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

using model chemistry: MP2/CEP-31G*

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-31G*
 hartrees
Energy at 0K-45.227042
Energy at 298.15K-45.233073
HF Energy-44.459317
Nuclear repulsion energy108.664812
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-31G*
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 3281 3115 1.18      
2 A 3261 3096 0.64      
3 A 3197 3036 18.01      
4 A 3186 3025 16.78      
5 A 3092 2935 27.62      
6 A 1566 1487 12.87      
7 A 1508 1432 13.49      
8 A 1498 1423 8.48      
9 A 1445 1372 12.81      
10 A 1425 1353 42.48      
11 A 1369 1300 10.58      
12 A 1258 1194 0.94      
13 A 1180 1120 2.93      
14 A 1074 1020 2.49      
15 A 1026 974 6.72      
16 A 947 899 21.03      
17 A 913 867 22.00      
18 A 861 817 13.53      
19 A 796 756 69.26      
20 A 712 676 2.64      
21 A 682 647 1.18      
22 A 637 605 0.01      
23 A 556 528 1.72      
24 A 479 455 1.86      
25 A 324 307 2.67      
26 A 235 223 5.65      
27 A 133 126 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 18320.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17393.4 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/CEP-31G*
ABC
0.23757 0.08200 0.06168

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.132 -1.703 0.000
C2 0.659 0.012 0.000
C3 -1.365 -0.924 0.000
H4 2.542 -0.570 0.893
H5 2.597 0.987 -0.001
H6 2.542 -0.571 -0.893
C7 2.177 -0.033 -0.000
S8 -1.808 0.767 -0.000
N9 -0.060 -1.177 0.000
H10 0.211 2.216 0.000
C11 -0.124 1.177 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 H4 H5 H6 C7 S8 N9 H10 C11
H13.27571.09324.89125.44014.89074.62042.49092.13704.56553.5106
C23.27572.23012.16332.16912.16331.51782.57991.38992.24901.4044
C31.09322.23014.02344.39864.02313.65191.74721.32943.51272.4397
H44.89122.16334.02341.79561.78551.10424.63722.81743.74023.3104
H55.44012.16914.39861.79561.79561.10304.41023.42702.68392.7282
H64.89072.16334.02311.78551.79561.10414.63702.81693.74073.3108
C74.62041.51783.65191.10421.10301.10414.06362.51242.98652.5998
S82.49092.57991.74724.63724.41024.63704.06362.61392.48491.7325
N92.13701.38991.32942.81743.42702.81692.51242.61393.40382.3554
H104.56552.24903.51273.74022.68393.74072.98652.48493.40381.0913
C113.51061.40442.43973.31042.72823.31082.59981.73252.35541.0913

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 120.813 H1 C3 N9 123.511
C2 C7 H4 110.189 C2 C7 H5 110.719
C2 C7 H6 110.191 C2 N9 C3 110.174
C2 C11 S8 110.219 C2 C11 H10 128.170
C3 S8 C11 89.035 H4 C7 H5 108.887
H4 C7 H6 107.907 H5 C7 H6 108.883
C7 C2 N9 119.487 C7 C2 C11 125.617
S8 C3 N9 115.675 S8 C11 H10 121.611
N9 C2 C11 114.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability