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

using model chemistry: BLYP/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 BLYP/TZVP
 hartrees
Energy at 0K-491.660864
Energy at 298.15K-491.661578
HF Energy-491.660864
Nuclear repulsion energy79.057114
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/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' 3574 3565 195.66      
2 A' 1985 1980 588.65      
3 A' 842 840 1.43      
4 A' 644 642 331.05      
5 A' 443 442 52.06      
6 A" 466 465 5.08      

Unscaled Zero Point Vibrational Energy (zpe) 3976.2 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 3966.3 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/TZVP
ABC
36.64962 0.19218 0.19117

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.162 1.702 0.000
C2 0.000 0.501 0.000
S3 0.041 -1.088 0.000
H4 0.484 2.483 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21222.79731.0126
C21.21221.58922.0398
S32.79731.58923.5976
H41.01262.03983.5976

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 173.793 C2 N1 H4 132.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.268      
2 C 0.086      
3 S -0.071      
4 H 0.252      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.180 1.641 0.000 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.706 3.140 0.000
y 3.140 -19.629 0.000
z 0.000 0.000 -25.414
Traceless
 xyz
x -2.185 3.140 0.000
y 3.140 5.431 0.000
z 0.000 0.000 -3.247
Polar
3z2-r2-6.493
x2-y2-5.077
xy3.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.922 -0.301 0.000
y -0.301 9.610 0.000
z 0.000 0.000 2.778


<r2> (average value of r2) Å2
<r2> 61.848
(<r2>)1/2 7.864