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

using model chemistry: MP2/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-490.869298
Energy at 298.15K-490.870051
HF Energy-490.426620
Nuclear repulsion energy78.798869
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 MP2/aug-cc-pVDZ
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' 3681 3530 255.71      
2 A' 2006 1923 716.88      
3 A' 886 849 0.71      
4 A' 660 633 409.01      
5 A' 450 432 67.57      
6 A" 477 458 9.75      

Unscaled Zero Point Vibrational Energy (zpe) 4079.7 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 3912.4 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 MP2/aug-cc-pVDZ
ABC
33.64838 0.19116 0.19008

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.203 1.707 0.000
C2 0.000 0.498 0.000
S3 0.061 -1.089 0.000
H4 0.448 2.483 0.000

Atom - Atom Distances (Å)
  N1 C2 S3 H4
N11.22592.80821.0133
C21.22591.58802.0349
S32.80821.58803.5927
H41.01332.03493.5927

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 172.651 C2 N1 H4 130.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability