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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-489.339206
Energy at 298.15K-489.342756
HF Energy-489.050159
Nuclear repulsion energy91.108356
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/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' 3289 3188 4.46      
2 A' 3084 2989 27.51      
3 A' 2391 2318 10.65      
4 A' 1619 1570 92.14      
5 A' 1379 1337 23.97      
6 A' 1184 1147 89.34      
7 A' 902 874 47.56      
8 A' 605 586 77.70      
9 A' 404 392 9.12      
10 A" 1083 1049 2.97      
11 A" 731 708 92.62      
12 A" 334 324 54.15      

Unscaled Zero Point Vibrational Energy (zpe) 8502.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 8240.6 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/3-21G
ABC
1.79082 0.18862 0.17064

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.256 1.078 0.000
C2 0.000 0.838 0.000
S3 -0.630 -0.921 0.000
H4 1.492 2.087 0.000
H5 -0.838 1.540 0.000
H6 0.639 -1.465 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27862.74801.03662.14432.6167
C21.27861.86811.94581.09352.3898
S32.74801.86813.68112.46991.3809
H41.03661.94583.68112.39293.6532
H52.14431.09352.46992.39293.3487
H62.61672.38981.38093.65323.3487

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 120.540 N1 C2 H5 129.200
C2 N1 H4 113.971 C2 S3 H6 93.494
S3 C2 H5 110.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability