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

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-489.053425
Energy at 298.15K-489.057121
HF Energy-489.053425
Nuclear repulsion energy92.870223
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/3-21G
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' 3600 3260 3.91 255.92 0.32 0.49
2 A' 3294 2983 23.73 92.61 0.45 0.62
3 A' 2654 2403 2.18 133.42 0.37 0.54
4 A' 1827 1655 147.98 10.02 0.37 0.54
5 A' 1488 1348 42.16 9.98 0.16 0.28
6 A' 1261 1142 76.87 18.31 0.74 0.85
7 A' 985 892 57.32 12.81 0.74 0.85
8 A' 667 604 86.54 15.99 0.26 0.41
9 A' 438 397 13.56 7.94 0.48 0.65
10 A" 1213 1099 5.87 0.14 0.75 0.86
11 A" 809 733 111.65 4.55 0.75 0.86
12 A" 337 305 73.28 8.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9287.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 8410.4 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/3-21G
ABC
1.89672 0.19468 0.17656

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.218 1.079 0.000
C2 0.000 0.820 0.000
S3 -0.611 -0.910 0.000
H4 1.463 2.062 0.000
H5 -0.823 1.513 0.000
H6 0.608 -1.489 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.24492.70161.01342.08652.6395
C21.24491.83461.91951.07602.3881
S32.70161.83463.62422.43221.3497
H41.01341.91953.62422.35163.6529
H52.08651.07602.43222.35163.3261
H62.63952.38811.34973.65293.3261

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 121.448 N1 C2 H5 127.906
C2 N1 H4 116.038 C2 S3 H6 95.977
S3 C2 H5 110.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.602      
2 C -0.177      
3 S 0.104      
4 H 0.312      
5 H 0.250      
6 H 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.087 2.096 0.000 2.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.790 -1.536 0.000
y -1.536 -19.419 0.000
z 0.000 0.000 -28.197
Traceless
 xyz
x -4.982 -1.536 0.000
y -1.536 9.074 0.000
z 0.000 0.000 -4.093
Polar
3z2-r2-8.186
x2-y2-9.371
xy-1.536
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.244 1.056 0.000
y 1.056 5.824 0.000
z 0.000 0.000 1.664


<r2> (average value of r2) Å2
<r2> 69.633
(<r2>)1/2 8.345