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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-491.992952
Energy at 298.15K-491.996661
HF Energy-491.558062
Nuclear repulsion energy94.099697
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 MP2/6-31+G**
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' 3545 3334 4.17 158.12 0.32 0.48
2 A' 3163 2975 24.61 113.75 0.38 0.55
3 A' 2817 2650 0.56 101.05 0.25 0.40
4 A' 1638 1540 144.12 16.56 0.20 0.33
5 A' 1410 1326 12.57 7.23 0.09 0.17
6 A' 1219 1147 20.44 15.71 0.59 0.74
7 A' 966 909 60.53 5.01 0.42 0.60
8 A' 752 707 75.43 2.28 0.07 0.12
9 A' 438 412 22.02 3.47 0.36 0.53
10 A" 1064 1001 1.35 0.77 0.75 0.86
11 A" 740 696 95.83 1.66 0.75 0.86
12 A" 369 347 37.39 0.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9059.8 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 8521.7 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 MP2/6-31+G**
ABC
1.91593 0.20216 0.18287

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.256 1.032 0.000
C2 0.000 0.767 0.000
S3 -0.623 -0.871 0.000
H4 1.391 2.044 0.000
H5 -0.800 1.508 0.000
H6 0.585 -1.436 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28412.67491.02112.11142.5577
C21.28411.75251.88841.09122.2791
S32.67491.75253.54332.38621.3336
H41.02111.88843.54332.25583.5722
H52.11141.09122.38622.25583.2540
H62.55772.27911.33363.57223.2540

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 122.748 N1 C2 H5 125.268
C2 N1 H4 109.480 C2 S3 H6 94.227
S3 C2 H5 111.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability