return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/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=FULL/STO-3G
 hartrees
Energy at 0K-486.166349
Energy at 298.15K-486.169957
HF Energy-486.006393
Nuclear repulsion energy92.254426
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/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 3157 16.30 75.69 0.29 0.45
2 A' 3411 3032 3.84 36.22 0.48 0.65
3 A' 3090 2746 11.50 56.28 0.27 0.43
4 A' 1687 1499 45.52 2.26 0.44 0.61
5 A' 1446 1286 9.00 3.89 0.24 0.38
6 A' 1350 1200 6.98 22.88 0.71 0.83
7 A' 1091 970 33.88 4.92 0.52 0.68
8 A' 843 749 28.57 1.61 0.21 0.35
9 A' 433 385 11.43 2.29 0.56 0.72
10 A" 1135 1009 2.21 0.69 0.75 0.86
11 A" 734 652 31.32 2.71 0.75 0.86
12 A" 395 351 22.95 6.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9582.4 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 8517.8 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/STO-3G
ABC
1.77268 0.19682 0.17715

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.312 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
N11.33142.71531.07422.16842.5596
C21.33141.77611.91291.10972.2995
S32.71531.77613.59472.44461.3513
H41.07421.91293.59472.24793.6182
H52.16841.10972.44462.24793.3054
H62.55962.29951.35133.61823.3054

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 121.136 N1 C2 H5 125.075
C2 N1 H4 104.837 C2 S3 H6 93.668
S3 C2 H5 113.789
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability