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

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-485.996212
Energy at 298.15K-485.996870
HF Energy-485.996212
Nuclear repulsion energy78.522031
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 B3LYP/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' 3588 3202 33.98      
2 A' 2097 1872 236.64      
3 A' 922 823 1.46      
4 A' 855 763 286.81      
5 A' 429 383 19.35      
6 A" 454 405 3.61      

Unscaled Zero Point Vibrational Energy (zpe) 4172.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 3723.5 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 B3LYP/STO-3G
ABC
22.10573 0.19168 0.19003

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.334 1.701 0.000
C2 0.000 0.485 0.000
S3 0.120 -1.079 0.000
H4 0.418 2.446 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.26162.81731.0579
C21.26161.56852.0049
S32.81731.56853.5373
H41.05792.00493.5373

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 169.036 C2 N1 H4 119.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.314      
2 C -0.044      
3 S 0.151      
4 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.290 0.323 0.000 1.330
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.217 3.062 0.000
y 3.062 -19.528 0.000
z 0.000 0.000 -21.520
Traceless
 xyz
x -0.694 3.062 0.000
y 3.062 1.841 0.000
z 0.000 0.000 -1.147
Polar
3z2-r2-2.294
x2-y2-1.690
xy3.062
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.929 -0.308 0.000
y -0.308 5.711 0.000
z 0.000 0.000 0.553


<r2> (average value of r2) Å2
<r2> 60.434
(<r2>)1/2 7.774