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All results from a given calculation for NH3 (Ammonia)

using model chemistry: B1B95/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/CEP-121G*
 hartrees
Energy at 0K-11.687092
Energy at 298.15K-11.689761
HF Energy-11.687092
Nuclear repulsion energy8.795432
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/CEP-121G*
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 3510 3510 0.26      
2 A1 1117 1117 219.61      
3 E 3654 3654 0.07      
3 E 3654 3654 0.06      
4 E 1734 1734 30.62      
4 E 1734 1734 30.58      

Unscaled Zero Point Vibrational Energy (zpe) 7701.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7701.2 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 B1B95/CEP-121G*
ABC
9.92537 9.92537 6.29983

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-121G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.114
H2 0.000 0.941 -0.267
H3 0.815 -0.470 -0.267
H4 -0.815 -0.470 -0.267

Atom - Atom Distances (Å)
  N1 H2 H3 H4
N11.01491.01491.0149
H21.01491.62951.6295
H31.01491.62951.6295
H41.01491.62951.6295

picture of Ammonia state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 106.790 H2 N1 H4 106.790
H3 N1 H4 106.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.963      
2 H 0.321      
3 H 0.321      
4 H 0.321      


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 -1.877 1.877
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.096 0.000 0.000
y 0.000 -6.096 0.000
z 0.000 0.000 -9.219
Traceless
 xyz
x 1.561 0.000 0.000
y 0.000 1.561 0.000
z 0.000 0.000 -3.123
Polar
3z2-r2-6.245
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 1.474 0.000 0.000
y 0.000 1.473 0.000
z 0.000 0.000 1.212


<r2> (average value of r2) Å2
<r2> 7.391
(<r2>)1/2 2.719