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All results from a given calculation for CH3CSNH2 (Ethanethioamide)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-528.307976
Energy at 298.15K 
HF Energy-527.927220
Nuclear repulsion energy151.787649
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 QCISD/3-21G
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 3618 3507 34.23      
2 A 3492 3385 84.61      
3 A 3161 3063 1.34      
4 A 3076 2981 12.92      
5 A 3023 2930 12.81      
6 A 1719 1667 123.35      
7 A 1567 1518 10.36      
8 A 1558 1510 6.95      
9 A 1465 1420 10.44      
10 A 1413 1369 278.67      
11 A 1345 1304 36.73      
12 A 1088 1055 1.62      
13 A 1067 1034 18.71      
14 A 967 937 28.99      
15 A 697 675 153.31      
16 A 669 648 12.44      
17 A 546 529 112.00      
18 A 502 487 42.18      
19 A 427 414 1.79      
20 A 370 358 2.47      
21 A 54 53 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 15911.7 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 15421.6 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 QCISD/3-21G
ABC
0.31736 0.15594 0.10669

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.067 0.000
S2 -1.410 -0.112 0.000
C3 1.261 -1.129 -0.000
N4 0.911 1.275 0.000
H5 0.683 -2.056 0.000
H6 1.903 -1.100 -0.894
H7 1.904 -1.099 0.894
H8 1.922 1.375 0.000
H9 0.337 2.114 -0.000

Atom - Atom Distances (Å)
  C1 S2 C3 N4 H5 H6 H7 H8 H9
C11.72881.52791.34922.15522.16762.16762.07632.0477
S21.72882.85782.70312.85623.57063.57093.64862.8296
C31.52792.85782.42911.09261.10121.10122.58963.3723
N41.34922.70312.42913.33852.72452.72431.01661.0168
H52.15522.85621.09263.33851.78971.78973.64784.1845
H62.16763.57061.10122.72451.78971.78812.63133.6854
H72.16763.57091.10122.72431.78971.78812.63093.6853
H82.07633.64862.58961.01663.64782.63132.63091.7493
H92.04772.82963.37231.01684.18453.68543.68531.7493

picture of Ethanethioamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H5 109.541 C1 C3 H6 110.014
C1 C3 H7 110.016 C1 N4 H8 122.091
C1 N4 H9 119.209 S2 C1 C3 122.573
S2 C1 N4 122.374 C3 C1 N4 115.053
H5 C3 H6 109.341 H5 C3 H7 109.340
H6 C3 H7 108.568 H8 N4 H9 118.700
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability