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

using model chemistry: MP2=FULL/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=FULL/6-31G
 hartrees
Energy at 0K-491.723396
Energy at 298.15K-491.727022
HF Energy-491.454421
Nuclear repulsion energy91.464253
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=FULL/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3407 3237 1.78 233.69 0.31 0.48
2 A' 3141 2984 28.11 113.87 0.41 0.59
3 A' 2532 2406 8.73 124.41 0.38 0.55
4 A' 1603 1523 102.16 0.05 0.27 0.42
5 A' 1391 1322 15.02 9.91 0.17 0.29
6 A' 1180 1121 65.79 21.63 0.75 0.85
7 A' 912 866 60.22 8.94 0.69 0.82
8 A' 661 628 81.63 7.53 0.30 0.46
9 A' 425 404 13.73 5.10 0.46 0.63
10 A" 1086 1031 2.76 0.71 0.75 0.86
11 A" 747 710 110.26 4.19 0.75 0.86
12 A" 354 336 57.28 4.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8719.1 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 8284.0 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=FULL/6-31G
ABC
1.80708 0.19040 0.17225

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.270 1.067 0.000
C2 0.000 0.817 0.000
S3 -0.636 -0.906 0.000
H4 1.499 2.073 0.000
H5 -0.825 1.535 0.000
H6 0.614 -1.483 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.29412.74311.03142.14672.6331
C21.29411.83671.95571.09402.3807
S32.74311.83673.66502.44861.3768
H41.03141.95573.66502.38603.6643
H52.14671.09402.44862.38603.3440
H62.63312.38071.37683.66433.3440

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 121.397 N1 C2 H5 127.827
C2 N1 H4 114.005 C2 S3 H6 94.522
S3 C2 H5 110.775
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability