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

using model chemistry: B1B95/cc-pVTZ

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 B1B95/cc-pVTZ
 hartrees
Energy at 0K-491.700043
Energy at 298.15K-491.700808
HF Energy-491.700043
Nuclear repulsion energy80.198928
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 B1B95/cc-pVTZ
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' 3723 3563 261.04      
2 A' 2084 1995 741.54      
3 A' 894 855 3.70      
4 A' 628 601 315.83      
5 A' 462 442 105.51      
6 A" 499 477 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 4143.8 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 3966.0 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 B1B95/cc-pVTZ
ABC
37.17554 0.19781 0.19676

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.134 1.681 0.000
C2 0.000 0.493 0.000
S3 0.026 -1.072 0.000
H4 0.523 2.436 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.19522.75781.0011
C21.19521.56582.0118
S32.75781.56583.5433
H41.00112.01183.5433

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 174.501 C2 N1 H4 132.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.157      
2 C 0.078      
3 S -0.138      
4 H 0.217      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.112 1.721 0.000 2.049
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.162 2.965 0.000
y 2.965 -19.104 0.000
z 0.000 0.000 -25.003
Traceless
 xyz
x -2.109 2.965 0.000
y 2.965 5.479 0.000
z 0.000 0.000 -3.370
Polar
3z2-r2-6.741
x2-y2-5.059
xy2.965
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.202 -0.142 0.000
y -0.142 9.103 0.000
z 0.000 0.000 3.077


<r2> (average value of r2) Å2
<r2> 60.192
(<r2>)1/2 7.758

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at B1B95/cc-pVTZ
 hartrees
Energy at 0K-491.696746
Energy at 298.15K 
HF Energy-491.696746
Nuclear repulsion energy80.216427
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 B1B95/cc-pVTZ
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 3926 3757 712.76      
2 Σ 2192 2098 759.07      
3 Σ 872 835 30.43      
4 Π 495 473 5.95      
4 Π 495 473 5.95      
5 Π 437i 418i 146.90      
5 Π 437i 418i 146.90      

Unscaled Zero Point Vibrational Energy (zpe) 3552.9 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 3400.5 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 B1B95/cc-pVTZ
B
0.19537

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.668
C2 0.000 0.000 -0.495
S3 0.000 0.000 1.081
H4 0.000 0.000 -2.655

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.17242.74930.9875
C21.17241.57702.1599
S32.74931.57703.7368
H40.98752.15993.7368

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 B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.142      
2 C 0.093      
3 S -0.196      
4 H 0.244      


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 -3.052 3.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.974 0.000 0.000
y 0.000 -24.974 0.000
z 0.000 0.000 -15.736
Traceless
 xyz
x -4.619 0.000 0.000
y 0.000 -4.619 0.000
z 0.000 0.000 9.238
Polar
3z2-r218.476
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 3.058 0.000 0.000
y 0.000 3.058 0.000
z 0.000 0.000 8.912


<r2> (average value of r2) Å2
<r2> 60.384
(<r2>)1/2 7.771