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All results from a given calculation for HNCS (Isothiocyanic acid)

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-490.430034
Energy at 298.15K-490.430810
HF Energy-490.430034
Nuclear repulsion energy80.016993
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/aug-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' 3890 3542 388.54      
2 A' 2157 1965 1224.35      
3 A' 901 820 13.90      
4 A' 628 572 290.17      
5 A' 441 401 310.99      
6 A" 536 488 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 4276.3 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 3894.0 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/aug-cc-pVDZ
ABC
36.33631 0.19670 0.19564

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.103 1.685 0.000
C2 0.000 0.505 0.000
S3 0.009 -1.077 0.000
H4 0.580 2.410 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.18402.76440.9966
C21.18401.58261.9912
S32.76441.58263.5338
H40.99661.99123.5338

picture of Isothiocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 175.322 C2 N1 H4 131.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.138      
2 C -0.197      
3 S 0.263      
4 H 0.073      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.242 2.041 0.000 2.389
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.890 3.377 0.000
y 3.377 -20.082 0.000
z 0.000 0.000 -26.001
Traceless
 xyz
x -1.848 3.377 0.000
y 3.377 5.364 0.000
z 0.000 0.000 -3.515
Polar
3z2-r2-7.031
x2-y2-4.808
xy3.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.149 -0.075 0.000
y -0.075 9.420 0.000
z 0.000 0.000 4.116


<r2> (average value of r2) Å2
<r2> 60.969
(<r2>)1/2 7.808