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: B3PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-487.140666
Energy at 298.15K-487.144298
HF Energy-487.140666
Nuclear repulsion energy92.871587
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/STO-3G
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' 3484 3083 9.53 93.83 0.27 0.43
2 A' 3345 2960 1.28 42.54 0.61 0.76
3 A' 2985 2642 10.19 58.66 0.28 0.44
4 A' 1732 1533 74.87 8.99 0.17 0.28
5 A' 1453 1286 27.22 5.27 0.09 0.17
6 A' 1330 1177 8.71 20.96 0.73 0.85
7 A' 1055 933 30.96 6.00 0.48 0.65
8 A' 838 742 41.04 4.95 0.28 0.44
9 A' 435 385 12.33 3.00 0.55 0.71
10 A" 1100 974 0.90 0.36 0.75 0.86
11 A" 738 653 42.06 3.50 0.75 0.86
12 A" 431 382 27.75 6.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9462.5 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 8374.3 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/STO-3G
ABC
1.80500 0.19959 0.17972

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.293 1.010 0.000
C2 0.000 0.775 0.000
S3 -0.640 -0.868 0.000
H4 1.394 2.078 0.000
H5 -0.801 1.541 0.000
H6 0.592 -1.447 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.31432.69491.07342.16032.5549
C21.31431.76331.90801.10792.2998
S32.69491.76333.57992.41411.3612
H41.07341.90803.57992.25933.6154
H52.16031.10792.41412.25933.2965
H62.55492.29981.36123.61543.2965

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 121.556 N1 C2 H5 126.010
C2 N1 H4 105.645 C2 S3 H6 93.902
S3 C2 H5 112.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.307      
2 C -0.093      
3 S 0.147      
4 H 0.151      
5 H 0.079      
6 H 0.022      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.011 0.515 0.000 1.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.742 -1.189 0.000
y -1.189 -18.412 0.000
z 0.000 0.000 -23.443
Traceless
 xyz
x -4.815 -1.189 0.000
y -1.189 6.181 0.000
z 0.000 0.000 -1.366
Polar
3z2-r2-2.732
x2-y2-7.331
xy-1.189
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.151 0.897 0.000
y 0.897 3.956 0.000
z 0.000 0.000 0.556


<r2> (average value of r2) Å2
<r2> 66.849
(<r2>)1/2 8.176