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 NH2CSNH2 (Thiourea)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-544.369364
Energy at 298.15K-544.375107
HF Energy-543.951651
Nuclear repulsion energy156.285930
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3695 3515 28.22      
2 A1 3554 3381 33.67      
3 A1 1743 1658 70.22      
4 A1 1437 1367 359.17      
5 A1 1073 1020 101.52      
6 A1 771 734 16.13      
7 A1 472 449 1.52      
8 A2 517 492 0.00      
9 A2 214 203 0.00      
10 B1 666 633 60.21      
11 B1 639 608 130.23      
12 B1 444 422 540.04      
13 B2 3693 3513 75.20      
14 B2 3545 3372 88.88      
15 B2 1705 1622 174.34      
16 B2 1458 1387 183.79      
17 B2 1067 1015 14.81      
18 B2 413 393 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 13551.8 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 12891.9 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 MP2/3-21G*
ABC
0.34644 0.16864 0.11343

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.318
S2 0.000 0.000 1.361
N3 0.000 1.158 -1.048
N4 0.000 -1.158 -1.048
H5 0.000 2.033 -0.540
H6 0.000 1.175 -2.061
H7 0.000 -2.033 -0.540
H8 0.000 -1.175 -2.061

Atom - Atom Distances (Å)
  C1 S2 N3 N4 H5 H6 H7 H8
C11.67881.36861.36862.04512.10192.04512.1019
S21.67882.67232.67232.78353.61772.78353.6177
N31.36862.67232.31581.01141.01333.23092.5433
N41.36862.67232.31583.23092.54331.01141.0133
H52.04512.78351.01143.23091.74574.06583.5499
H62.10193.61771.01332.54331.74573.54992.3499
H72.04512.78353.23091.01144.06583.54991.7457
H82.10193.61772.54331.01333.54992.34991.7457

picture of Thiourea state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 117.686 C1 N3 H6 123.183
C1 N4 H7 117.686 C1 N4 H8 123.183
S2 C1 N3 122.218 S2 C1 N4 122.218
N3 C1 N4 115.565 H5 N3 H6 119.131
H7 N4 H8 119.131
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability