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

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-490.303736
Energy at 298.15K-490.307377
HF Energy-490.303736
Nuclear repulsion energy92.391719
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 mPW1PW91/3-21G
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' 3374 3220 0.13 251.58 0.31 0.48
2 A' 3116 2975 25.26 107.55 0.47 0.64
3 A' 2512 2398 3.99 109.45 0.36 0.53
4 A' 1684 1608 143.11 5.33 0.19 0.32
5 A' 1374 1312 23.21 8.29 0.18 0.31
6 A' 1165 1112 78.06 18.60 0.74 0.85
7 A' 911 869 57.37 9.76 0.70 0.82
8 A' 634 605 105.65 10.84 0.33 0.50
9 A' 416 397 9.22 5.62 0.47 0.64
10 A" 1083 1034 1.17 0.32 0.75 0.86
11 A" 746 712 106.92 3.72 0.75 0.86
12 A" 386 368 63.40 7.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8700.2 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 8305.2 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 mPW1PW91/3-21G
ABC
1.83718 0.19457 0.17594

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.240 1.061 0.000
C2 0.000 0.819 0.000
S3 -0.622 -0.904 0.000
H4 1.477 2.065 0.000
H5 -0.842 1.513 0.000
H6 0.632 -1.455 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26352.70711.03202.13052.5884
C21.26351.83241.93221.09072.3609
S32.70711.83243.63632.42731.3698
H41.03201.93223.63632.38353.6204
H52.13051.09072.42732.38353.3141
H62.58842.36091.36983.62043.3141

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 120.850 N1 C2 H5 129.495
C2 N1 H4 114.275 C2 S3 H6 93.882
S3 C2 H5 109.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.534      
2 C -0.245      
3 S 0.105      
4 H 0.296      
5 H 0.250      
6 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.012 1.844 0.000 1.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.943 -1.289 0.000
y -1.289 -19.262 0.000
z 0.000 0.000 -27.806
Traceless
 xyz
x -4.408 -1.289 0.000
y -1.289 8.612 0.000
z 0.000 0.000 -4.204
Polar
3z2-r2-8.408
x2-y2-8.681
xy-1.289
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.395 1.198 0.000
y 1.198 6.158 0.000
z 0.000 0.000 1.751


<r2> (average value of r2) Å2
<r2> 69.520
(<r2>)1/2 8.338