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: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-492.551204
Energy at 298.15K-492.554851
HF Energy-492.551204
Nuclear repulsion energy93.216573
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 PBEPBE/cc-pVDZ
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' 3339 3320 0.26 239.10 0.31 0.48
2 A' 2962 2944 36.73 150.33 0.40 0.57
3 A' 2589 2574 0.33 112.40 0.26 0.41
4 A' 1618 1609 155.06 12.48 0.20 0.33
5 A' 1316 1308 23.78 3.80 0.18 0.30
6 A' 1151 1144 29.43 13.99 0.59 0.74
7 A' 880 875 42.05 6.17 0.42 0.60
8 A' 683 679 63.86 6.41 0.31 0.47
9 A' 409 406 13.92 3.51 0.44 0.61
10 A" 999 993 1.73 0.99 0.75 0.86
11 A" 704 700 62.91 4.07 0.75 0.86
12 A" 415 412 34.12 5.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8531.8 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 8482.3 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 PBEPBE/cc-pVDZ
ABC
1.86790 0.19914 0.17995

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.253 1.048 0.000
C2 0.000 0.780 0.000
S3 -0.621 -0.885 0.000
H4 1.380 2.077 0.000
H5 -0.845 1.506 0.000
H6 0.629 -1.444 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4 H5 H6
N11.28122.69171.03702.14722.5692
C21.28121.77631.89431.11422.3115
S32.69171.77633.57442.40091.3699
H41.03701.89433.57442.29743.6007
H52.14721.11422.40092.29743.2982
H62.56922.31151.36993.60073.2982

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 122.545 N1 C2 H5 127.241
C2 N1 H4 109.146 C2 S3 H6 93.662
S3 C2 H5 110.215
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.148      
2 C -0.071      
3 S -0.031      
4 H 0.095      
5 H 0.049      
6 H 0.107      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.525 1.014 0.000 1.142
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.219 -1.236 0.000
y -1.236 -19.850 0.000
z 0.000 0.000 -27.115
Traceless
 xyz
x -3.737 -1.236 0.000
y -1.236 7.317 0.000
z 0.000 0.000 -3.580
Polar
3z2-r2-7.160
x2-y2-7.369
xy-1.236
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.899 1.212 0.000
y 1.212 6.962 0.000
z 0.000 0.000 2.452


<r2> (average value of r2) Å2
<r2> 68.138
(<r2>)1/2 8.255