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

using model chemistry: PBEPBEultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-491.356556
Energy at 298.15K-491.357312
HF Energy-491.356556
Nuclear repulsion energy79.353925
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 PBEPBEultrafine/6-31G(2df,p)
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' 3614 3577 187.82      
2 A' 2030 2009 527.87      
3 A' 869 860 1.26      
4 A' 669 662 315.41      
5 A' 457 452 55.92      
6 A" 483 478 3.24      

Unscaled Zero Point Vibrational Energy (zpe) 4060.5 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 4018.7 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 PBEPBEultrafine/6-31G(2df,p)
ABC
33.71858 0.19393 0.19282

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.175 1.697 0.000
C2 0.000 0.495 0.000
S3 0.045 -1.082 0.000
H4 0.496 2.457 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21522.78801.0130
C21.21521.57732.0238
S32.78801.57733.5673
H41.01302.02383.5673

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 173.388 C2 N1 H4 130.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.501      
2 C 0.385      
3 S -0.190      
4 H 0.306      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.059 1.721 0.000 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.058 2.877 0.000
y 2.877 -18.999 0.000
z 0.000 0.000 -24.826
Traceless
 xyz
x -2.145 2.877 0.000
y 2.877 5.442 0.000
z 0.000 0.000 -3.297
Polar
3z2-r2-6.594
x2-y2-5.058
xy2.877
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.141 -0.189 0.000
y -0.189 8.969 0.000
z 0.000 0.000 3.001


<r2> (average value of r2) Å2
<r2> 61.026
(<r2>)1/2 7.812