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

using model chemistry: PBEPBEultrafine_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 PBEPBEultrafine_cp_opt/3-21G
 hartrees
Energy at 0K-132.054846
Energy at 298.15K-132.059650
Nuclear repulsion energy11.694710
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 PBEPBEultrafine_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 3438 3406 0.01      
2 A 3436 3405 0.20      
3 A 3370 3339 34.48      
4 A 3284 3254 2.12      
5 A 2873 2847 529.88      
6 A 1742 1726 31.58      
7 A 1709 1693 18.78      
8 A 1702 1686 31.68      
9 A 979 971 213.04      
10 A 912 904 200.79      
11 A 587 582 114.06      
12 A 284 281 28.43      
13 A 251 248 41.00      
14 A 241 238 33.31      
15 A 14 14 70.39      

Unscaled Zero Point Vibrational Energy (zpe) 12410.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 12297.2 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 PBEPBEultrafine_cp_opt/3-21G
ABC
4.54727 0.22481 0.22228

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.477 0.009 -0.000
O2 -1.512 0.111 -0.000
N3 1.335 -0.018 0.000
H4 -1.828 -0.846 0.001
H5 1.572 0.963 -0.224
H6 1.720 -0.249 0.931
H7 1.769 -0.635 -0.706

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H11.04011.81191.59872.27142.40032.4409
O21.04012.84971.00773.20763.38303.4381
N31.81192.84973.26911.03391.03361.0336
H41.59871.00773.26913.85793.71623.6718
H52.27143.20761.03393.85791.68051.6808
H62.40033.38301.03363.71621.68051.6828
H72.44093.43811.03363.67181.68081.6828

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 102.636 H1 N3 H5 102.443
H1 N3 H6 112.113 H1 N3 H7 115.403
O2 H1 N3 175.235 H5 N3 H6 108.746
H5 N3 H7 108.771 H6 N3 H7 108.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 N -0.779      
4 H 0.000      
5 H 0.259      
6 H 0.259      
7 H 0.260      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -4.765 1.495 0.000 4.994
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.636 3.211 -0.004
y 3.211 -11.352 -0.008
z -0.004 -0.008 -12.687
Traceless
 xyz
x 0.384 3.211 -0.004
y 3.211 0.809 -0.008
z -0.004 -0.008 -1.193
Polar
3z2-r2-2.386
x2-y2-0.284
xy3.211
xz-0.004
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.448 -0.066 0.000
y -0.066 1.284 0.000
z 0.000 0.000 1.287


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