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All results from a given calculation for NH3 (Ammonia)

using model chemistry: TPSSh/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-56.229334
Energy at 298.15K-56.231954
HF Energy-56.229334
Nuclear repulsion energy11.771782
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 TPSSh/3-21G
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 3352 3248 2.43 116.66 0.10 0.18
2 A1 858 831 207.69 18.94 0.07 0.14
3 E 3503 3394 3.30 48.80 0.75 0.86
3 E 3503 3394 3.30 48.81 0.75 0.86
4 E 1760 1705 11.20 14.49 0.75 0.86
4 E 1760 1705 11.19 14.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7367.2 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 7137.4 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 TPSSh/3-21G
ABC
9.84196 9.84196 5.98024

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.105
H2 0.000 0.966 -0.245
H3 0.836 -0.483 -0.245
H4 -0.836 -0.483 -0.245

Atom - Atom Distances (Å)
  N1 H2 H3 H4
N11.02681.02681.0268
H21.02681.67241.6724
H31.02681.67241.6724
H41.02681.67241.6724

picture of Ammonia state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 109.052 H2 N1 H4 109.052
H3 N1 H4 109.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.784      
2 H 0.261      
3 H 0.261      
4 H 0.261      


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 -1.952 1.952
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.283 0.000 0.000
y 0.000 1.283 0.000
z 0.000 0.000 0.463


<r2> (average value of r2) Å2
<r2> 7.300
(<r2>)1/2 2.702