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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-6.028505
Energy at 298.15K 
HF Energy-6.028505
Nuclear repulsion energy1.828813
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 2724 2638 323.46 240605.30 0.35 0.51

Unscaled Zero Point Vibrational Energy (zpe) 1362.0 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 1318.9 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 B3LYP/CEP-31G
B
13.53478

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 0.165
H2 0.000 0.000 -0.992

Atom - Atom Distances (Å)
  C1 H2
C11.1574
H21.1574

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 -0.085      
2 H 0.085      


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 -1.762 1.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.627 0.000 0.000
y 0.000 -5.543 0.000
z 0.000 0.000 -7.713
Traceless
 xyz
x -0.999 0.000 0.000
y 0.000 2.127 0.000
z 0.000 0.000 -1.128
Polar
3z2-r2-2.257
x2-y2-2.084
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.198 0.000 0.000
y 0.000 2.309 0.000
z 0.000 0.000 1.746


<r2> (average value of r2) Å2
<r2> 5.441
(<r2>)1/2 2.333

State 2 (2Π3/2)

Jump to S1C1 S3C1
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-6.028505
Energy at 298.15K 
HF Energy-6.028505
Nuclear repulsion energy1.828813
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
13.53478

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-6.000100
Energy at 298.15K-5.998749
HF Energy-6.000100
Nuclear repulsion energy1.901706
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 3027 2931 9.55      

Unscaled Zero Point Vibrational Energy (zpe) 1513.5 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 1465.7 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 B3LYP/CEP-31G
B
14.63522

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 0.159
H2 0.000 0.000 -0.954

Atom - Atom Distances (Å)
  C1 H2
C11.1131
H21.1131

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 -0.210      
2 H 0.210      


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 -0.937 0.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -7.420 0.000 0.000
y 0.000 -7.420 0.000
z 0.000 0.000 -5.257
Traceless
 xyz
x -1.081 0.000 0.000
y 0.000 -1.081 0.000
z 0.000 0.000 2.162
Polar
3z2-r24.324
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 0.658 0.000 0.000
y 0.000 0.658 0.000
z 0.000 0.000 1.230


<r2> (average value of r2) Å2
<r2> 5.195
(<r2>)1/2 2.279