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 NH2SH (Thiohydroxylamine)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS trans 1A'
1 2 yes CS cis 1A'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-451.767929
Energy at 298.15K-451.771533
HF Energy-451.527544
Nuclear repulsion energy58.040031
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=FULL/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' 3542 3358 9.24      
2 A' 2704 2563 50.71      
3 A' 1741 1651 9.93      
4 A' 1094 1037 4.86      
5 A' 887 841 36.05      
6 A' 316 299 261.59      
7 A" 3666 3476 21.60      
8 A" 1154 1094 7.11      
9 A" 596 565 40.10      

Unscaled Zero Point Vibrational Energy (zpe) 7850.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 7441.9 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 MP2=FULL/3-21G*
ABC
5.13315 0.47542 0.47108

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.028 1.085 0.000
S2 0.028 -0.613 0.000
H3 -1.294 -0.855 0.000
H4 0.330 1.532 0.857
H5 0.330 1.532 -0.857

Atom - Atom Distances (Å)
  N1 S2 H3 H4 H5
N11.69732.34781.01271.0127
S21.69731.34422.32942.3294
H32.34781.34423.01253.0125
H41.01272.32943.01251.7131
H51.01272.32943.01251.7131

picture of Thiohydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 S2 H3 100.409 S2 N1 H4 116.233
S2 N1 H5 116.233 H4 N1 H5 115.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-451.768238
Energy at 298.15K-451.771956
HF Energy-451.528188
Nuclear repulsion energy58.310084
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=FULL/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' 3548 3363 3.55      
2 A' 2615 2479 104.49      
3 A' 1734 1644 3.12      
4 A' 1080 1023 39.64      
5 A' 898 851 19.96      
6 A' 380 360 368.20      
7 A" 3676 3485 22.15      
8 A" 1140 1081 9.08      
9 A" 679 644 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 7874.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 7465.2 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=FULL/3-21G*
ABC
5.18352 0.48045 0.47683

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.067 1.074 0.000
S2 0.067 -0.606 0.000
H3 -1.245 -0.942 0.000
H4 -0.149 1.560 0.861
H5 -0.149 1.560 -0.861

Atom - Atom Distances (Å)
  N1 S2 H3 H4 H5
N11.67962.40521.01181.0118
S21.67961.35482.34072.3407
H32.40521.35482.86402.8640
H41.01182.34072.86401.7211
H51.01182.34072.86401.7211

picture of Thiohydroxylamine state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 S2 H3 104.356 S2 N1 H4 118.733
S2 N1 H5 118.733 H4 N1 H5 116.528
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability