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

using model chemistry: BLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-491.677561
Energy at 298.15K-491.678300
HF Energy-491.677561
Nuclear repulsion energy79.214398
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 BLYP/aug-cc-pVTZ
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' 3556 3544 178.06      
2 A' 1965 1958 638.07      
3 A' 846 843 0.92      
4 A' 676 674 324.49      
5 A' 447 445 45.03      
6 A" 467 466 5.89      

Unscaled Zero Point Vibrational Energy (zpe) 3978.6 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 3965.1 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 BLYP/aug-cc-pVTZ
ABC
34.16214 0.19315 0.19207

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.168 1.700 0.000
C2 0.000 0.499 0.000
S3 0.042 -1.085 0.000
H4 0.502 2.460 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21322.79271.0125
C21.21321.58382.0243
S32.79271.58383.5740
H41.01252.02433.5740

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 173.575 C2 N1 H4 130.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.118      
2 C -0.126      
3 S 0.058      
4 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.044 1.454 0.000 1.790
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.789 2.928 0.000
y 2.928 -19.978 0.000
z 0.000 0.000 -25.585
Traceless
 xyz
x -2.007 2.928 0.000
y 2.928 5.208 0.000
z 0.000 0.000 -3.201
Polar
3z2-r2-6.402
x2-y2-4.811
xy2.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.592 -0.239 0.000
y -0.239 10.269 0.000
z 0.000 0.000 4.554


<r2> (average value of r2) Å2
<r2> 61.722
(<r2>)1/2 7.856