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: PBEPBE/6-311G**

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/6-311G**
 hartrees
Energy at 0K-492.579449
Energy at 298.15K-492.583098
HF Energy-492.579449
Nuclear repulsion energy93.473203
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/6-311G**
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' 3377 3347 1.01 226.06 0.33 0.49
2 A' 2964 2937 38.41 144.24 0.42 0.59
3 A' 2595 2571 0.35 117.18 0.30 0.46
4 A' 1611 1596 169.03 11.29 0.23 0.37
5 A' 1335 1323 21.58 5.07 0.14 0.25
6 A' 1160 1149 31.15 13.48 0.59 0.74
7 A' 889 881 50.95 5.52 0.45 0.62
8 A' 677 671 78.09 7.00 0.29 0.45
9 A' 416 412 15.12 3.45 0.48 0.65
10 A" 1006 997 1.51 0.87 0.75 0.86
11 A" 710 704 79.49 3.56 0.75 0.86
12 A" 403 399 41.91 4.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8570.7 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 8492.7 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/6-311G**
ABC
1.89042 0.19966 0.18059

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.246 1.050 0.000
C2 0.000 0.780 0.000
S3 -0.618 -0.885 0.000
H4 1.383 2.070 0.000
H5 -0.836 1.502 0.000
H6 0.622 -1.445 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27502.68681.02942.13032.5714
C21.27501.77551.89191.10462.3097
S32.68681.77553.56912.39641.3610
H41.02941.89193.56912.29093.5963
H52.13031.10462.39642.29093.2875
H62.57142.30971.36103.59633.2875

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 122.624 N1 C2 H5 126.932
C2 N1 H4 109.916 C2 S3 H6 93.910
S3 C2 H5 110.444
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.315      
2 C -0.130      
3 S 0.020      
4 H 0.179      
5 H 0.139      
6 H 0.107      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.548 1.145 0.000 1.269
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.961 -1.366 0.000
y -1.366 -19.860 0.000
z 0.000 0.000 -27.887
Traceless
 xyz
x -4.088 -1.366 0.000
y -1.366 8.064 0.000
z 0.000 0.000 -3.976
Polar
3z2-r2-7.952
x2-y2-8.101
xy-1.366
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.226 1.361 0.000
y 1.361 7.141 0.000
z 0.000 0.000 2.771


<r2> (average value of r2) Å2
<r2> 68.263
(<r2>)1/2 8.262