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

using model chemistry: MP2/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-311+G(3df,2pd)
 hartrees
Energy at 0K-132.789894
Energy at 298.15K-132.794289
HF Energy-132.284311
Counterpoise corrected energy-132.788853
CP Energy at 298.15K-132.793133
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy38.900878
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 MP2/6-311+G(3df,2pd)
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' 3954 3757 83.83      
2 A' 3660 3477 20.05      
3 A' 3649 3466 566.48      
4 A' 3517 3341 0.96      
5 A' 1682 1598 11.23      
6 A' 1656 1573 50.04      
7 A' 1088 1034 153.03      
8 A' 460 437 88.39      
9 A' 201 191 34.44      
10 A' 174 165 20.83      
11 A" 3665 3482 17.18      
12 A" 1665 1582 18.34      
13 A" 724 687 98.97      
14 A" 185 176 44.34      
15 A" 29 28 72.14      

Unscaled Zero Point Vibrational Energy (zpe) 13154.4 cm-1
Scaled (by 0.95) Zero Point Vibrational Energy (zpe) 12496.7 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 MP2/6-311+G(3df,2pd)
ABC
4.97457 0.21162 0.20973

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.062 0.587 0.000
O2 0.038 1.553 0.000
N3 0.038 -1.380 0.000
H4 -0.858 1.891 0.000
H5 1.035 -1.557 0.000
H6 -0.344 -1.844 0.814
H7 -0.344 -1.844 -0.814

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97171.96901.52752.40812.57902.5790
O20.97172.93290.95753.26593.51443.5144
N31.96902.93293.39101.01271.01201.0120
H41.52750.95753.39103.93313.85713.8571
H52.40813.26591.01273.93311.62701.6270
H62.57903.51441.01203.85711.62701.6278
H72.57903.51441.01203.85711.62701.6278

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 104.711 H1 N3 H5 102.990
H1 N3 H6 116.049 H1 N3 H7 116.049
O2 H1 N3 171.142 H5 N3 H6 106.943
H5 N3 H7 106.943 H6 N3 H7 107.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.356      
2 O -0.454      
3 N -0.237      
4 H 0.128      
5 H 0.076      
6 H 0.065      
7 H 0.065      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.305 -3.400 0.000 3.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.717 -3.432 0.000
y -3.432 -12.677 0.000
z 0.000 0.000 -13.710
Traceless
 xyz
x 1.476 -3.432 0.000
y -3.432 0.036 0.000
z 0.000 0.000 -1.513
Polar
3z2-r2-3.025
x2-y20.960
xy-3.432
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