return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHSNH2 (thioformamide)

using model chemistry: CCSD(T)/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G(2df,p)
 hartrees
Energy at 0K-492.151760
Energy at 298.15K-492.155412
HF Energy-491.587346
Nuclear repulsion energy94.461711
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 CCSD(T)/6-31G(2df,p)
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' 3763 3763        
2 A' 3620 3620        
3 A' 3142 3142        
4 A' 1649 1649        
5 A' 1481 1481        
6 A' 1329 1329        
7 A' 1144 1144        
8 A' 890 890        
9 A' 434 434        
10 A" 977 977        
11 A" 633 633        
12 A" 304 304        

Unscaled Zero Point Vibrational Energy (zpe) 9682.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9682.6 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 CCSD(T)/6-31G(2df,p)
ABC
2.07489 0.20165 0.18379

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.642 0.000
S2 -0.778 -0.807 0.000
N3 1.332 0.818 0.000
H4 -0.549 1.586 0.000
H5 1.935 0.010 0.000
H6 1.743 1.735 0.000

Atom - Atom Distances (Å)
  C1 S2 N3 H4 H5 H6
C11.64481.34371.09202.03602.0576
S21.64482.66332.40392.83423.5805
N31.34372.66332.03221.00781.0054
H41.09202.40392.03222.94212.2972
H52.03602.83421.00782.94211.7355
H62.05763.58051.00542.29721.7355

picture of thioformamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.266 C1 N3 H6 121.636
S2 C1 N3 125.750 S2 C1 H4 121.570
H5 N3 H6 119.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability