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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Σg

State 1 (3Σg)

Jump to S2C1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-147.448918
Energy at 298.15K-147.448645
HF Energy-147.448918
Nuclear repulsion energy46.617287
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 mPW1PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 1292 1229 0.00      
2 Σu 1566 1490 209.05      
3 Πu 429 408 18.54      
3 Πu 429 408 18.54      

Unscaled Zero Point Vibrational Energy (zpe) 1857.3 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 1767.2 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 mPW1PW91/6-31G**
B
0.39680

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.232
N3 0.000 0.000 -1.232

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23161.2316
N21.23162.4633
N31.23162.4633

picture of Cyanoimidogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.616      
2 N -0.308      
3 N -0.308      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.345 0.000 0.000
y 0.000 -15.345 0.000
z 0.000 0.000 -20.200
Traceless
 xyz
x 2.428 0.000 0.000
y 0.000 2.428 0.000
z 0.000 0.000 -4.855
Polar
3z2-r2-9.711
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 1.609 0.000 0.000
y 0.000 1.609 0.000
z 0.000 0.000 5.000


<r2> (average value of r2) Å2
<r2> 31.832
(<r2>)1/2 5.642

State 2 (1Σg)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-147.389270
Energy at 298.15K-147.388993
HF Energy-147.389270
Nuclear repulsion energy46.775146
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 mPW1PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 1327 1262 0.00      
2 Σu 1885 1794 69.80      
3 Πu 540 514 9.08      
3 Πu 331 315 33.83      

Unscaled Zero Point Vibrational Energy (zpe) 2041.7 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 1942.6 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 mPW1PW91/6-31G**
B
0.39950

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.227
N3 0.000 0.000 -1.227

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22751.2275
N21.22752.4550
N31.22752.4550

picture of Cyanoimidogen state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.648      
2 N -0.324      
3 N -0.324      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.691 0.000 0.000
y 0.000 -14.125 0.000
z 0.000 0.000 -20.220
Traceless
 xyz
x 0.481 0.000 0.000
y 0.000 4.331 0.000
z 0.000 0.000 -4.813
Polar
3z2-r2-9.625
x2-y2-2.567
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.391 0.000 0.000
y 0.000 1.661 0.000
z 0.000 0.000 5.146


<r2> (average value of r2) Å2
<r2> 31.719
(<r2>)1/2 5.632