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

using model chemistry: B3PW91/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-491.572543
Energy at 298.15K-491.573303
HF Energy-491.572543
Nuclear repulsion energy79.392775
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/cc-pVDZ
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' 3664 3536 222.46      
2 A' 2070 1997 634.66      
3 A' 889 858 1.47      
4 A' 671 648 317.96      
5 A' 450 434 68.55      
6 A" 483 466 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 4113.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3969.5 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/cc-pVDZ
ABC
32.14312 0.19419 0.19303

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.153 1.699 0.000
C2 0.000 0.498 0.000
S3 0.032 -1.082 0.000
H4 0.551 2.428 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21022.78701.0134
C21.21021.58062.0070
S32.78701.58063.5483
H41.01342.00703.5483

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 173.929 C2 N1 H4 128.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.190      
2 C 0.105      
3 S -0.075      
4 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.190 1.729 0.000 2.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.966 3.073 0.000
y 3.073 -19.157 0.000
z 0.000 0.000 -24.851
Traceless
 xyz
x -1.962 3.073 0.000
y 3.073 5.251 0.000
z 0.000 0.000 -3.289
Polar
3z2-r2-6.578
x2-y2-4.809
xy3.073
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.429 -0.132 0.000
y -0.132 8.617 0.000
z 0.000 0.000 2.235


<r2> (average value of r2) Å2
<r2> 60.957
(<r2>)1/2 7.807