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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-491.655450
Energy at 298.15K-491.656207
HF Energy-491.655450
Nuclear repulsion energy79.974552
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 mPW1PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3741 3570 228.77      
2 A' 2095 2000 750.03      
3 A' 895 854 3.79      
4 A' 644 615 375.80      
5 A' 459 438 93.28      
6 A" 491 468 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 4162.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3972.7 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 mPW1PW91/6-311G*
ABC
37.79206 0.19664 0.19562

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.139 1.684 0.000
C2 0.000 0.495 0.000
S3 0.029 -1.076 0.000
H4 0.509 2.449 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19752.76531.0026
C21.19751.57112.0195
S32.76531.57113.5576
H41.00262.01953.5576

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 174.388 C2 N1 H4 133.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.598      
2 C 0.182      
3 S 0.040      
4 H 0.376      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.256 1.915 0.000 2.290
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.498 3.251 0.000
y 3.251 -19.063 0.000
z 0.000 0.000 -25.347
Traceless
 xyz
x -2.293 3.251 0.000
y 3.251 5.860 0.000
z 0.000 0.000 -3.566
Polar
3z2-r2-7.133
x2-y2-5.435
xy3.251
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.380 -0.211 0.000
y -0.211 8.936 0.000
z 0.000 0.000 2.234


<r2> (average value of r2) Å2
<r2> 60.601
(<r2>)1/2 7.785