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All results from a given calculation for CH (Methylidyne)

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-38.280086
Energy at 298.15K 
HF Energy-38.280086
Nuclear repulsion energy2.869615
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/TZVP
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 3040 2762 148.37 164.20 0.54 0.70

Unscaled Zero Point Vibrational Energy (zpe) 1519.7 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 1380.8 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/TZVP
B
14.81076

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

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 -0.948

Atom - Atom Distances (Å)
  C1 H2
C11.1064
H21.1064

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.031      
2 H 0.031      


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 -1.717 1.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.643 0.000 0.000
y 0.000 -5.583 0.000
z 0.000 0.000 -7.902
Traceless
 xyz
x -0.901 0.000 0.000
y 0.000 2.190 0.000
z 0.000 0.000 -1.289
Polar
3z2-r2-2.578
x2-y2-2.060
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.570 0.000 0.000
y 0.000 1.215 0.000
z 0.000 0.000 2.012


<r2> (average value of r2) Å2
<r2> 5.448
(<r2>)1/2 2.334

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-38.280086
Energy at 298.15K 
HF Energy-38.280086
Nuclear repulsion energy2.869615
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/TZVP
Rotational Constants (cm-1) from geometry optimized at HF/TZVP
B
14.81076

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

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-38.289757
Energy at 298.15K-38.288406
HF Energy-38.289757
Nuclear repulsion energy2.962691
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/TZVP
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 3360 3053 27.05      

Unscaled Zero Point Vibrational Energy (zpe) 1679.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 1526.4 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/TZVP
B
15.78711

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

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
C11.0717
H21.0717

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.151      
2 H 0.151      


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 -0.550 0.550
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.259 0.000 0.000
y 0.000 -7.259 0.000
z 0.000 0.000 -5.454
Traceless
 xyz
x -0.902 0.000 0.000
y 0.000 -0.902 0.000
z 0.000 0.000 1.804
Polar
3z2-r23.608
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 0.921 0.000 0.000
y 0.000 0.921 0.000
z 0.000 0.000 1.269


<r2> (average value of r2) Å2
<r2> 5.142
(<r2>)1/2 2.268