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

using model chemistry: MP2/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-132.800221
Energy at 298.15K-132.804572
HF Energy-132.287164
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy38.927789
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 MP2/aug-cc-pVTZ
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' 3908 3724 85.78      
2 A' 3642 3471 17.29      
3 A' 3588 3419 569.69      
4 A' 3499 3334 2.03      
5 A' 1679 1600 1.72      
6 A' 1654 1576 55.54      
7 A' 1094 1042 146.77      
8 A' 461 439 82.26      
9 A' 201 192 26.34      
10 A' 169 161 30.09      
11 A" 3646 3475 15.88      
12 A" 1669 1591 16.66      
13 A" 716 682 86.39      
14 A" 179 170 42.96      
15 A" 13 12 66.37      

Unscaled Zero Point Vibrational Energy (zpe) 13058.5 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 12443.4 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 MP2/aug-cc-pVTZ
ABC
4.98514 0.21291 0.21102

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.077 0.579 0.000
O2 0.038 1.547 0.000
N3 0.038 -1.375 0.000
H4 -0.855 1.899 0.000
H5 1.037 -1.542 0.000
H6 -0.338 -1.845 0.814
H7 -0.338 -1.845 -0.814

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97501.95751.53282.39572.57052.5705
O20.97502.92240.96033.24693.50893.5089
N31.95752.92243.39401.01291.01241.0124
H41.53280.96033.39403.92733.86653.8665
H52.39573.24691.01293.92731.62651.6265
H62.57053.50891.01243.86651.62651.6281
H72.57053.50891.01243.86651.62651.6281

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 104.745 H1 N3 H5 102.842
H1 N3 H6 116.206 H1 N3 H7 116.206
O2 H1 N3 169.890 H5 N3 H6 106.855
H5 N3 H7 106.855 H6 N3 H7 107.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.286      
2 O -0.510      
3 N -0.417      
4 H 0.185      
5 H 0.141      
6 H 0.158      
7 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.273 -3.370 0.000 3.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.765 -3.391 0.000
y -3.391 -12.589 0.000
z 0.000 0.000 -13.710
Traceless
 xyz
x 1.384 -3.391 0.000
y -3.391 0.149 0.000
z 0.000 0.000 -1.533
Polar
3z2-r2-3.066
x2-y20.823
xy-3.391
xz0.000
yz0.000


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


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