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All results from a given calculation for CH (Methylidyne)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-6.037125
Energy at 298.15K 
HF Energy-6.037125
Nuclear repulsion energy1.853270
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/CEP-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 2821 2724 241.36 2107.79 0.48 0.65

Unscaled Zero Point Vibrational Energy (zpe) 1410.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 1362.0 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/CEP-31G*
B
13.89921

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.163
H2 0.000 0.000 -0.979

Atom - Atom Distances (Å)
  C1 H2
C11.1421
H21.1421

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.133      
2 H 0.133      


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 -1.699 1.699
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.603 0.000 0.000
y 0.000 -5.535 0.000
z 0.000 0.000 -7.531
Traceless
 xyz
x -1.070 0.000 0.000
y 0.000 2.032 0.000
z 0.000 0.000 -0.962
Polar
3z2-r2-1.924
x2-y2-2.068
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.169 0.000 0.000
y 0.000 1.539 0.000
z 0.000 0.000 1.668


<r2> (average value of r2) Å2
<r2> 5.368
(<r2>)1/2 2.317

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-6.037125
Energy at 298.15K 
HF Energy-6.037125
Nuclear repulsion energy1.853270
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/CEP-31G*
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-31G*
B
13.89921

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-6.003327
Energy at 298.15K-6.001976
HF Energy-6.003327
Nuclear repulsion energy1.908118
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/CEP-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 3046 2942 18.40      

Unscaled Zero Point Vibrational Energy (zpe) 1523.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 1470.8 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 B3LYP/CEP-31G*
B
14.73408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

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
C11.1093
H21.1093

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.241      
2 H 0.241      


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 -0.915 0.915
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.407 0.000 0.000
y 0.000 -7.407 0.000
z 0.000 0.000 -5.231
Traceless
 xyz
x -1.088 0.000 0.000
y 0.000 -1.088 0.000
z 0.000 0.000 2.176
Polar
3z2-r24.352
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 0.741 0.000 0.000
y 0.000 0.741 0.000
z 0.000 0.000 1.279


<r2> (average value of r2) Å2
<r2> 5.178
(<r2>)1/2 2.275