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

using model chemistry: QCISD/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 QCISD/6-31G**
 hartrees
Energy at 0K-492.014077
Energy at 298.15K-492.017776
HF Energy-491.553469
Nuclear repulsion energy93.898661
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 QCISD/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' 3539 3331 0.17      
2 A' 3152 2967 32.19      
3 A' 2785 2622 1.05      
4 A' 1696 1597 113.09      
5 A' 1434 1350 20.89      
6 A' 1242 1169 29.52      
7 A' 975 918 51.97      
8 A' 741 697 59.73      
9 A' 436 411 18.25      
10 A" 1090 1026 4.85      
11 A" 746 702 71.07      
12 A" 358 337 38.08      

Unscaled Zero Point Vibrational Energy (zpe) 9097.2 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 8564.1 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 QCISD/6-31G**
ABC
1.91428 0.20091 0.18183

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.248 1.043 0.000
C2 0.000 0.775 0.000
S3 -0.619 -0.880 0.000
H4 1.379 2.055 0.000
H5 -0.808 1.508 0.000
H6 0.593 -1.440 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27662.67981.02022.10842.5675
C21.27661.76681.88081.09122.2930
S32.67981.76683.54962.39561.3352
H41.02021.88083.54962.25393.5815
H52.10841.09122.39562.25393.2643
H62.56752.29301.33523.58153.2643

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 122.602 N1 C2 H5 125.683
C2 N1 H4 109.439 C2 S3 H6 94.301
S3 C2 H5 111.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability