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

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-489.310286
Energy at 298.15K-489.313892
HF Energy-489.051914
Nuclear repulsion energy91.740920
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 CISD/3-21G
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' 3387 3188 0.82      
2 A' 3152 2967 25.68      
3 A' 2501 2354 7.22      
4 A' 1685 1586 107.56      
5 A' 1418 1335 27.15      
6 A' 1209 1138 83.05      
7 A' 928 874 50.40      
8 A' 630 593 79.91      
9 A' 416 392 11.02      
10 A" 1121 1055 3.39      
11 A" 755 711 96.90      
12 A" 337 318 59.35      

Unscaled Zero Point Vibrational Energy (zpe) 8769.5 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 8254.7 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 CISD/3-21G
ABC
1.82678 0.19089 0.17283

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.244 1.077 0.000
C2 0.000 0.830 0.000
S3 -0.624 -0.916 0.000
H4 1.480 2.079 0.000
H5 -0.834 1.530 0.000
H6 0.628 -1.470 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26812.73121.02982.12642.6204
C21.26811.85411.93651.08842.3844
S32.73121.85413.66012.45461.3690
H41.02981.93653.66012.37793.6502
H52.12641.08842.45462.37793.3370
H62.62042.38441.36903.65023.3370

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 120.883 N1 C2 H5 128.780
C2 N1 H4 114.465 C2 S3 H6 94.219
S3 C2 H5 110.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability