(<r2>)1/2 2.302

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-38.457862
Energy at 298.15K 
HF Energy-38.457862
Nuclear repulsion energy2.802270
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 B3PW91/6-31G*
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G*
B
14.12375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-38.438175
Energy at 298.15K-38.436824
HF Energy-38.438175
Nuclear repulsion energy2.913649
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 B3PW91/6-31G*
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 3175 3038 31.08      

Unscaled Zero Point Vibrational Energy (zpe) 1587.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 1518.9 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 B3PW91/6-31G*
B
15.26879

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.156
H2 0.000 0.000 -0.934

Atom - Atom Distances (Å)
  C1 H2
C11.0897
H21.0897

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 H 0.230      


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 -0.703 0.703
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.038 0.000 0.000
y 0.000 -7.038 0.000
z 0.000 0.000 -5.207
Traceless
 xyz
x -0.915 0.000 0.000
y 0.000 -0.915 0.000
z 0.000 0.000 1.831
Polar
3z2-r23.662
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 0.659 0.000 0.000
y 0.000 0.659 0.000
z 0.000 0.000 1.333


<r2> (average value of r2) Å2
<r2> 5.032
(<r2>)1/2 2.243