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All results from a given calculation for NH3 (Ammonia)

using model chemistry: PBE1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31+G**
 hartrees
Energy at 0K-56.495120
Energy at 298.15K-56.497771
HF Energy-56.495120
Nuclear repulsion energy11.936149
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 PBE1PBE/6-31+G**
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 3531 3373 1.54 119.80 0.03 0.06
2 A1 1002 958 247.98 4.09 0.74 0.85
3 E 3684 3520 6.38 47.67 0.75 0.86
3 E 3684 3520 6.38 47.67 0.75 0.86
4 E 1678 1603 30.70 5.11 0.75 0.86
4 E 1678 1603 30.70 5.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7629.0 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 7288.0 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 PBE1PBE/6-31+G**
ABC
10.04220 10.04220 6.21955

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.108
H2 0.000 0.947 -0.252
H3 0.820 -0.473 -0.252
H4 -0.820 -0.473 -0.252

Atom - Atom Distances (Å)
  N1 H2 H3 H4
N11.01321.01321.0132
H21.01321.63991.6399
H31.01321.63991.6399
H41.01321.63991.6399

picture of Ammonia state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 108.054 H2 N1 H4 108.054
H3 N1 H4 108.054
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.911      
2 H 0.304      
3 H 0.304      
4 H 0.304      


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 -1.785 1.785
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.222 0.000 0.000
y 0.000 -6.222 0.000
z 0.000 0.000 -9.733
Traceless
 xyz
x 1.755 0.000 0.000
y 0.000 1.755 0.000
z 0.000 0.000 -3.511
Polar
3z2-r2-7.021
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 1.488 0.000 0.000
y 0.000 1.488 0.000
z 0.000 0.000 1.751


<r2> (average value of r2) Å2
<r2> 7.580
(<r2>)1/2 2.753