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: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-27.476820
Energy at 298.15K-27.480467
HF Energy-27.476820
Nuclear repulsion energy34.979798
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/CEP-31G*
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' 3458 3339 0.64 192.87 0.32 0.48
2 A' 3069 2963 50.24 96.90 0.44 0.61
3 A' 2662 2571 1.96 115.09 0.32 0.49
4 A' 1642 1586 185.42 20.46 0.16 0.28
5 A' 1377 1330 24.61 6.51 0.21 0.35
6 A' 1211 1170 22.48 16.79 0.70 0.82
7 A' 930 898 48.48 6.33 0.52 0.69
8 A' 700 676 76.66 6.83 0.25 0.40
9 A' 417 402 17.67 3.86 0.43 0.61
10 A" 1037 1002 0.94 0.50 0.75 0.86
11 A" 722 698 92.72 2.16 0.75 0.86
12 A" 384 371 49.07 5.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8804.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 8502.1 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/CEP-31G*
ABC
1.87401 0.19582 0.17730

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.258 1.065 0.000
C2 0.000 0.784 0.000
S3 -0.622 -0.893 0.000
H4 1.374 2.089 0.000
H5 -0.831 1.514 0.000
H6 0.612 -1.470 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28862.71471.03072.13642.6164
C21.28861.78931.89481.10572.3362
S32.71471.78933.58892.41601.3623
H41.03071.89483.58892.27883.6402
H52.13641.10572.41602.27883.3145
H62.61642.33621.36233.64023.3145

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 122.935 N1 C2 H5 126.144
C2 N1 H4 109.056 C2 S3 H6 94.708
S3 C2 H5 110.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.138      
2 C -0.377      
3 S -0.112      
4 H 0.253      
5 H 0.222      
6 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.824 1.175 0.000 1.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.291 -1.837 0.000
y -1.837 -18.377 0.000
z 0.000 0.000 -26.995
Traceless
 xyz
x -4.605 -1.837 0.000
y -1.837 8.766 0.000
z 0.000 0.000 -4.161
Polar
3z2-r2-8.322
x2-y2-8.914
xy-1.837
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.737 1.545 0.000
y 1.545 6.692 0.000
z 0.000 0.000 2.301


<r2> (average value of r2) Å2
<r2> 50.051
(<r2>)1/2 7.075