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All results from a given calculation for NH3NH3 (Ammonia Dimer)

using model chemistry: B3LYPultrafine_cp_opt/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
Energy calculated at B3LYPultrafine_cp_opt/3-21G
 hartrees
Energy at 0K-112.465514
Energy at 298.15K-112.471126
Nuclear repulsion energy11.754925
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 B3LYPultrafine_cp_opt/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 A 3525 3402 0.13      
2 A 3439 3319 18.65      
3 A 3378 3260 0.91      
4 A 3238 3125 235.50      
5 A 1757 1696 5.49      
6 A 1745 1684 16.36      
7 A 965 931 247.86      
8 A 905 874 268.14      
9 A 466 450 77.35      
10 A 180 173 65.48      
11 A 159 153 32.33      
12 A 3526 3403 0.32      
13 A 3500 3377 12.64      
14 A 1803 1739 19.23      
15 A 1750 1689 16.02      
16 A 380 367 61.82      
17 A 176 170 48.16      
18 A 29 28 25.19      

Unscaled Zero Point Vibrational Energy (zpe) 15460.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 14919.0 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 B3LYPultrafine_cp_opt/3-21G
ABC
3.74817 0.18992 0.18754

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.057 -1.555 0.000
N2 -0.035 -1.501 0.000
N3 -0.035 1.622 0.000
H4 0.337 -1.956 0.837
H5 0.337 -1.956 -0.837
H6 0.042 0.590 0.000
H7 0.415 2.013 -0.833
H8 0.415 2.013 0.833

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02363.33721.67521.67522.40963.94843.9484
N21.02363.12291.02331.02332.09203.63893.6389
N33.33723.12293.69383.69381.03511.02431.0243
H41.67521.02333.69381.67492.69654.30693.9698
H51.67521.02333.69381.67492.69653.96984.3069
H62.40962.09201.03512.69652.69651.69071.6907
H73.94843.63891.02434.30693.96981.69071.6658
H83.94843.63891.02433.96984.30691.69071.6658

picture of Ammonia Dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 H4 109.850 H1 N2 H5 109.850
H1 H3 N6 22.076 H1 H3 H7 119.852
H1 H3 H8 119.852 N2 H1 H3 69.141
H4 N2 H5 109.845 N6 H3 H7 110.358
N6 H3 H8 110.358 H7 H3 H8 108.808
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 N 0.000      
3 N -0.773      
4 H 0.000      
5 H 0.000      
6 H 0.258      
7 H 0.258      
8 H 0.258      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.201 -3.337 0.000 3.547
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.160 3.751 0.000
y 3.751 -10.492 0.000
z 0.000 0.000 -11.882
Traceless
 xyz
x -2.973 3.751 0.000
y 3.751 2.529 0.000
z 0.000 0.000 0.444
Polar
3z2-r20.888
x2-y2-3.668
xy3.751
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.510 -0.284 0.000
y -0.284 1.162 0.000
z 0.000 0.000 1.250


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000