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

using model chemistry: PBEPBEultrafine_cp/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
Energy calculated at PBEPBEultrafine_cp/6-31G*
 hartrees
Energy at 0K-56.470451
Energy at 298.15K 
HF Energy-56.470451
Nuclear repulsion energy11.778249
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3466 3409 0.00      
2 Ag 3332 3277 0.00      
3 Ag 1694 1666 0.00      
4 Ag 1158 1139 0.00      
5 Ag 518 509 0.00      
6 Ag 168 165 0.00      
7 Au 3492 3434 0.73      
8 Au 1710 1681 26.82      
9 Au 278 273 115.99      
10 Au 115 113 34.12      
11 Bg 3491 3433 0.00      
12 Bg 1697 1669 0.00      
13 Bg 150 148 0.00      
14 Bu 3466 3409 21.38      
15 Bu 3336 3281 50.25      
16 Bu 1660 1633 11.93      
17 Bu 1128 1109 305.42      
18 Bu 111 110 345.38      

Unscaled Zero Point Vibrational Energy (zpe) 15483.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 15228.4 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 PBEPBEultrafine/6-31G*
ABC
4.53007 0.19890 0.19509

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.673 0.741 0.000
N2 0.000 1.521 0.000
N3 0.000 -1.521 0.000
H4 0.239 2.096 0.817
H5 0.239 2.096 -0.817
H6 -0.673 -0.741 0.000
H7 -0.239 -2.096 -0.817
H8 -0.239 -2.096 0.817

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.03002.36011.64061.64062.00223.09033.0903
N21.03003.04201.02721.02722.36013.71603.7160
N32.36013.04203.71603.71601.03001.02721.0272
H41.64061.02723.71601.63353.09034.52484.2197
H51.64061.02723.71601.63353.09034.21974.5248
H62.00222.36011.03003.09033.09031.64061.6406
H73.09033.71601.02724.52484.21971.64061.6335
H83.09033.71601.02724.21974.52481.64061.6335

picture of Ammonia Dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.325      
2 N -0.916      
3 N -0.916      
4 H 0.295      
5 H 0.295      
6 H 0.325      
7 H 0.295      
8 H 0.295      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 62.794
(<r2>)1/2 7.924