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

using model chemistry: MP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-486.165091
Energy at 298.15K-486.168698
HF Energy-486.006356
Nuclear repulsion energy92.241224
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/STO-3G
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' 3552 3097 16.26 75.73 0.29 0.45
2 A' 3411 2974 3.83 36.24 0.48 0.65
3 A' 3088 2693 11.46 56.30 0.27 0.43
4 A' 1686 1470 45.49 2.23 0.44 0.61
5 A' 1446 1261 8.99 3.89 0.24 0.39
6 A' 1349 1176 7.01 22.89 0.71 0.83
7 A' 1090 951 33.76 4.94 0.52 0.68
8 A' 842 734 28.56 1.62 0.21 0.35
9 A' 433 377 11.43 2.29 0.56 0.72
10 A" 1135 990 2.21 0.69 0.75 0.86
11 A" 734 640 31.33 2.71 0.75 0.86
12 A" 394 344 23.06 6.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9579.9 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 8352.7 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/STO-3G
ABC
1.77196 0.19677 0.17710

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.313 1.006 0.000
C2 0.000 0.782 0.000
S3 -0.649 -0.871 0.000
H4 1.409 2.076 0.000
H5 -0.782 1.570 0.000
H6 0.574 -1.445 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.33152.71561.07432.16872.5598
C21.33151.77661.91291.10982.2999
S32.71561.77663.59512.44501.3514
H41.07431.91293.59512.24823.6185
H52.16871.10982.44502.24823.3058
H62.55982.29991.35143.61853.3058

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 121.124 N1 C2 H5 125.088
C2 N1 H4 104.831 C2 S3 H6 93.668
S3 C2 H5 113.788
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability