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All results from a given calculation for NH3 (Ammonia)

using model chemistry: B3LYP/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 B3LYP/CEP-121G
 hartrees
Energy at 0K-11.695565
Energy at 298.15K-11.698064
HF Energy-11.695565
Nuclear repulsion energy8.781841
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 B3LYP/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 3500 3411 0.12 119.67 0.15 0.25
2 A1 577 563 471.26 3.83 0.00 0.00
3 E 3709 3615 0.97 39.16 0.75 0.86
3 E 3709 3615 0.97 39.16 0.75 0.86
4 E 1685 1642 48.29 4.82 0.75 0.86
4 E 1685 1642 48.28 4.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7432.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 7243.0 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 B3LYP/CEP-121G
ABC
10.54681 10.54681 5.75874

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.070
H2 0.000 0.984 -0.163
H3 0.852 -0.492 -0.163
H4 -0.852 -0.492 -0.163

Atom - Atom Distances (Å)
  N1 H2 H3 H4
N11.01111.01111.0111
H21.01111.70431.7043
H31.01111.70431.7043
H41.01111.70431.7043

picture of Ammonia state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 114.867 H2 N1 H4 114.867
H3 N1 H4 114.867
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.847      
2 H 0.282      
3 H 0.282      
4 H 0.282      


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 -1.425 1.425
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.825 0.000 0.000
y 0.000 -5.825 0.000
z 0.000 0.000 -9.653
Traceless
 xyz
x 1.914 0.000 0.000
y 0.000 1.914 0.000
z 0.000 0.000 -3.828
Polar
3z2-r2-7.656
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 1.423 0.000 0.000
y 0.000 1.423 0.000
z 0.000 0.000 1.054


<r2> (average value of r2) Å2
<r2> 7.444
(<r2>)1/2 2.728