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

using model chemistry: PBE1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-492.573508
Energy at 298.15K-492.577210
HF Energy-492.573508
Nuclear repulsion energy94.368360
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 PBE1PBE/6-31G(2df,p)
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' 3516 3365 3.95 182.27 0.31 0.48
2 A' 3076 2944 26.30 99.24 0.41 0.58
3 A' 2718 2601 1.69 91.95 0.28 0.44
4 A' 1703 1629 163.25 17.23 0.25 0.40
5 A' 1380 1321 23.95 4.81 0.13 0.24
6 A' 1196 1144 31.54 12.88 0.64 0.78
7 A' 924 884 49.83 4.66 0.45 0.62
8 A' 718 687 68.19 5.30 0.17 0.29
9 A' 422 404 18.28 2.86 0.42 0.59
10 A" 1068 1022 3.94 0.45 0.75 0.86
11 A" 738 706 64.96 4.14 0.75 0.86
12 A" 400 382 34.43 0.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8928.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 8544.9 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 PBE1PBE/6-31G(2df,p)
ABC
1.93758 0.20318 0.18389

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.233 1.046 0.000
C2 0.000 0.769 0.000
S3 -0.611 -0.877 0.000
H4 1.365 2.057 0.000
H5 -0.827 1.489 0.000
H6 0.608 -1.447 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26402.66411.01952.10752.5702
C21.26401.75511.87661.09682.2976
S32.66411.75513.53672.37571.3456
H41.01951.87663.53672.26403.5848
H52.10751.09682.37572.26403.2680
H62.57022.29761.34563.58483.2680

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 123.036 N1 C2 H5 126.275
C2 N1 H4 110.066 C2 S3 H6 94.710
S3 C2 H5 110.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.419      
2 C -0.004      
3 S -0.191      
4 H 0.258      
5 H 0.150      
6 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.639 1.119 0.000 1.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.328 -1.545 0.000
y -1.545 -19.533 0.000
z 0.000 0.000 -27.194
Traceless
 xyz
x -3.964 -1.545 0.000
y -1.545 7.728 0.000
z 0.000 0.000 -3.764
Polar
3z2-r2-7.528
x2-y2-7.794
xy-1.545
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.843 1.271 0.000
y 1.271 6.672 0.000
z 0.000 0.000 3.304


<r2> (average value of r2) Å2
<r2> 66.994
(<r2>)1/2 8.185