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

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-113.122790
Energy at 298.15K-113.128284
HF Energy-113.122790
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy40.540278
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/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 3580 3440 0.00      
2 Ag 3452 3317 0.00      
3 Ag 1700 1634 0.00      
4 Ag 1124 1080 0.00      
5 Ag 483 464 0.00      
6 Ag 157 151 0.00      
7 Au 3593 3452 0.16      
8 Au 1717 1649 25.69      
9 Au 258 248 110.85      
10 Au 108 104 30.20      
11 Bg 3593 3452 0.00      
12 Bg 1705 1638 0.00      
13 Bg 146 140 0.00      
14 Bu 3580 3440 22.47      
15 Bu 3455 3319 31.09      
16 Bu 1672 1607 13.09      
17 Bu 1101 1058 330.43      
18 Bu 97 94 311.98      

Unscaled Zero Point Vibrational Energy (zpe) 15760.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 15142.9 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 B3LYP/6-31G**
ABC
4.61731 0.19197 0.18838

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.665 0.779 0.000
N2 0.000 1.551 0.000
N3 0.000 -1.551 0.000
H4 0.220 2.122 0.813
H5 0.220 2.122 -0.813
H6 -0.665 -0.779 0.000
H7 -0.220 -2.122 -0.813
H8 -0.220 -2.122 0.813

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.01922.42241.63211.63212.04803.13973.1397
N21.01923.10151.01761.01762.42243.76813.7681
N32.42243.10153.76813.76811.01921.01761.0176
H41.63211.01763.76811.62573.13974.56604.2668
H51.63211.01763.76811.62573.13974.26684.5660
H62.04802.42241.01923.13973.13971.63211.6321
H73.13973.76811.01764.56604.26681.63211.6257
H83.13973.76811.01764.26684.56601.63211.6257

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 106.508 H1 N2 H5 106.508
H1 H3 N6 56.682 H1 H3 H7 126.814
H1 H3 H8 126.814 N2 H1 H3 123.318
H4 N2 H5 106.026 N6 H3 H7 106.508
N6 H3 H8 106.508 H7 H3 H8 106.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.266      
2 N -0.741      
3 N -0.741      
4 H 0.238      
5 H 0.238      
6 H 0.266      
7 H 0.238      
8 H 0.238      


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
Primitive
 xyz
x -16.215 4.197 0.000
y 4.197 -9.274 0.000
z 0.000 0.000 -12.332
Traceless
 xyz
x -5.412 4.197 0.000
y 4.197 4.999 0.000
z 0.000 0.000 0.412
Polar
3z2-r20.824
x2-y2-6.941
xy4.197
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.878 -0.017 0.000
y -0.017 3.577 0.000
z 0.000 0.000 2.840


<r2> (average value of r2) Å2
<r2> 64.488
(<r2>)1/2 8.030