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: wB97X-D/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 wB97X-D/3-21G
 hartrees
Energy at 0K-490.275285
Energy at 298.15K-490.278924
HF Energy-490.275285
Nuclear repulsion energy92.364078
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 wB97X-D/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3413 3413 0.54 241.83 0.32 0.48
2 A' 3125 3125 23.35 106.49 0.46 0.63
3 A' 2484 2484 3.59 109.98 0.36 0.53
4 A' 1693 1693 139.85 5.08 0.22 0.36
5 A' 1381 1381 23.72 8.40 0.18 0.31
6 A' 1170 1170 80.98 18.55 0.74 0.85
7 A' 918 918 56.98 10.37 0.71 0.83
8 A' 636 636 106.12 10.48 0.32 0.49
9 A' 418 418 9.34 5.78 0.46 0.63
10 A" 1096 1096 1.93 0.27 0.75 0.86
11 A" 749 749 107.75 3.68 0.75 0.86
12 A" 375 375 66.41 7.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8728.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8728.9 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 wB97X-D/3-21G
ABC
1.84018 0.19423 0.17568

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.239 1.064 0.000
C2 0.000 0.820 0.000
S3 -0.621 -0.906 0.000
H4 1.478 2.065 0.000
H5 -0.838 1.518 0.000
H6 0.628 -1.463 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26252.70881.02992.12622.5993
C21.26251.83431.93271.09062.3679
S32.70881.83433.63792.43331.3675
H41.02991.93273.63792.38033.6292
H52.12621.09062.43332.38033.3218
H62.59932.36791.36753.62923.3218

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 120.907 N1 C2 H5 129.117
C2 N1 H4 114.559 C2 S3 H6 94.252
S3 C2 H5 109.976
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.531      
2 C -0.234      
3 S 0.098      
4 H 0.297      
5 H 0.247      
6 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.041 1.938 0.000 1.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.993 -1.320 0.000
y -1.320 -19.133 0.000
z 0.000 0.000 -27.764
Traceless
 xyz
x -4.545 -1.320 0.000
y -1.320 8.746 0.000
z 0.000 0.000 -4.201
Polar
3z2-r2-8.402
x2-y2-8.861
xy-1.320
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.343 1.144 0.000
y 1.144 6.059 0.000
z 0.000 0.000 1.728


<r2> (average value of r2) Å2
<r2> 69.579
(<r2>)1/2 8.341