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: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-492.636238
Energy at 298.15K-492.639935
HF Energy-492.483729
Nuclear repulsion energy93.904165
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 B2PLYP/TZVP
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' 3487 3328 2.99 206.04 0.31 0.48
2 A' 3087 2947 28.75 125.91 0.39 0.56
3 A' 2707 2584 0.38 108.92 0.26 0.41
4 A' 1646 1571 169.15 17.97 0.19 0.32
5 A' 1400 1336 20.81 7.01 0.08 0.15
6 A' 1204 1149 27.20 12.80 0.61 0.75
7 A' 935 892 53.48 4.29 0.52 0.69
8 A' 708 675 79.86 4.30 0.23 0.37
9 A' 432 412 17.11 4.47 0.46 0.63
10 A" 1060 1012 2.33 0.53 0.75 0.86
11 A" 738 705 85.54 2.31 0.75 0.86
12 A" 380 363 39.23 2.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8892.4 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 8486.9 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 B2PLYP/TZVP
ABC
1.92996 0.20057 0.18169

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.236 1.054 0.000
C2 0.000 0.776 0.000
S3 -0.614 -0.884 0.000
H4 1.374 2.064 0.000
H5 -0.817 1.500 0.000
H6 0.608 -1.450 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.26732.67981.01872.10152.5823
C21.26731.77031.88291.09172.3081
S32.67981.77033.55552.39291.3466
H41.01871.88293.55552.26263.5966
H52.10151.09172.39292.26263.2766
H62.58232.30811.34663.59663.2766

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 122.963 N1 C2 H5 125.796
C2 N1 H4 110.433 C2 S3 H6 94.573
S3 C2 H5 111.241
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.278      
2 C -0.081      
3 S -0.037      
4 H 0.179      
5 H 0.118      
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
  -0.762 1.218 0.000 1.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.540 -1.546 -0.001
y -1.546 -19.830 -0.001
z -0.001 -0.001 -27.854
Traceless
 xyz
x -4.698 -1.546 -0.001
y -1.546 8.367 -0.001
z -0.001 -0.001 -3.669
Polar
3z2-r2-7.338
x2-y2-8.710
xy-1.546
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.211 1.311 -0.000
y 1.311 6.877 0.000
z -0.000 0.000 3.155


<r2> (average value of r2) Å2
<r2> 68.042
(<r2>)1/2 8.249