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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C*V 1Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-489.213348
Energy at 298.15K-489.213700
HF Energy-489.213348
Nuclear repulsion energy 
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 wB97X-D/3-21G*
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' 3892 3689 740.81      
2 A' 2236 2120 553.15      
3 A' 853 808 36.83      
4 A' 534 507 3.09      
5 A' 231 219 239.94      
6 A" 408 387 97.36      

Unscaled Zero Point Vibrational Energy (zpe) 4076.9 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 3864.1 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 wB97X-D/3-21G*
B
0.19288

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.000 1.678 0.000
C2 0.000 0.500 0.000
S3 0.000 -1.089 0.000
H4 -0.000 2.670 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.17802.76680.9921
C21.17801.58882.1701
S32.76681.58883.7589
H40.99212.17013.7589

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 179.993 C2 N1 H4 179.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.783      
2 C 0.391      
3 S -0.008      
4 H 0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 3.661 0.000 3.661
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.067 0.000 0.000
y 0.000 -15.581 0.000
z 0.000 0.000 -25.067
Traceless
 xyz
x -4.743 0.000 0.000
y 0.000 9.486 0.000
z 0.000 0.000 -4.743
Polar
3z2-r2-9.486
x2-y2-9.486
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.894 -0.001 0.000
y -0.001 7.985 0.000
z 0.000 0.000 1.894


<r2> (average value of r2) Å2
<r2> 60.987
(<r2>)1/2 7.809

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-489.213348
Energy at 298.15K-489.213735
HF Energy-489.213348
Nuclear repulsion energy 
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 wB97X-D/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3891 3688 740.96      
2 Σ 2237 2120 553.08      
3 Σ 853 809 36.83      
4 Π 534 506 3.07      
4 Π 534 506 3.07      
5 Π 233 221 239.95      
5 Π 233 221 239.95      

Unscaled Zero Point Vibrational Energy (zpe) 4257.5 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 4035.3 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 wB97X-D/3-21G*
B
0.19290

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.678
C2 0.000 0.000 -0.500
S3 0.000 0.000 1.089
H4 0.000 0.000 -2.670

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.17792.76660.9922
C21.17791.58872.1701
S32.76661.58873.7588
H40.99222.17013.7588

picture of Isothiocyanic acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 S3 180.000 C2 N1 H4 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.783      
2 C 0.391      
3 S -0.008      
4 H 0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.662 3.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.067 0.000 0.000
y 0.000 -25.067 0.000
z 0.000 0.000 -15.581
Traceless
 xyz
x -4.743 0.000 0.000
y 0.000 -4.743 0.000
z 0.000 0.000 9.486
Polar
3z2-r218.972
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.894 0.000 0.000
y 0.000 1.894 0.000
z 0.000 0.000 7.984


<r2> (average value of r2) Å2
<r2> 60.983
(<r2>)1/2 7.809