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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-491.401315
Energy at 298.15K-491.402035
HF Energy-491.401315
Nuclear repulsion energy79.275952
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/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' 3608 3567 214.06      
2 A' 2019 1996 588.58      
3 A' 863 854 1.73      
4 A' 633 626 316.47      
5 A' 445 440 58.32      
6 A" 470 464 5.40      

Unscaled Zero Point Vibrational Energy (zpe) 4019.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 3973.2 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/TZVP
ABC
36.84496 0.19329 0.19228

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.163 1.698 0.000
C2 0.000 0.498 0.000
S3 0.041 -1.084 0.000
H4 0.479 2.480 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21082.78941.0122
C21.21081.58272.0391
S32.78941.58273.5909
H41.01222.03913.5909

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 173.758 C2 N1 H4 132.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.233      
2 C 0.075      
3 S -0.098      
4 H 0.257      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.173 1.682 0.000 2.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.560 3.123 0.000
y 3.123 -19.286 0.000
z 0.000 0.000 -25.264
Traceless
 xyz
x -2.285 3.123 0.000
y 3.123 5.626 0.000
z 0.000 0.000 -3.341
Polar
3z2-r2-6.683
x2-y2-5.274
xy3.123
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.883 -0.314 0.000
y -0.314 9.521 0.000
z 0.000 0.000 2.741


<r2> (average value of r2) Å2
<r2> 61.453
(<r2>)1/2 7.839