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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-491.559523
Energy at 298.15K-491.560293
HF Energy-491.559523
Nuclear repulsion energy79.934239
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 B3PW91/6-31G(2df,p)
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' 3726 3583 254.90      
2 A' 2090 2010 661.14      
3 A' 890 855 3.68      
4 A' 639 614 322.37      
5 A' 467 449 100.98      
6 A" 503 484 1.59      

Unscaled Zero Point Vibrational Energy (zpe) 4157.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 3996.8 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 B3PW91/6-31G(2df,p)
ABC
36.69017 0.19655 0.19550

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.149 1.686 0.000
C2 0.000 0.493 0.000
S3 0.033 -1.075 0.000
H4 0.505 2.448 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20182.76721.0041
C21.20181.56902.0190
S32.76721.56903.5548
H41.00412.01903.5548

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 174.121 C2 N1 H4 132.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.530      
2 C 0.400      
3 S -0.200      
4 H 0.330      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.094 1.824 0.000 2.127
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.014 2.954 0.000
y 2.954 -18.861 0.000
z 0.000 0.000 -24.816
Traceless
 xyz
x -2.175 2.954 0.000
y 2.954 5.554 0.000
z 0.000 0.000 -3.378
Polar
3z2-r2-6.756
x2-y2-5.153
xy2.954
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.098 -0.150 0.000
y -0.150 8.823 0.000
z 0.000 0.000 2.981


<r2> (average value of r2) Å2
<r2> 60.369
(<r2>)1/2 7.770