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

using model chemistry: MP2/6-31G*

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*
 hartrees
Energy at 0K-491.953844
Energy at 298.15K-491.957566
HF Energy-491.543246
Nuclear repulsion energy93.989839
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*
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' 3483 3285 0.66 169.71 0.32 0.48
2 A' 3141 2962 27.81 96.77 0.39 0.56
3 A' 2784 2625 0.37 98.59 0.35 0.52
4 A' 1656 1562 107.42 7.37 0.25 0.40
5 A' 1423 1341 18.14 8.04 0.17 0.29
6 A' 1235 1165 33.21 16.73 0.68 0.81
7 A' 967 911 51.45 6.06 0.68 0.81
8 A' 749 707 71.22 2.79 0.26 0.41
9 A' 441 416 19.59 2.71 0.46 0.63
10 A" 1078 1017 3.70 0.58 0.75 0.86
11 A" 751 708 81.79 4.81 0.75 0.86
12 A" 384 362 44.87 1.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9046.1 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 8530.4 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*
ABC
1.89397 0.20236 0.18282

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.256 1.028 0.000
C2 0.000 0.772 0.000
S3 -0.623 -0.871 0.000
H4 1.399 2.043 0.000
H5 -0.809 1.510 0.000
H6 0.594 -1.438 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28132.67151.02512.12042.5527
C21.28131.75791.88981.09532.2883
S32.67151.75793.54712.38911.3423
H41.02511.88983.54712.27143.5724
H52.12041.09532.38912.27143.2649
H62.55272.28831.34233.57243.2649

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 122.272 N1 C2 H5 126.126
C2 N1 H4 109.542 C2 S3 H6 94.182
S3 C2 H5 111.602
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability