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

using model chemistry: mPW1PW91/6-311+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 mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-491.678266
Energy at 298.15K-491.679041
HF Energy-491.678266
Nuclear repulsion energy80.237181
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 mPW1PW91/6-311+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' 3728 3728 262.56      
2 A' 2076 2076 798.08      
3 A' 900 900 3.99      
4 A' 638 638 317.29      
5 A' 466 466 102.40      
6 A" 502 502 2.99      

Unscaled Zero Point Vibrational Energy (zpe) 4154.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4154.9 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 mPW1PW91/6-311+G(3df,2p)
ABC
36.90377 0.19805 0.19700

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.134 1.680 0.000
C2 0.000 0.491 0.000
S3 0.026 -1.072 0.000
H4 0.526 2.435 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19682.75661.0026
C21.19681.56292.0137
S32.75661.56293.5420
H41.00262.01373.5420

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 174.501 C2 N1 H4 132.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.844      
2 C 0.669      
3 S -0.031      
4 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.099 1.565 0.000 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.414 3.028 0.000
y 3.028 -19.388 0.000
z 0.000 0.000 -25.306
Traceless
 xyz
x -2.067 3.028 0.000
y 3.028 5.471 0.000
z 0.000 0.000 -3.405
Polar
3z2-r2-6.809
x2-y2-5.025
xy3.028
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.149 -0.186 0.000
y -0.186 9.682 0.000
z 0.000 0.000 4.124


<r2> (average value of r2) Å2
<r2> 60.315
(<r2>)1/2 7.766