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

using model chemistry: B3LYP/6-31G**

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/6-31G**
 hartrees
Energy at 0K-491.637503
Energy at 298.15K-491.638246
HF Energy-491.637503
Nuclear repulsion energy79.446824
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/6-31G**
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' 3698 3553 225.23      
2 A' 2069 1988 647.03      
3 A' 876 842 2.77      
4 A' 656 630 358.63      
5 A' 452 435 69.50      
6 A" 482 463 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 4116.6 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 3955.3 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/6-31G**
ABC
35.32827 0.19416 0.19310

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.151 1.696 0.000
C2 0.000 0.498 0.000
S3 0.034 -1.082 0.000
H4 0.516 2.452 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20732.78461.0076
C21.20731.58112.0201
S32.78461.58113.5665
H41.00762.02013.5665

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 174.045 C2 N1 H4 131.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.514      
2 C 0.281      
3 S -0.074      
4 H 0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.208 1.915 0.000 2.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.127 3.148 0.000
y 3.148 -19.350 0.000
z 0.000 0.000 -24.956
Traceless
 xyz
x -1.974 3.148 0.000
y 3.148 5.192 0.000
z 0.000 0.000 -3.218
Polar
3z2-r2-6.435
x2-y2-4.777
xy3.148
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.498 -0.167 0.000
y -0.167 8.771 0.000
z 0.000 0.000 2.305


<r2> (average value of r2) Å2
<r2> 61.073
(<r2>)1/2 7.815