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All results from a given calculation for H2ONH3 (Water Ammonia Dimer)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-131.475080
Energy at 298.15K-131.479712
Counterpoise corrected energy-131.470097
CP Energy at 298.15K-131.474783
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy39.127141
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 HF/3-21G
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' 3889 3522 26.93      
2 A' 3774 3418 7.49      
3 A' 3634 3291 99.03      
4 A' 3618 3277 303.85      
5 A' 1867 1691 93.17      
6 A' 1862 1686 33.23      
7 A' 1058 958 363.10      
8 A' 532 482 129.81      
9 A' 227 206 38.80      
10 A' 216 196 19.66      
11 A" 3775 3419 9.15      
12 A" 1857 1682 27.33      
13 A" 845 766 289.06      
14 A" 211 192 24.11      
15 A" 28 25 112.18      

Unscaled Zero Point Vibrational Energy (zpe) 13696.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 12403.6 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 HF/3-21G
ABC
4.74499 0.21699 0.21485

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.032 0.556 0.000
O2 -0.040 1.534 0.000
N3 -0.040 -1.378 0.000
H4 0.878 1.836 0.000
H5 0.865 -1.816 0.000
H6 -0.559 -1.603 0.830
H7 -0.559 -1.603 -0.830

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97871.93361.57132.53542.37242.3724
O20.97872.91220.96623.46993.28693.2869
N31.93362.91223.34271.00511.00521.0052
H41.57130.96623.34273.65203.81933.8193
H52.53543.46991.00513.65201.66251.6625
H62.37243.28691.00523.81931.66251.6607
H72.37243.28691.00523.81931.66251.6607

picture of Water Ammonia Dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 107.786 H1 N3 H5 115.599
H1 N3 H6 103.071 H1 N3 H7 103.071
O2 H1 N3 179.352 H5 N3 H6 111.584
H5 N3 H7 111.584 H6 N3 H7 111.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.407      
2 O -0.804      
3 N -0.883      
4 H 0.335      
5 H 0.310      
6 H 0.317      
7 H 0.317      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.529 -4.188 0.000 4.458
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.828 3.630 0.000
y 3.630 -12.429 0.000
z 0.000 0.000 -12.497
Traceless
 xyz
x 1.636 3.630 0.000
y 3.630 -0.767 0.000
z 0.000 0.000 -0.869
Polar
3z2-r2-1.737
x2-y21.602
xy3.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.835 0.162 0.000
y 0.162 1.757 0.000
z 0.000 0.000 1.257


<r2> (average value of r2) Å2
<r2> 55.234
(<r2>)1/2 7.432