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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-132.906219
Energy at 298.15K-132.910545
Nuclear repulsion energy38.816375
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 B1B95/3-21G
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' 3855 3688 35.61      
2 A' 3625 3468 5.15      
3 A' 3570 3416 462.86      
4 A' 3488 3337 4.73      
5 A' 1763 1687 53.68      
6 A' 1714 1639 43.48      
7 A' 1161 1111 146.96      
8 A' 463 443 111.32      
9 A' 212 203 13.48      
10 A' 171 163 49.15      
11 A" 3627 3470 4.03      
12 A" 1721 1646 22.44      
13 A" 703 672 190.01      
14 A" 150 144 38.01      
15 A" 15 14 75.17      

Unscaled Zero Point Vibrational Energy (zpe) 13117.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 12549.8 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 B1B95/3-21G
ABC
4.89850 0.21182 0.20981

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.015 0.581 0.000
O2 0.037 1.559 0.000
N3 0.037 -1.376 0.000
H4 -0.886 1.836 0.000
H5 1.035 -1.571 0.000
H6 -0.347 -1.844 0.815
H7 -0.347 -1.844 -0.815

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97891.95731.52752.39422.57962.5796
O20.97892.93410.96393.28433.51973.5197
N31.95732.93413.34191.01601.01581.0158
H41.52750.96393.34193.91093.80763.8076
H52.39423.28431.01603.91091.62761.6276
H62.57963.51971.01583.80761.62761.6303
H72.57963.51971.01583.80761.62761.6303

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 103.663 H1 N3 H5 102.618
H1 N3 H6 116.778 H1 N3 H7 116.778
O2 H1 N3 175.367 H5 N3 H6 106.460
H5 N3 H7 106.460 H6 N3 H7 106.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.442      
2 O -0.860      
3 N -0.941      
4 H 0.371      
5 H 0.333      
6 H 0.327      
7 H 0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.261 -3.966 0.000 4.161
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.299 -3.430 0.000
y -3.430 -11.940 0.000
z 0.000 0.000 -13.177
Traceless
 xyz
x 1.260 -3.430 0.000
y -3.430 0.298 0.000
z 0.000 0.000 -1.558
Polar
3z2-r2-3.115
x2-y20.641
xy-3.430
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.197 -0.121 0.000
y -0.121 2.591 0.000
z 0.000 0.000 1.756


<r2> (average value of r2) Å2
<r2> 56.682
(<r2>)1/2 7.529