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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-492.673101
Energy at 298.15K-492.676750
HF Energy-492.673101
Nuclear repulsion energy92.389055
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 B3PW91/6-31G
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' 3447 3301 0.82 247.10 0.32 0.48
2 A' 3121 2989 28.04 127.08 0.45 0.62
3 A' 2543 2436 8.74 127.77 0.36 0.53
4 A' 1680 1609 169.08 7.67 0.22 0.36
5 A' 1383 1325 19.57 10.41 0.19 0.33
6 A' 1152 1103 63.83 17.89 0.75 0.85
7 A' 901 863 64.08 8.02 0.66 0.80
8 A' 665 637 97.60 9.37 0.31 0.47
9 A' 424 406 12.47 5.77 0.46 0.63
10 A" 1070 1024 1.84 0.18 0.75 0.86
11 A" 743 712 116.92 4.02 0.75 0.86
12 A" 383 367 62.31 3.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8755.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8384.8 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 B3PW91/6-31G
ABC
1.85168 0.19429 0.17584

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.246 1.065 0.000
C2 0.000 0.808 0.000
S3 -0.624 -0.900 0.000
H4 1.481 2.064 0.000
H5 -0.834 1.514 0.000
H6 0.621 -1.483 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.27262.71341.02612.12802.6238
C21.27261.81851.94191.09292.3734
S32.71341.81853.63582.42351.3750
H41.02611.94193.63582.37893.6499
H52.12801.09292.42352.37893.3316
H62.62382.37341.37503.64993.3316

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 121.755 N1 C2 H5 128.056
C2 N1 H4 114.872 C2 S3 H6 94.995
S3 C2 H5 110.189
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.466      
2 C -0.242      
3 S 0.113      
4 H 0.295      
5 H 0.200      
6 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.246 1.738 0.000 1.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.394 -1.377 0.000
y -1.377 -18.979 0.000
z 0.000 0.000 -27.644
Traceless
 xyz
x -5.083 -1.377 0.000
y -1.377 9.040 0.000
z 0.000 0.000 -3.957
Polar
3z2-r2-7.913
x2-y2-9.415
xy-1.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.806 1.307 0.000
y 1.307 6.496 0.000
z 0.000 0.000 2.190


<r2> (average value of r2) Å2
<r2> 69.579
(<r2>)1/2 8.341