return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for HSCN (thiocyanic acid)

using model chemistry: B2PLYP=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-491.532931
Energy at 298.15K-491.533549
HF Energy-491.299132
Nuclear repulsion energy78.820019
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 B2PLYP=FULL/6-311+G(3df,2p)
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' 2701 2701 5.78      
2 A' 2215 2215 10.25      
3 A' 989 989 8.33      
4 A' 705 705 0.32      
5 A' 339 339 3.74      
6 A" 402 402 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 3674.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3674.7 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 B2PLYP=FULL/6-311+G(3df,2p)
ABC
9.71446 0.19373 0.18995

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.069 -0.998 0.000
C2 0.000 0.692 0.000
N3 -0.023 1.853 0.000
H4 1.261 -1.166 0.000

Atom - Atom Distances (Å)
  S1 C2 N3 H4
S11.69132.85131.3407
C21.69131.16122.2460
N32.85131.16123.2812
H41.34072.24603.2812

picture of thiocyanic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 N3 176.531 C2 S1 H4 94.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability