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All results from a given calculation for NHCHSH (Methanimidothioic acid)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-492.076583
Energy at 298.15K-492.080287
HF Energy-491.566661
Nuclear repulsion energy94.192426
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 MP2/6-31G(2df,p)
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' 3525 3329 6.22 154.89 0.31 0.47
2 A' 3135 2961 20.40 89.25 0.38 0.55
3 A' 2773 2619 5.03 84.73 0.28 0.44
4 A' 1639 1549 111.40 9.40 0.25 0.40
5 A' 1382 1306 18.81 6.37 0.12 0.22
6 A' 1202 1135 32.49 13.35 0.64 0.78
7 A' 931 880 48.77 4.15 0.53 0.70
8 A' 731 691 67.26 3.64 0.15 0.26
9 A' 425 401 20.01 2.36 0.41 0.58
10 A" 1071 1012 3.87 0.56 0.75 0.86
11 A" 744 703 67.01 3.63 0.75 0.86
12 A" 389 368 34.84 0.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8974.1 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 8476.0 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 MP2/6-31G(2df,p)
ABC
1.90651 0.20302 0.18349

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.250 1.030 0.000
C2 0.000 0.772 0.000
S3 -0.620 -0.872 0.000
H4 1.383 2.042 0.000
H5 -0.810 1.506 0.000
H6 0.597 -1.431 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27632.66701.02062.11392.5461
C21.27631.75661.87771.09292.2823
S32.66701.75663.53572.38521.3393
H41.02061.87773.53572.25733.5607
H52.11391.09292.38522.25733.2564
H62.54612.28231.33933.56073.2564

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 122.338 N1 C2 H5 126.136
C2 N1 H4 109.165 C2 S3 H6 94.014
S3 C2 H5 111.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability