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

using model chemistry: B2PLYP/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 B2PLYP/TZVP
 hartrees
Energy at 0K-491.450651
Energy at 298.15K-491.451381
HF Energy-491.300479
Nuclear repulsion energy79.613623
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 B2PLYP/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' 3715 3546 274.27      
2 A' 2045 1951 669.45      
3 A' 871 831 2.94      
4 A' 618 590 365.54      
5 A' 455 435 83.41      
6 A" 479 457 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 4091.4 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3904.8 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 B2PLYP/TZVP
ABC
39.41616 0.19472 0.19377

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.148 1.691 0.000
C2 0.000 0.497 0.000
S3 0.035 -1.081 0.000
H4 0.479 2.474 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20262.77781.0033
C21.20261.57862.0340
S32.77781.57863.5827
H41.00332.03403.5827

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 174.199 C2 N1 H4 134.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.272      
2 C 0.100      
3 S -0.091      
4 H 0.263      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.192 1.805 0.000 2.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.721 3.161 0.000
y 3.161 -19.438 0.000
z 0.000 0.000 -25.419
Traceless
 xyz
x -2.292 3.161 0.000
y 3.161 5.631 0.000
z 0.000 0.000 -3.339
Polar
3z2-r2-6.678
x2-y2-5.283
xy3.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.831 -0.309 0.000
y -0.309 9.603 0.000
z 0.000 0.000 2.697


<r2> (average value of r2) Å2
<r2> 61.200
(<r2>)1/2 7.823