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

using model chemistry: B2PLYP/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 B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-491.490362
Energy at 298.15K-491.491127
HF Energy-491.314364
Nuclear repulsion energy79.857833
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 B2PLYP/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' 3702 3702 256.12      
2 A' 2025 2025 725.42      
3 A' 881 881 2.25      
4 A' 649 649 355.36      
5 A' 463 463 77.61      
6 A" 491 491 5.20      

Unscaled Zero Point Vibrational Energy (zpe) 4105.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4105.4 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 B2PLYP/6-311+G(3df,2p)
ABC
36.68417 0.19617 0.19513

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.157 1.687 0.000
C2 0.000 0.493 0.000
S3 0.038 -1.076 0.000
H4 0.491 2.454 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.20452.77001.0040
C21.20451.56942.0214
S32.77001.56943.5587
H41.00402.02143.5587

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 173.889 C2 N1 H4 132.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.770      
2 C 0.561      
3 S -0.023      
4 H 0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.068 1.572 0.000 1.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.798 2.959 0.000
y 2.959 -19.557 0.000
z 0.000 0.000 -25.603
Traceless
 xyz
x -2.218 2.959 0.000
y 2.959 5.643 0.000
z 0.000 0.000 -3.425
Polar
3z2-r2-6.851
x2-y2-5.241
xy2.959
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.189 -0.283 0.000
y -0.283 10.076 0.000
z 0.000 0.000 4.154


<r2> (average value of r2) Å2
<r2> 60.930
(<r2>)1/2 7.806