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

using model chemistry: B3LYPultrafine_cp_opt/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-56.566984
Energy at 298.15K-56.572207
HF Energy-56.566984
Nuclear repulsion energy11.900822
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/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 A' 3622 3491 7.89      
2 A' 3581 3452 59.81      
3 A' 3483 3357 1.66      
4 A' 3439 3315 91.94      
5 A' 1679 1618 14.56      
6 A' 1667 1607 31.98      
7 A' 1052 1014 108.29      
8 A' 1038 1000 357.72      
9 A' 409 394 46.64      
10 A' 142 137 43.97      
11 A' 88 85 102.80      
12 A" 3625 3494 5.65      
13 A" 3620 3490 1.17      
14 A" 1701 1640 27.27      
15 A" 1677 1616 23.55      
16 A" 255 246 68.79      
17 A" 122 118 52.66      
18 A" 51 49 6.77      

Unscaled Zero Point Vibrational Energy (zpe) 15624.4 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 15061.9 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/6-31+G**
ABC
4.07878 0.17379 0.17150

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.248 0.700 0.000
N2 -0.025 1.683 0.000
N3 -0.025 -1.582 0.000
H4 0.378 2.128 0.820
H5 0.378 2.128 -0.820
H6 -1.020 -1.376 0.000
H7 0.180 -2.144 -0.822
H8 0.180 -2.144 0.822

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02092.29821.65201.65202.43292.96052.9605
N21.02093.26571.01601.01603.21763.91973.9197
N32.29823.26573.82103.82101.01661.01601.0160
H41.65201.01603.82101.64003.86104.58054.2762
H51.65201.01603.82101.64003.86104.27624.5805
H62.43293.21761.01663.86103.86101.64461.6446
H72.96053.91971.01604.58054.27621.64461.6434
H82.96053.91971.01604.27624.58051.64461.6434

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 108.391 H1 N2 H5 108.391
H1 H3 N6 85.132 H1 H3 H7 121.652
H1 H3 H8 121.652 N2 H1 H3 157.668
H4 N2 H5 107.630 N6 H3 H7 108.015
N6 H3 H8 108.015 H7 H3 H8 107.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 N 0.000      
3 N -0.879      
4 H 0.000      
5 H 0.000      
6 H 0.293      
7 H 0.293      
8 H 0.293      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.790 -2.027 0.000 2.176
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.715 3.570 0.000
y 3.570 -11.345 0.000
z 0.000 0.000 -12.707
Traceless
 xyz
x -4.689 3.570 0.000
y 3.570 3.366 0.000
z 0.000 0.000 1.323
Polar
3z2-r22.646
x2-y2-5.370
xy3.570
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.544 0.081 0.000
y 0.081 1.801 0.000
z 0.000 0.000 1.519


<r2> (average value of r2) Å2
<r2> 70.638
(<r2>)1/2 8.405