return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYPultrafine_cp/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYPultrafine_cp/6-31G*
 hartrees
Energy at 0K-132.968685
Energy at 298.15K-132.961771
Nuclear repulsion energy 
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 B3LYPultrafine/6-31G*
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' 3799 3639 28.40      
2 A' 3584 3433 3.17      
3 A' 3511 3364 472.42      
4 A' 3454 3309 5.67      
5 A' 1762 1688 48.63      
6 A' 1713 1641 41.45      
7 A' 1160 1111 137.16      
8 A' 468 448 107.28      
9 A' 220 211 11.74      
10 A' 170 163 50.04      
11 A" 3585 3434 2.29      
12 A" 1721 1648 20.58      
13 A" 710 680 182.27      
14 A" 146 140 35.85      
15 A" 24 23 73.76      

Unscaled Zero Point Vibrational Energy (zpe) 13012.6 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 12466.1 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 B3LYPultrafine/6-31G*
ABC
4.86661 0.21342 0.21137

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.018 0.571 0.000
O2 0.038 1.553 0.000
N3 0.038 -1.369 0.000
H4 -0.888 1.834 0.000
H5 1.038 -1.564 0.000
H6 -0.349 -1.838 0.818
H7 -0.349 -1.838 -0.818

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.98331.94131.53342.38222.56562.5656
O20.98332.92220.96793.27333.50953.5095
N31.94132.92223.33441.01891.01871.0187
H41.53340.96793.33443.90593.80053.8005
H52.38223.27331.01893.90591.63291.6329
H62.56563.50951.01873.80051.63291.6356
H72.56563.50951.01873.80051.63291.6356

picture of Water Ammonia Dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.432      
2 O -0.845      
3 N -0.907      
4 H 0.361      
5 H 0.324      
6 H 0.318      
7 H 0.318      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.243 -3.994 0.000 4.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 56.409
(<r2>)1/2 7.511