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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-492.223999
Energy at 298.15K-492.219262
HF Energy-491.545553
Nuclear repulsion energy94.583765
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 CBS-Q
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' 3741 3741 1.68 194.30 0.33 0.49
2 A' 3268 3268 33.30 92.62 0.42 0.59
3 A' 2933 2933 1.16 118.64 0.38 0.55
4 A' 1862 1862 186.79 23.00 0.27 0.43
5 A' 1528 1528 37.71 6.18 0.14 0.24
6 A' 1311 1311 26.55 15.36 0.70 0.83
7 A' 1032 1032 60.38 6.87 0.71 0.83
8 A' 767 767 69.88 4.71 0.18 0.30
9 A' 459 459 21.13 4.24 0.47 0.64
10 A" 1197 1197 10.10 0.15 0.75 0.86
11 A" 802 802 78.91 5.44 0.75 0.86
12 A" 377 377 49.73 1.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9637.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9637.1 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 CBS-Q
ABC
1.89021 0.20198 0.18248

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.215 1.060 0.000
C2 0.000 0.777 0.000
S3 -0.602 -0.885 0.000
H4 1.357 2.054 0.000
H5 -0.813 1.497 0.000
H6 0.588 -1.468 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.24742.66201.00352.07402.6049
C21.24741.76781.86321.08612.3207
S32.66201.76783.53202.39181.3254
H41.00351.86323.53202.23973.6048
H52.07401.08612.39182.23973.2797
H62.60492.32071.32543.60483.2797

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 123.050 N1 C2 H5 125.308
C2 N1 H4 111.271 C2 S3 H6 96.177
S3 C2 H5 111.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability