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

using model chemistry: CCSD(T)/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)/3-21G
 hartrees
Energy at 0K-131.733910
Energy at 298.15K-131.738543
HF Energy-131.472666
Counterpoise corrected energy-131.726046
CP Energy at 298.15K-131.730652
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy38.567072
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)/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' 3497 3464        
2 A' 3487 3454        
3 A' 3350 3319        
4 A' 3286 3255        
5 A' 1799 1782        
6 A' 1772 1756        
7 A' 1084 1074        
8 A' 522 517        
9 A' 237 234        
10 A' 217 215        
11 A" 3488 3455        
12 A" 1768 1752        
13 A" 835 828        
14 A" 202 200        
15 A" 33 32        

Unscaled Zero Point Vibrational Energy (zpe) 12788.5 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 12668.3 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)/3-21G
ABC
4.57461 0.21470 0.21238

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.042 0.545 0.000
O2 -0.041 1.550 0.000
N3 -0.041 -1.373 0.000
H4 0.920 1.804 0.000
H5 0.871 -1.844 0.000
H6 -0.568 -1.645 0.838
H7 -0.568 -1.645 -0.838

Atom - Atom Distances (Å)
  H1 O2 N3 H4 H5 H6 H7
H11.00481.91811.58452.55752.40302.4030
O21.00482.92290.99433.51423.34453.3445
N31.91812.92293.31941.02641.02651.0265
H41.58450.99433.31943.64833.84873.8487
H52.55753.51421.02643.64831.67741.6774
H62.40303.34451.02653.84871.67741.6753
H72.40303.34451.02653.84871.67741.6753

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 104.861 H1 N3 H5 117.330
H1 N3 H6 105.335 H1 N3 H7 105.335
O2 H1 N3 179.927 H5 N3 H6 109.585
H5 N3 H7 109.585 H6 N3 H7 109.374
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCSD(T)/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.403      
2 O -0.789      
3 N -0.866      
4 H 0.323      
5 H 0.305      
6 H 0.312      
7 H 0.312      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.489 -4.523 0.000 4.762
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> 55.933
(<r2>)1/2 7.479