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

using model chemistry: BLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-485.935290
Energy at 298.15K-485.935907
HF Energy-485.935290
Nuclear repulsion energy77.684523
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/STO-3G
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' 3427 3171 11.13      
2 A' 2000 1851 169.43      
3 A' 884 818 29.25      
4 A' 871 806 211.35      
5 A' 410 379 15.43      
6 A" 435 402 6.87      

Unscaled Zero Point Vibrational Energy (zpe) 4013.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 3713.0 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 BLYP/STO-3G
ABC
20.36613 0.18793 0.18621

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.388 1.709 0.000
C2 0.000 0.490 0.000
S3 0.147 -1.086 0.000
H4 0.363 2.472 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.27942.84661.0703
C21.27941.58362.0148
S32.84661.58363.5651
H41.07032.01483.5651

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 167.669 C2 N1 H4 117.793
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.295      
2 C -0.065      
3 S 0.162      
4 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.237 0.190 0.000 1.251
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.358 2.898 0.000
y 2.898 -19.222 0.000
z 0.000 0.000 -21.535
Traceless
 xyz
x -0.980 2.898 0.000
y 2.898 2.224 0.000
z 0.000 0.000 -1.245
Polar
3z2-r2-2.490
x2-y2-2.136
xy2.898
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.989 -0.413 0.000
y -0.413 5.758 0.000
z 0.000 0.000 0.575


<r2> (average value of r2) Å2
<r2> 61.357
(<r2>)1/2 7.833