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All results from a given calculation for CH (Methylidyne)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-38.462381
Energy at 298.15K 
HF Energy-38.462381
Nuclear repulsion energy2.771417
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 BLYP/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 2678 2658 192.13 127.53 0.71 0.83

Unscaled Zero Point Vibrational Energy (zpe) 1339.1 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 1328.8 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 BLYP/6-31G**
B
13.81446

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.164
H2 0.000 0.000 -0.982

Atom - Atom Distances (Å)
  C1 H2
C11.1456
H21.1456

picture of Methylidyne state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.079      
2 H 0.079      


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 -1.288 1.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.276 0.000 0.000
y 0.000 -5.426 0.000
z 0.000 0.000 -7.467
Traceless
 xyz
x -0.830 0.000 0.000
y 0.000 1.945 0.000
z 0.000 0.000 -1.116
Polar
3z2-r2-2.232
x2-y2-1.850
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.025 0.000 0.000
y 0.000 1.190 0.000
z 0.000 0.000 1.959


<r2> (average value of r2) Å2
<r2> 5.324
(<r2>)1/2 2.307

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-38.462381
Energy at 298.15K 
HF Energy-38.462381
Nuclear repulsion energy2.771417
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 BLYP/6-31G**
Rotational Constants (cm-1) from geometry optimized at BLYP/6-31G**
B
13.81446

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-38.426730
Energy at 298.15K-38.425379
HF Energy-38.426730
Nuclear repulsion energy2.874841
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 BLYP/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 2985 2962 36.25      

Unscaled Zero Point Vibrational Energy (zpe) 1492.3 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 1480.8 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 BLYP/6-31G**
B
14.86475

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

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 -0.947

Atom - Atom Distances (Å)
  C1 H2
C11.1044
H21.1044

picture of Methylidyne state 3 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** 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 -0.738 0.738
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.044 0.000 0.000
y 0.000 -7.044 0.000
z 0.000 0.000 -5.207
Traceless
 xyz
x -0.919 0.000 0.000
y 0.000 -0.919 0.000
z 0.000 0.000 1.837
Polar
3z2-r23.675
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 0.694 0.000 0.000
y 0.000 0.694 0.000
z 0.000 0.000 1.449


<r2> (average value of r2) Å2
<r2> 5.063
(<r2>)1/2 2.250