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All results from a given calculation for CNH2 (Aminomethylidyne radical)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B2
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-93.888448
Energy at 298.15K-93.889751
HF Energy-93.888448
Nuclear repulsion energy27.724262
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3336 3192 5.30      
2 A1 1656 1584 26.49      
3 A1 1453 1390 13.27      
4 B1 730 699 202.63      
5 B2 3374 3228 0.02      
6 B2 1031 986 1.47      

Unscaled Zero Point Vibrational Energy (zpe) 5790.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5539.7 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 B3PW91/6-31G*
ABC
11.41555 1.25282 1.12892

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.855
N2 0.000 0.000 0.444
H3 0.000 0.856 1.011
H4 0.000 -0.856 1.011

Atom - Atom Distances (Å)
  C1 N2 H3 H4
C11.29952.05282.0528
N21.29951.02631.0263
H32.05281.02631.7119
H42.05281.02631.7119

picture of Aminomethylidyne radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H3 123.491 C1 N2 H4 123.491
H3 N2 H4 113.019
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.062      
2 N -0.642      
3 H 0.352      
4 H 0.352      


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 3.640 3.640
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.657 0.000 0.000
y 0.000 -10.714 0.000
z 0.000 0.000 -13.321
Traceless
 xyz
x -0.639 0.000 0.000
y 0.000 2.274 0.000
z 0.000 0.000 -1.635
Polar
3z2-r2-3.270
x2-y2-1.942
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.436 0.000 0.000
y 0.000 2.280 0.000
z 0.000 0.000 3.427


<r2> (average value of r2) Å2
<r2> 16.917
(<r2>)1/2 4.113