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

using model chemistry: CCSD(T)_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 CCSD(T)_cp_opt/3-21G
 hartrees
Energy at 0K-131.726046
Energy at 298.15K-131.730652
Nuclear repulsion energy11.766405
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 CCSD(T)_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' 3504 3504        
2 A' 3474 3474        
3 A' 3337 3337        
4 A' 3306 3306        
5 A' 1784 1784        
6 A' 1779 1779        
7 A' 1116 1116        
8 A' 493 493        
9 A' 227 227        
10 A' 201 201        
11 A" 3473 3473        
12 A" 1777 1777        
13 A" 775 775        
14 A" 232 232        
15 A" 35 35        

Unscaled Zero Point Vibrational Energy (zpe) 12755.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12755.5 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 CCSD(T)_cp_opt/3-21G
ABC
4.63878 0.20273 0.20073

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)_cp_opt/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.011 0.588 0.000
O2 -0.040 1.592 0.000
N3 -0.040 -1.415 0.000
H4 0.913 1.874 0.000
H5 0.848 -1.931 0.000
H6 -0.576 -1.683 0.834
H7 -0.576 -1.683 -0.834

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H11.00442.00311.58412.66182.48432.4843
O21.00443.00700.99403.63343.42173.4217
N32.00313.00703.42441.02731.02761.0276
H41.58410.99403.42443.80583.94553.9455
H52.66183.63341.02733.80581.66971.6697
H62.48433.42171.02763.94551.66971.6689
H72.48433.42171.02763.94551.66971.6689

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 104.866 H1 N3 H5 119.349
H1 N3 H6 105.545 H1 N3 H7 105.545
O2 H1 N3 177.566 H5 N3 H6 108.692
H5 N3 H7 108.692 H6 N3 H7 108.600
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability