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

using model chemistry: PBEPBEultrafine_cp/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
Energy calculated at PBEPBEultrafine_cp/aug-cc-pVTZ
 hartrees
Energy at 0K-56.511348
Energy at 298.15K 
HF Energy-56.511348
Nuclear repulsion energy11.844692
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/aug-cc-pVTZ
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 3487 3448 0.00      
2 Ag 3369 3331 0.00      
3 Ag 1624 1605 0.00      
4 Ag 1048 1037 0.00      
5 Ag 419 414 0.00      
6 Ag 128 127 0.00      
7 Au 3507 3468 5.62      
8 Au 1631 1613 19.27      
9 Au 213 210 70.60      
10 Au 93 92 19.94      
11 Bg 3507 3468 0.00      
12 Bg 1621 1603 0.00      
13 Bg 116 115 0.00      
14 Bu 3487 3447 38.02      
15 Bu 3371 3333 46.63      
16 Bu 1604 1586 16.41      
17 Bu 1024 1013 269.13      
18 Bu 88i 87i 208.53      

Unscaled Zero Point Vibrational Energy (zpe) 15079.0 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 14910.1 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/aug-cc-pVTZ
ABC
4.52338 0.18297 0.17973

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.694 0.835 0.000
N2 0.000 1.588 0.000
N3 0.000 -1.588 0.000
H4 0.195 2.169 0.818
H5 0.195 2.169 -0.818
H6 -0.694 -0.835 0.000
H7 -0.195 -2.169 -0.818
H8 -0.195 -2.169 0.818

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02402.52061.64211.64212.17163.23793.2379
N21.02403.17621.02171.02172.52063.85003.8500
N32.52063.17623.85003.85001.02401.02171.0217
H41.64211.02173.85001.63503.23794.65244.3556
H51.64211.02173.85001.63503.23794.35564.6524
H62.17162.52061.02403.23793.23791.64211.6421
H73.23793.85001.02174.65244.35561.64211.6350
H83.23793.85001.02174.35564.65241.64211.6350

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/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.166      
2 N -0.390      
3 N -0.390      
4 H 0.112      
5 H 0.112      
6 H 0.166      
7 H 0.112      
8 H 0.112      


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> 67.913
(<r2>)1/2 8.241