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

using model chemistry: PBE1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31+G**
 hartrees
Energy at 0K-491.376826
Energy at 298.15K-491.377557
HF Energy-491.376826
Nuclear repulsion energy79.757776
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 PBE1PBE/6-31+G**
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' 3756 3588 292.54      
2 A' 2092 1999 788.31      
3 A' 897 857 5.35      
4 A' 620 592 338.12      
5 A' 452 432 93.80      
6 A" 482 461 3.25      

Unscaled Zero Point Vibrational Energy (zpe) 4149.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 3964.0 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 PBE1PBE/6-31+G**
ABC
38.06119 0.19559 0.19459

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.154 1.688 0.000
C2 0.000 0.494 0.000
S3 0.037 -1.078 0.000
H4 0.482 2.467 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20452.77291.0052
C21.20451.57222.0309
S32.77291.57223.5724
H41.00522.03093.5724

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 174.016 C2 N1 H4 133.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.431      
2 C 0.076      
3 S 0.009      
4 H 0.345      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.233 1.792 0.000 2.176
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.654 3.277 0.000
y 3.277 -19.474 0.000
z 0.000 0.000 -25.430
Traceless
 xyz
x -2.202 3.277 0.000
y 3.277 5.568 0.000
z 0.000 0.000 -3.367
Polar
3z2-r2-6.733
x2-y2-5.180
xy3.277
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.001 -0.356 0.000
y -0.356 9.621 0.000
z 0.000 0.000 2.946


<r2> (average value of r2) Å2
<r2> 60.995
(<r2>)1/2 7.810