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: HF/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 HF/6-311G*
 hartrees
Energy at 0K-491.588379
Energy at 298.15K-491.592184
HF Energy-491.588379
Nuclear repulsion energy94.679302
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 HF/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' 3749 3390 2.19 191.69 0.34 0.51
2 A' 3253 2942 37.34 99.93 0.42 0.59
3 A' 2848 2576 0.06 122.51 0.36 0.53
4 A' 1848 1671 197.97 24.38 0.28 0.44
5 A' 1534 1388 38.45 6.38 0.10 0.19
6 A' 1320 1194 23.99 13.22 0.67 0.80
7 A' 1032 934 61.03 5.08 0.63 0.78
8 A' 761 688 74.90 4.30 0.15 0.27
9 A' 461 417 21.83 4.05 0.47 0.64
10 A" 1196 1082 9.15 0.14 0.75 0.86
11 A" 802 726 85.65 3.51 0.75 0.86
12 A" 376 340 56.15 3.85 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9589.9 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 8673.1 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 HF/6-311G*
ABC
1.98145 0.20295 0.18410

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.211 1.061 0.000
C2 0.000 0.776 0.000
S3 -0.601 -0.885 0.000
H4 1.353 2.052 0.000
H5 -0.809 1.497 0.000
H6 0.596 -1.465 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.24432.65921.00202.06692.5990
C21.24431.76651.86041.08362.3185
S32.65921.76653.52842.39091.3303
H41.00201.86043.52842.23273.5976
H52.06691.08362.39092.23273.2779
H62.59902.31851.33033.59763.2779

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 123.127 N1 C2 H5 125.072
C2 N1 H4 111.378 C2 S3 H6 95.923
S3 C2 H5 111.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.551      
2 C -0.071      
3 S -0.084      
4 H 0.308      
5 H 0.225      
6 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.687 1.491 0.000 1.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.659 -1.824 0.000
y -1.824 -19.430 0.000
z 0.000 0.000 -28.251
Traceless
 xyz
x -4.819 -1.824 0.000
y -1.824 9.025 0.000
z 0.000 0.000 -4.207
Polar
3z2-r2-8.414
x2-y2-9.229
xy-1.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.665 1.132 0.000
y 1.132 6.016 0.000
z 0.000 0.000 2.536


<r2> (average value of r2) Å2
<r2> 67.409
(<r2>)1/2 8.210