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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-490.443143
Energy at 298.15K-490.446843
HF Energy-490.443143
Nuclear repulsion energy93.589634
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 B3LYP/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' 3300 3174 1.96 237.78 0.31 0.48
2 A' 3042 2927 36.55 107.79 0.48 0.65
3 A' 2682 2580 0.68 93.85 0.34 0.51
4 A' 1640 1578 107.80 8.57 0.24 0.39
5 A' 1389 1337 25.95 9.80 0.20 0.33
6 A' 1200 1154 66.79 17.92 0.75 0.86
7 A' 954 918 55.09 6.06 0.66 0.80
8 A' 675 649 84.79 6.57 0.30 0.47
9 A' 429 412 12.56 3.86 0.49 0.66
10 A" 1082 1041 1.58 0.55 0.75 0.86
11 A" 745 717 91.00 5.87 0.75 0.86
12 A" 407 392 42.57 3.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8772.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 8439.5 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 B3LYP/3-21G*
ABC
1.88628 0.20044 0.18119

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.250 1.035 0.000
C2 0.000 0.783 0.000
S3 -0.624 -0.878 0.000
H4 1.464 2.048 0.000
H5 -0.827 1.500 0.000
H6 0.603 -1.438 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27472.67781.03602.12862.5560
C21.27471.77481.93471.09502.3017
S32.67781.77483.59502.38731.3490
H41.03601.93473.59502.35573.5912
H52.12861.09502.38732.35573.2683
H62.55602.30171.34903.59123.2683

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 121.974 N1 C2 H5 127.694
C2 N1 H4 113.305 C2 S3 H6 93.931
S3 C2 H5 110.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.526      
2 C -0.116      
3 S 0.015      
4 H 0.267      
5 H 0.204      
6 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.416 1.432 0.000 1.491
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.625 -0.948 0.000
y -0.948 -19.310 0.000
z 0.000 0.000 -27.459
Traceless
 xyz
x -4.241 -0.948 0.000
y -0.948 8.232 0.000
z 0.000 0.000 -3.991
Polar
3z2-r2-7.982
x2-y2-8.316
xy-0.948
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.414 1.253 0.000
y 1.253 6.082 0.000
z 0.000 0.000 2.042


<r2> (average value of r2) Å2
<r2> 67.875
(<r2>)1/2 8.239