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All results from a given calculation for CH (Methylidyne)

using model chemistry: B1B95/6-31G**

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 B1B95/6-31G**
 hartrees
Energy at 0K-38.451525
Energy at 298.15K 
HF Energy-38.451525
Nuclear repulsion energy2.805725
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 B1B95/6-31G**
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 2819 2692 187.27 112.40 0.50 0.67

Unscaled Zero Point Vibrational Energy (zpe) 1409.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1345.7 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 B1B95/6-31G**
B
14.15860

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

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 -0.970

Atom - Atom Distances (Å)
  C1 H2
C11.1316
H21.1316

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 H 0.126      


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 -1.387 1.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.410 0.000 0.000
y 0.000 -7.280 0.000
z 0.000 0.000 -7.442
Traceless
 xyz
x 1.951 0.000 0.000
y 0.000 -0.853 0.000
z 0.000 0.000 -1.098
Polar
3z2-r2-2.195
x2-y21.870
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.116 0.000 0.000
y 0.000 1.014 0.000
z 0.000 0.000 1.903


<r2> (average value of r2) Å2
<r2> 5.289
(<r2>)1/2 2.300

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-38.451525
Energy at 298.15K 
HF Energy-38.451525
Nuclear repulsion energy2.805725
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 B1B95/6-31G**
Rotational Constants (cm-1) from geometry optimized at B1B95/6-31G**
B
14.15860

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C∞v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 3 (4Σ-)

Jump to S1C1 S2C1
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-38.429711
Energy at 298.15K-38.428360
HF Energy-38.429711
Nuclear repulsion energy2.908410
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 B1B95/6-31G**
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 3136 2994 43.40      

Unscaled Zero Point Vibrational Energy (zpe) 1567.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1497.1 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 B1B95/6-31G**
B
15.21393

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

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 -0.936

Atom - Atom Distances (Å)
  C1 H2
C11.0917
H21.0917

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 H 0.190      


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 -0.731 0.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.023 0.000 0.000
y 0.000 -7.023 0.000
z 0.000 0.000 -5.190
Traceless
 xyz
x -0.916 0.000 0.000
y 0.000 -0.916 0.000
z 0.000 0.000 1.833
Polar
3z2-r23.665
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 0.683 0.000 0.000
y 0.000 0.683 0.000
z 0.000 0.000 1.383


<r2> (average value of r2) Å2
<r2> 5.026
(<r2>)1/2 2.242