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

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-492.818435
Energy at 298.15K-492.822136
HF Energy-492.818435
Nuclear repulsion energy94.371105
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 mPW1PW91/6-31G(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' 3520 3361 3.68 182.86 0.31 0.48
2 A' 3082 2943 27.27 99.97 0.41 0.58
3 A' 2722 2599 1.40 92.57 0.29 0.45
4 A' 1702 1625 164.28 17.09 0.25 0.40
5 A' 1385 1322 24.14 4.98 0.13 0.23
6 A' 1199 1145 31.85 12.72 0.64 0.78
7 A' 927 885 49.81 4.65 0.46 0.63
8 A' 716 683 69.31 5.30 0.17 0.29
9 A' 422 403 17.98 2.94 0.42 0.59
10 A" 1071 1022 3.95 0.40 0.75 0.86
11 A" 739 705 65.19 4.06 0.75 0.86
12 A" 397 379 34.28 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8941.2 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 8536.1 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 mPW1PW91/6-31G(2df,p)
ABC
1.94147 0.20302 0.18380

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.232 1.047 0.000
C2 0.000 0.769 0.000
S3 -0.611 -0.878 0.000
H4 1.364 2.057 0.000
H5 -0.826 1.488 0.000
H6 0.606 -1.449 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26342.66491.01842.10502.5741
C21.26341.75611.87641.09522.2995
S32.66491.75613.53732.37541.3440
H41.01841.87643.53732.26303.5876
H52.10501.09522.37542.26303.2677
H62.57412.29951.34403.58763.2677

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 123.078 N1 C2 H5 126.230
C2 N1 H4 110.174 C2 S3 H6 94.832
S3 C2 H5 110.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.421      
2 C -0.005      
3 S -0.189      
4 H 0.259      
5 H 0.152      
6 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.651 1.118 0.000 1.293
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.285 -1.551 0.000
y -1.551 -19.477 0.000
z 0.000 0.000 -27.131
Traceless
 xyz
x -3.981 -1.551 0.000
y -1.551 7.731 0.000
z 0.000 0.000 -3.750
Polar
3z2-r2-7.500
x2-y2-7.808
xy-1.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.833 1.272 0.000
y 1.272 6.658 0.000
z 0.000 0.000 3.303


<r2> (average value of r2) Å2
<r2> 66.984
(<r2>)1/2 8.184