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

using model chemistry: B3LYPultrafine_cp_opt/6-31G*

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/6-31G*
 hartrees
Energy at 0K-113.101392
Energy at 298.15K-113.106744
Nuclear repulsion energy11.876555
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3573 3423 0.36      
2 A 3513 3365 35.56      
3 A 3442 3298 0.25      
4 A 3383 3241 110.76      
5 A 1734 1661 8.43      
6 A 1720 1647 16.55      
7 A 1195 1145 148.08      
8 A 1157 1108 169.63      
9 A 413 395 73.51      
10 A 153 146 38.74      
11 A 115 110 73.74      
12 A 3573 3423 0.03      
13 A 3552 3403 4.19      
14 A 1765 1691 15.01      
15 A 1726 1653 18.12      
16 A 300 288 71.32      
17 A 134 129 53.59      
18 A 29 28 16.38      

Unscaled Zero Point Vibrational Energy (zpe) 15737.6 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 15076.6 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/6-31G*
ABC
3.89633 0.17658 0.17477

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.103 0.674 0.000
N2 -0.035 1.690 0.000
N3 -0.035 -1.550 0.000
H4 0.477 2.041 0.810
H5 0.477 2.041 -0.810
H6 -1.055 -1.552 0.000
H7 0.247 -2.094 -0.814
H8 0.247 -2.094 0.814

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02552.22801.63191.63192.50932.88902.8890
N21.02553.24001.02011.02013.39913.88123.8812
N32.22803.24003.71593.71591.01951.01931.0193
H41.63191.02013.71591.61983.98884.44814.1410
H51.63191.02013.71591.61983.98884.14104.4481
H62.50933.39911.01953.98883.98881.62831.6283
H72.88903.88121.01934.44814.14101.62831.6283
H82.88903.88121.01934.14104.44811.62831.6283

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 105.829 H1 N2 H5 105.829
H1 H3 N6 93.699 H1 H3 H7 121.058
H1 H3 H8 121.058 N2 H1 H3 168.723
H4 N2 H5 105.102 N6 H3 H7 106.000
N6 H3 H8 106.000 H7 H3 H8 106.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 N 0.000      
3 N -0.890      
4 H 0.000      
5 H 0.000      
6 H 0.297      
7 H 0.297      
8 H 0.297      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.057 -2.946 0.000 3.129
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.699 4.150 0.000
y 4.150 -11.062 0.000
z 0.000 0.000 -12.391
Traceless
 xyz
x -2.972 4.150 0.000
y 4.150 2.482 0.000
z 0.000 0.000 0.490
Polar
3z2-r20.980
x2-y2-3.636
xy4.150
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.898 -0.173 0.000
y -0.173 1.368 0.000
z 0.000 0.000 1.417


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000