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

using model chemistry: PBEPBE/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 PBEPBE/3-21G*
 hartrees
Energy at 0K-490.136798
Energy at 298.15K-490.140471
HF Energy-490.136798
Nuclear repulsion energy93.213598
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 PBEPBE/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' 3199 3050 3.65 237.66 0.31 0.48
2 A' 2953 2816 39.89 119.23 0.49 0.66
3 A' 2603 2482 0.89 92.20 0.32 0.49
4 A' 1579 1506 98.51 7.55 0.23 0.37
5 A' 1333 1271 23.30 9.81 0.22 0.37
6 A' 1162 1108 66.69 17.60 0.75 0.86
7 A' 918 875 54.33 5.99 0.63 0.77
8 A' 666 635 84.91 7.96 0.34 0.51
9 A' 417 397 12.34 3.44 0.48 0.65
10 A" 1031 983 0.41 0.93 0.75 0.86
11 A" 722 689 91.87 5.94 0.75 0.86
12 A" 431 411 41.79 3.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8507.0 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 8111.4 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 PBEPBE/3-21G*
ABC
1.84183 0.20005 0.18045

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.266 1.022 0.000
C2 0.000 0.784 0.000
S3 -0.632 -0.874 0.000
H4 1.476 2.048 0.000
H5 -0.835 1.509 0.000
H6 0.612 -1.426 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28812.68311.04712.15712.5342
C21.28811.77521.94251.10562.2938
S32.68311.77523.60302.39171.3607
H41.04711.94253.60302.37303.5800
H52.15711.10562.39172.37303.2723
H62.53422.29381.36073.58003.2723

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 121.485 N1 C2 H5 128.453
C2 N1 H4 112.166 C2 S3 H6 93.070
S3 C2 H5 110.062
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.512      
2 C -0.162      
3 S 0.021      
4 H 0.270      
5 H 0.216      
6 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.372 1.342 0.000 1.393
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.491 -0.859 0.000
y -0.859 -19.368 0.000
z 0.000 0.000 -27.524
Traceless
 xyz
x -4.045 -0.859 0.000
y -0.859 8.139 0.000
z 0.000 0.000 -4.094
Polar
3z2-r2-8.189
x2-y2-8.123
xy-0.859
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.572 1.316 0.000
y 1.316 6.312 0.000
z 0.000 0.000 2.077


<r2> (average value of r2) Å2
<r2> 68.087
(<r2>)1/2 8.251