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All results from a given calculation for C4H5NS (4-Methylthiazole)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-45.292326
Energy at 298.15K-45.298248
HF Energy-44.472977
Nuclear repulsion energy109.236325
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/CEP-121G*
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 3273 3119 1.07      
2 A 3254 3100 0.35      
3 A 3176 3026 15.73      
4 A 3163 3014 14.09      
5 A 3071 2926 25.90      
6 A 1551 1478 11.01      
7 A 1510 1439 17.35      
8 A 1507 1435 8.56      
9 A 1445 1376 5.80      
10 A 1416 1349 43.46      
11 A 1352 1288 13.05      
12 A 1258 1199 0.85      
13 A 1178 1123 3.89      
14 A 1054 1004 0.20      
15 A 1021 973 6.09      
16 A 944 900 21.58      
17 A 913 870 23.32      
18 A 858 817 12.84      
19 A 760 725 66.39      
20 A 682 650 3.47      
21 A 680 648 1.35      
22 A 605 576 2.10      
23 A 557 531 1.79      
24 A 450 428 0.23      
25 A 327 312 2.66      
26 A 222 212 4.43      
27 A 106 101 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 18167.0 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 17309.5 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/CEP-121G*
ABC
0.24029 0.08273 0.06226

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.119 -1.698 0.000
C2 -0.658 0.020 -0.000
C3 1.359 -0.922 0.000
H4 -2.524 -0.570 -0.885
H5 -2.591 0.973 0.001
H6 -2.523 -0.570 0.885
C7 -2.165 -0.034 0.000
S8 1.801 0.763 0.000
N9 0.058 -1.168 -0.000
H10 -0.208 2.201 -0.001
C11 0.121 1.168 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 H5 H6 C7 S8 N9 H10 C11
H13.26531.08584.85975.41464.85854.59542.48142.12734.54093.4941
C23.26532.22622.14802.15532.14781.50802.56921.38782.22701.3875
C31.08582.22623.99864.38133.99753.63401.74261.32353.49482.4300
H44.85972.14803.99861.78041.77011.09504.61222.79523.71803.2865
H55.41462.15534.38131.78041.78031.09424.39743.40692.68032.7187
H64.85852.14783.99751.77011.78031.09494.61152.79433.71833.2861
C74.59541.50803.63401.09501.09421.09494.04582.49592.97092.5829
S82.48142.56921.74264.61224.39744.61154.04582.60172.47141.7289
N92.12731.38781.32352.79523.40692.79432.49592.60173.38032.3378
H104.54092.22703.49483.71802.68033.71832.97092.47143.38031.0840
C113.49411.38752.43003.28652.71873.28612.58291.72892.33781.0840

picture of 4-Methylthiazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C3 S8 120.873 H1 C3 N9 123.701
C2 C7 H4 110.211 C2 C7 H5 110.841
C2 C7 H6 110.197 C2 N9 C3 110.364
C2 C11 S8 110.578 C2 C11 H10 128.186
C3 S8 C11 88.850 H4 C7 H5 108.835
H4 C7 H6 107.857 H5 C7 H6 108.830
C7 C2 N9 119.007 C7 C2 C11 126.210
S8 C3 N9 115.426 S8 C11 H10 121.236
N9 C2 C11 114.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability