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All results from a given calculation for NH4 (Ammonium radical)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 2A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-56.656658
Energy at 298.15K 
HF Energy-56.656658
Nuclear repulsion energy15.089599
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 B1B95/3-21G
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 2483 2376 0.00 112.95 0.00 0.00
2 E 1307 1251 0.00 177.56 0.75 0.86
2 E 1307 1251 0.00 177.56 0.75 0.86
3 T2 1559 1492 1367.13 1683.04 0.75 0.86
3 T2 1559 1492 1367.13 1683.04 0.75 0.86
3 T2 1559 1492 1367.13 1683.04 0.75 0.86
4 T2 247i 236i 2155.88 2807.78 0.75 0.86
4 T2 247i 236i 2155.88 2807.78 0.75 0.86
4 T2 247i 236i 2155.88 2807.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4517.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 4322.1 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 B1B95/3-21G
ABC
5.08374 5.08374 5.08374

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
H2 0.641 0.641 0.641
H3 -0.641 -0.641 0.641
H4 -0.641 0.641 -0.641
H5 0.641 -0.641 -0.641

Atom - Atom Distances (Å)
  N1 H2 H3 H4 H5
N11.11081.11081.11081.1108
H21.11081.81391.81391.8139
H31.11081.81391.81391.8139
H41.11081.81391.81391.8139
H51.11081.81391.81391.8139

picture of Ammonium radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 109.471 H2 N1 H4 109.471
H2 N1 H5 109.471 H3 N1 H4 109.471
H3 N1 H5 109.471 H4 N1 H5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.573      
2 H 0.143      
3 H 0.143      
4 H 0.143      
5 H 0.143      


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 -9.351 0.000 0.000
y 0.000 -9.351 0.000
z 0.000 0.000 -9.351
Traceless
 xyz
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000
Polar
3z2-r20.000
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 4.748 0.000 0.000
y 0.000 4.748 0.000
z 0.000 0.000 4.748


<r2> (average value of r2) Å2
<r2> 10.776
(<r2>)1/2 3.283