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

using model chemistry: MP2_cp_opt/6-31+G**

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_cp_opt/6-31+G**
 hartrees
Energy at 0K-132.635009
Energy at 298.15K-132.639278
Nuclear repulsion energy11.944173
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_cp_opt/6-31+G**
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' 3971 3735 100.29      
2 A' 3725 3504 13.46      
3 A' 3704 3484 422.70      
4 A' 3559 3347 0.82      
5 A' 1707 1605 24.93      
6 A' 1665 1566 73.30      
7 A' 1124 1057 250.66      
8 A' 434 408 112.53      
9 A' 188 177 60.85      
10 A' 148 139 31.21      
11 A" 3721 3500 14.11      
12 A" 1704 1602 30.38      
13 A" 685 644 177.08      
14 A" 176 165 70.55      
15 A" 23 22 82.50      

Unscaled Zero Point Vibrational Energy (zpe) 13265.8 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 12477.8 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_cp_opt/6-31+G**
ABC
5.02540 0.19997 0.19842

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2_cp_opt/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.102 0.627 0.000
O2 -0.035 1.591 0.000
N3 -0.035 -1.429 0.000
H4 0.845 1.981 0.000
H5 0.762 -2.054 0.000
H6 -0.594 -1.639 0.818
H7 -0.594 -1.639 -0.818

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H10.97382.06061.54452.76072.50742.5074
O20.97383.02030.96223.73083.37853.3785
N32.06063.02033.52181.01231.01281.0128
H41.54450.96223.52184.03553.98033.9803
H52.76073.73081.01234.03551.63701.6370
H62.50743.37851.01283.98031.63701.6357
H72.50743.37851.01283.98031.63701.6357

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 105.841 H1 N3 H5 124.288
H1 N3 H6 104.075 H1 N3 H7 104.075
O2 H1 N3 168.135 H5 N3 H6 107.876
H5 N3 H7 107.876 H6 N3 H7 107.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability