return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-311+G(3df,2p)
 hartrees
Energy at 0K-491.645233
Energy at 298.15K-491.645982
HF Energy-491.645233
Nuclear repulsion energy 
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 wB97X-D/6-311+G(3df,2p)
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' 3738 3738 287.23      
2 A' 2072 2072 880.86      
3 A' 891 891 6.23      
4 A' 611 611 299.61      
5 A' 456 456 147.10      
6 A" 502 502 2.57      

Unscaled Zero Point Vibrational Energy (zpe) 4134.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4134.8 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 wB97X-D/6-311+G(3df,2p)
ABC
37.87751 0.19780 0.19677

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.131 1.680 0.000
C2 0.000 0.493 0.000
S3 0.025 -1.073 0.000
H4 0.522 2.441 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19482.75731.0025
C21.19481.56552.0174
S32.75731.56553.5491
H41.00252.01743.5491

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 174.622 C2 N1 H4 133.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.765      
2 C 0.558      
3 S -0.022      
4 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.102 1.671 0.000 2.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.440 3.043 0.000
y 3.043 -19.255 0.000
z 0.000 0.000 -25.320
Traceless
 xyz
x -2.152 3.043 0.000
y 3.043 5.625 0.000
z 0.000 0.000 -3.472
Polar
3z2-r2-6.945
x2-y2-5.185
xy3.043
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.171 -0.193 0.000
y -0.193 9.736 0.000
z 0.000 0.000 4.147


<r2> (average value of r2) Å2
<r2> 60.359
(<r2>)1/2 7.769