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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-491.575961
Energy at 298.15K-491.576702
HF Energy-491.575961
Nuclear repulsion energy79.155327
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 B97D3/6-31G*
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' 3590 3520 145.46      
2 A' 2017 1978 543.81      
3 A' 867 850 1.85      
4 A' 718 704 349.03      
5 A' 443 434 39.73      
6 A" 466 457 2.05      

Unscaled Zero Point Vibrational Energy (zpe) 4050.3 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 3970.9 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 B97D3/6-31G*
ABC
31.76229 0.19307 0.19190

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.183 1.702 0.000
C2 0.000 0.497 0.000
S3 0.049 -1.084 0.000
H4 0.506 2.445 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.21882.79601.0131
C21.21881.58222.0119
S32.79601.58223.5582
H41.01312.01193.5582

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 173.110 C2 N1 H4 128.457
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.559      
2 C 0.253      
3 S -0.058      
4 H 0.365      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.223 1.718 0.000 2.108
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.976 3.174 0.000
y 3.174 -19.351 0.000
z 0.000 0.000 -24.791
Traceless
 xyz
x -1.904 3.174 0.000
y 3.174 5.032 0.000
z 0.000 0.000 -3.128
Polar
3z2-r2-6.256
x2-y2-4.625
xy3.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.538 -0.258 0.000
y -0.258 8.821 0.000
z 0.000 0.000 2.315


<r2> (average value of r2) Å2
<r2> 61.259
(<r2>)1/2 7.827

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-491.569694
Energy at 298.15K 
HF Energy-491.569694
Nuclear repulsion energy79.251775
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 B97D3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3874 3798 619.91      
2 Σ 2145 2103 581.94      
3 Σ 849 832 21.22      
4 Π 462 453 6.09      
4 Π 462 453 6.09      
5 Π 562i 551i 173.09      
5 Π 562i 551i 173.09      

Unscaled Zero Point Vibrational Energy (zpe) 3333.4 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 3268.1 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 B97D3/6-31G*
B
0.19069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.690
C2 0.000 0.000 -0.499
S3 0.000 0.000 1.094
H4 0.000 0.000 -2.685

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19142.78420.9951
C21.19141.59282.1864
S32.78421.59283.7793
H40.99512.18643.7793

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 B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.552      
2 C 0.291      
3 S -0.105      
4 H 0.367      


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 -3.163 3.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.713 0.000 0.000
y 0.000 -24.713 0.000
z 0.000 0.000 -15.514
Traceless
 xyz
x -4.599 0.000 0.000
y 0.000 -4.599 0.000
z 0.000 0.000 9.198
Polar
3z2-r218.397
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 2.307 0.000 0.000
y 0.000 2.307 0.000
z 0.000 0.000 8.562


<r2> (average value of r2) Å2
<r2> 61.370
(<r2>)1/2 7.834