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

using model chemistry: BLYP/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 BLYP/3-21G*
 hartrees
Energy at 0K-56.677637
Energy at 298.15K 
HF Energy-56.677637
Nuclear repulsion energy14.819389
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 BLYP/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 2339 2324 0.00 62.03 0.00 0.00
2 E 1261 1253 0.00 135.93 0.75 0.86
2 E 1261 1253 0.00 135.93 0.75 0.86
3 T2 1616 1606 989.99 646.92 0.75 0.86
3 T2 1616 1606 989.99 646.92 0.75 0.86
3 T2 1616 1606 989.99 646.92 0.75 0.86
4 T2 178 177 1248.09 990.82 0.75 0.86
4 T2 178 177 1248.09 990.82 0.75 0.86
4 T2 178 177 1248.09 990.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5122.5 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 5089.2 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 BLYP/3-21G*
ABC
4.90330 4.90330 4.90330

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.000
H2 0.653 0.653 0.653
H3 -0.653 -0.653 0.653
H4 -0.653 0.653 -0.653
H5 0.653 -0.653 -0.653

Atom - Atom Distances (Å)
  N1 H2 H3 H4 H5
N11.13101.13101.13101.1310
H21.13101.84701.84701.8470
H31.13101.84701.84701.8470
H41.13101.84701.84701.8470
H51.13101.84701.84701.8470

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 BLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.485      
2 H 0.121      
3 H 0.121      
4 H 0.121      
5 H 0.121      


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 -9.375 0.000 0.000
y 0.000 -9.375 0.000
z 0.000 0.000 -9.375
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 4.137 0.000 0.000
y 0.000 4.137 0.000
z 0.000 0.000 4.137


<r2> (average value of r2) Å2
<r2> 10.972
(<r2>)1/2 3.312