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 NHCHSH (Methanimidothioic acid)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-492.156474
Energy at 298.15K-492.160186
HF Energy-491.617714
Nuclear repulsion energy94.472016
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 MP2/6-311+G(3df,2p)
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' 3513 3315 9.37 166.56 0.29 0.44
2 A' 3106 2930 17.92 109.46 0.34 0.51
3 A' 2747 2592 6.16 94.61 0.17 0.29
4 A' 1623 1531 140.20 22.60 0.20 0.34
5 A' 1378 1300 16.49 5.09 0.07 0.13
6 A' 1196 1128 24.09 12.55 0.45 0.62
7 A' 937 884 57.33 4.11 0.18 0.30
8 A' 737 696 67.50 3.57 0.05 0.09
9 A' 428 404 20.42 2.79 0.30 0.46
10 A" 1057 997 1.71 0.39 0.75 0.86
11 A" 736 694 77.44 1.15 0.75 0.86
12 A" 391 368 28.06 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8924.1 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 8419.0 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 MP2/6-311+G(3df,2p)
ABC
1.93022 0.20400 0.18450

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.247 1.029 0.000
C2 0.000 0.764 0.000
S3 -0.619 -0.869 0.000
H4 1.387 2.039 0.000
H5 -0.801 1.505 0.000
H6 0.593 -1.434 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27482.66151.01932.10262.5489
C21.27481.74571.88391.09162.2765
S32.66151.74573.53222.38041.3376
H41.01931.88393.53222.25213.5628
H52.10261.09162.38042.25213.2531
H62.54892.27651.33763.56283.2531

picture of Methanimidothioic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 122.802 N1 C2 H5 125.201
C2 N1 H4 109.913 C2 S3 H6 94.248
S3 C2 H5 111.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability