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All results from a given calculation for NH3NH3 (Ammonia Dimer)

using model chemistry: CCD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no    
1 2 no    

Conformer 1 ()

Jump to S1C2
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-112.842744
Energy at 298.15K 
HF Energy-112.412560
Counterpoise corrected energy-112.843070
CP Energy at 298.15K-112.848229
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy39.790775
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 CCD/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3604 3476 0.00      
2 Ag 3468 3345 0.00      
3 Ag 1674 1615 0.00      
4 Ag 1104 1064 0.00      
5 Ag 407 392 0.00      
6 Ag 130 125 0.00      
7 Au 3611 3483 3.88      
8 Au 1678 1619 19.45      
9 Au 203 195 79.51      
10 Au 46 44 22.09      
11 Bg 3611 3483 0.00      
12 Bg 1668 1609 0.00      
13 Bg 68 65 0.00      
14 Bu 3605 3477 24.45      
15 Bu 3469 3346 21.04      
16 Bu 1655 1596 17.19      
17 Bu 1079 1041 283.70      
18 Bu 93i 90i 198.20      

Unscaled Zero Point Vibrational Energy (zpe) 15492.9 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 14942.9 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 CCD/aug-cc-pVDZ
ABC
4.53678 0.17794 0.17489

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.692 0.860 0.000
N2 0.000 1.612 0.000
N3 0.000 -1.612 0.000
H4 0.200 2.192 0.816
H5 0.200 2.192 -0.816
H6 -0.692 -0.860 0.000
H7 -0.200 -2.192 -0.816
H8 -0.200 -2.192 0.816

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02182.56701.63731.63732.20823.28263.2826
N21.02183.22351.02081.02082.56703.89513.8951
N32.56703.22353.89513.89511.02181.02081.0208
H41.63731.02083.89511.63183.28264.69434.4016
H51.63731.02083.89511.63183.28264.40164.6943
H62.20822.56701.02183.28263.28261.63731.6373
H73.28263.89511.02084.69434.40161.63731.6318
H83.28263.89511.02084.40164.69431.63731.6318

picture of Ammonia Dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 H4 106.555 H1 N2 H5 106.555
H1 H3 N6 58.288 H1 H3 H7 126.866
H1 H3 H8 126.866 N2 H1 H3 121.712
H4 N2 H5 106.115 N6 H3 H7 106.555
N6 H3 H8 106.555 H7 H3 H8 106.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 ()

Jump to S1C1
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-112.843070
Energy at 298.15K-112.848229
HF Energy-112.412894
Counterpoise corrected energy-112.843070
CP Energy at 298.15K-112.848229
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy39.304668
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 CCD/aug-cc-pVDZ
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' 3609 3481 4.34      
2 A' 3591 3464 55.03      
3 A' 3474 3350 4.22      
4 A' 3458 3335 45.31      
5 A' 1670 1610 9.06      
6 A' 1658 1599 12.67      
7 A' 1104 1065 92.04      
8 A' 1094 1055 159.40      
9 A' 380 366 45.88      
10 A' 142 137 27.57      
11 A' 88 85 64.03      
12 A" 3613 3484 3.56      
13 A" 3610 3482 0.31      
14 A" 1688 1628 7.02      
15 A" 1665 1606 14.43      
16 A" 238 229 45.80      
17 A" 106 103 39.25      
18 A" 45 43 8.89      

Unscaled Zero Point Vibrational Energy (zpe) 15615.4 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 15061.1 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 CCD/aug-cc-pVDZ
ABC
3.97639 0.16846 0.16659

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.476 0.728 0.000
N2 -0.009 1.628 0.000
N3 -0.009 -1.578 0.000
H4 0.328 2.142 0.816
H5 0.328 2.142 -0.816
H6 -0.844 -0.990 0.000
H7 -0.083 -2.187 -0.816
H8 -0.083 -2.187 0.816

Atom - Atom Distances (Å)
  H1 N2 N3 H4 H5 H6 H7 H8
H11.02262.35611.63921.63922.16623.07823.0782
N21.02263.20591.02101.02102.74793.90233.9023
N32.35613.20593.82293.82291.02141.02091.0209
H41.63921.02103.82291.63143.44174.64454.3486
H51.63921.02103.82291.63143.44174.34864.6445
H62.16622.74791.02143.44173.44171.63651.6365
H73.07823.90231.02094.64454.34861.63651.6313
H83.07823.90231.02094.34864.64451.63651.6313

picture of Ammonia Dimer state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 H4 106.669 H1 N2 H5 106.669
H1 H3 N6 66.725 H1 H3 H7 126.810
H1 H3 H8 126.810 N2 H1 H3 139.819
H4 N2 H5 106.050 N6 H3 H7 106.507
N6 H3 H8 106.507 H7 H3 H8 106.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability