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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-113.033862
Energy at 298.15K-113.039350
HF Energy-113.033862
Nuclear repulsion energy40.520984
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 B1B95/6-31G*
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 3614 3431 0.00      
2 Ag 3477 3301 0.00      
3 Ag 1737 1649 0.00      
4 Ag 1171 1112 0.00      
5 Ag 482 457 0.00      
6 Ag 138 131 0.00      
7 Au 3628 3444 0.09      
8 Au 1752 1664 34.15      
9 Au 259 246 123.41      
10 Au 95 90 34.02      
11 Bg 3627 3443 0.00      
12 Bg 1740 1652 0.00      
13 Bg 126 120 0.00      
14 Bu 3616 3432 24.56      
15 Bu 3482 3305 21.30      
16 Bu 1711 1624 19.05      
17 Bu 1148 1090 370.31      
18 Bu 143 135 319.01      

Unscaled Zero Point Vibrational Energy (zpe) 15972.2 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 15162.4 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 B1B95/6-31G*
ABC
4.61971 0.19060 0.18710

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.672 0.793 0.000
N2 0.000 1.556 0.000
N3 0.000 -1.556 0.000
H4 0.214 2.128 0.811
H5 0.214 2.128 -0.811
H6 -0.672 -0.793 0.000
H7 -0.214 -2.128 -0.811
H8 -0.214 -2.128 0.811

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.01692.44391.62751.62752.08013.15903.1590
N21.01693.11241.01521.01522.44393.77863.7786
N32.44393.11243.77863.77861.01691.01521.0152
H41.62751.01523.77861.62173.15904.57494.2778
H51.62751.01523.77861.62173.15904.27784.5749
H62.08012.44391.01693.15903.15901.62751.6275
H73.15903.77861.01524.57494.27781.62751.6217
H83.15903.77861.01524.27784.57491.62751.6217

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 106.434 H1 N2 H5 106.434
H1 H3 N6 57.369 H1 H3 H7 126.852
H1 H3 H8 126.852 N2 H1 H3 122.631
H4 N2 H5 106.021 N6 H3 H7 106.434
N6 H3 H8 106.434 H7 H3 H8 106.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.338      
2 N -0.952      
3 N -0.952      
4 H 0.307      
5 H 0.307      
6 H 0.338      
7 H 0.307      
8 H 0.307      


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 -16.193 4.396 0.000
y 4.396 -8.939 0.000
z 0.000 0.000 -12.218
Traceless
 xyz
x -5.615 4.396 0.000
y 4.396 5.266 0.000
z 0.000 0.000 0.349
Polar
3z2-r20.697
x2-y2-7.254
xy4.396
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.780 -0.057 0.000
y -0.057 3.359 0.000
z 0.000 0.000 2.723


<r2> (average value of r2) Å2
<r2> 64.774
(<r2>)1/2 8.048