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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-26.741703
Energy at 298.15K-26.745464
HF Energy-26.741703
Nuclear repulsion energy35.042603
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 HF/CEP-121G
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' 3671 3350 6.09 236.54 0.33 0.50
2 A' 3272 2986 25.70 106.14 0.44 0.61
3 A' 2720 2482 0.82 149.35 0.33 0.49
4 A' 1767 1612 195.68 20.33 0.28 0.44
5 A' 1490 1360 38.24 13.18 0.14 0.24
6 A' 1260 1150 48.73 15.93 0.75 0.85
7 A' 986 899 66.63 8.08 0.65 0.79
8 A' 734 670 71.82 13.06 0.21 0.34
9 A' 445 406 22.54 7.68 0.45 0.62
10 A" 1187 1083 5.80 0.59 0.75 0.86
11 A" 807 737 126.68 2.54 0.75 0.86
12 A" 355 324 74.12 3.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9346.7 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 8528.9 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 HF/CEP-121G
ABC
1.88726 0.19429 0.17616

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.240 1.074 0.000
C2 0.000 0.803 0.000
S3 -0.621 -0.900 0.000
H4 1.465 2.059 0.000
H5 -0.807 1.523 0.000
H6 0.594 -1.518 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26952.71341.01012.09592.6714
C21.26951.81321.92941.08152.3961
S32.71341.81323.62042.43081.3631
H41.01011.92943.62042.33403.6814
H52.09591.08152.43082.33403.3486
H62.67142.39611.36313.68143.3486

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 122.343 N1 C2 H5 125.932
C2 N1 H4 115.162 C2 S3 H6 96.920
S3 C2 H5 111.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.263      
2 C -0.313      
3 S 0.054      
4 H 0.252      
5 H 0.180      
6 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.441 1.972 0.000 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.914 -1.859 0.000
y -1.859 -18.280 0.000
z 0.000 0.000 -27.539
Traceless
 xyz
x -6.004 -1.859 0.000
y -1.859 9.946 0.000
z 0.000 0.000 -3.942
Polar
3z2-r2-7.885
x2-y2-10.634
xy-1.859
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.975 1.208 0.000
y 1.208 6.254 0.000
z 0.000 0.000 2.618


<r2> (average value of r2) Å2
<r2> 50.792
(<r2>)1/2 7.127