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All results from a given calculation for NH3 (Ammonia)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-56.229129
Energy at 298.15K-56.231719
HF Energy-56.229129
Nuclear repulsion energy11.822907
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/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 3390 3271 1.07 109.97 0.11 0.20
2 A1 765 738 258.62 15.25 0.06 0.11
3 E 3542 3418 1.20 44.86 0.75 0.86
3 E 3542 3418 1.20 44.86 0.75 0.86
4 E 1746 1684 13.96 13.03 0.75 0.86
4 E 1746 1684 13.96 13.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7365.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 7106.7 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/3-21G
ABC
10.03420 10.03420 5.93721

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.097
H2 0.000 0.969 -0.227
H3 0.839 -0.485 -0.227
H4 -0.839 -0.485 -0.227

Atom - Atom Distances (Å)
  N1 H2 H3 H4
N11.02171.02171.0217
H21.02171.67851.6785
H31.02171.67851.6785
H41.02171.67851.6785

picture of Ammonia state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 H3 110.459 H2 N1 H4 110.459
H3 N1 H4 110.459
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.771      
2 H 0.257      
3 H 0.257      
4 H 0.257      


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 -1.852 1.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -5.844 0.000 0.000
y 0.000 -5.844 0.000
z 0.000 0.000 -8.605
Traceless
 xyz
x 1.381 0.000 0.000
y 0.000 1.381 0.000
z 0.000 0.000 -2.762
Polar
3z2-r2-5.524
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 1.255 0.000 0.000
y 0.000 1.255 0.000
z 0.000 0.000 0.418


<r2> (average value of r2) Å2
<r2> 7.262
(<r2>)1/2 2.695