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

using model chemistry: HF_cp_opt/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_cp_opt/3-21G
 hartrees
Energy at 0K-131.470097
Energy at 298.15K-131.474783
Nuclear repulsion energy12.006726
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_cp_opt/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' 3891 3524 24.83      
2 A' 3765 3410 3.06      
3 A' 3627 3285 191.19      
4 A' 3617 3276 165.83      
5 A' 1868 1692 59.84      
6 A' 1861 1686 66.66      
7 A' 1092 989 389.98      
8 A' 532 482 141.08      
9 A' 244 221 60.60      
10 A' 212 192 2.39      
11 A" 3763 3408 4.12      
12 A" 1865 1689 26.11      
13 A" 832 753 309.06      
14 A" 251 227 31.33      
15 A" 18 17 112.16      

Unscaled Zero Point Vibrational Energy (zpe) 13719.8 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 12424.7 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_cp_opt/3-21G
ABC
4.79492 0.21076 0.20880

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.009 0.576 0.000
O2 -0.039 1.555 0.000
N3 -0.039 -1.398 0.000
H4 0.871 1.879 0.000
H5 0.852 -1.863 0.000
H6 -0.563 -1.625 0.828
H7 -0.563 -1.625 -0.828

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97971.97401.57232.58642.41622.4162
O20.97972.95300.96603.53233.32813.3281
N31.97402.95303.40061.00561.00591.0059
H41.57230.96603.40063.74143.87573.8757
H52.58643.53231.00563.74141.65701.6570
H62.41623.32811.00593.87571.65701.6562
H72.41623.32811.00593.87571.65701.6562

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 107.823 H1 N3 H5 116.666
H1 N3 H6 103.536 H1 N3 H7 103.536
O2 H1 N3 177.388 H5 N3 H6 110.926
H5 N3 H7 110.926 H6 N3 H7 110.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 N -0.870      
4 H 0.000      
5 H 0.290      
6 H 0.290      
7 H 0.290      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.527 -4.157 0.000 4.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.902 3.752 0.000
y 3.752 -12.016 0.000
z 0.000 0.000 -12.532
Traceless
 xyz
x 1.372 3.752 0.000
y 3.752 -0.299 0.000
z 0.000 0.000 -1.073
Polar
3z2-r2-2.147
x2-y21.114
xy3.752
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.167 -0.127 0.000
y -0.127 0.394 0.000
z 0.000 0.000 1.186


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