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 C3H3NS (Thiazole)

using model chemistry: QCISD(T)/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/TZVP
 hartrees
Energy at 0K-568.141498
Energy at 298.15K 
HF Energy-567.358428
Nuclear repulsion energy203.604137
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(T)/TZVP
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' 3280 3159        
2 A' 3246 3127        
3 A' 3243 3124        
4 A' 1526 1470        
5 A' 1437 1384        
6 A' 1357 1307        
7 A' 1285 1238        
8 A' 1156 1113        
9 A' 1063 1024        
10 A' 891 858        
11 A' 867 835        
12 A' 745 718        
13 A' 610 588        
14 A" 755 727        
15 A" 750 722        
16 A" 655 631        
17 A" 523 503        
18 A" 419 404        

Unscaled Zero Point Vibrational Energy (zpe) 11903.9 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 11465.8 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(T)/TZVP
ABC
0.28240 0.17922 0.10964

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.200 0.000
C2 -1.203 -0.075 0.000
C3 1.225 -0.036 0.000
N4 -0.742 -1.295 0.000
C5 0.644 -1.272 0.000
H6 -2.256 0.169 0.000
H7 2.274 0.214 0.000
H8 1.180 -2.211 0.000

Atom - Atom Distances (Å)
  S1 C2 C3 N4 C5 H6 H7 H8
S11.75251.74022.60282.55462.48082.47883.6095
C21.75252.42771.30402.20071.08163.48913.2000
C31.74022.42772.33521.36563.48721.07922.1754
N42.60281.30402.33521.38632.10603.37322.1294
C52.55462.20071.36561.38633.23852.20651.0813
H62.48081.08163.48722.10603.23854.53114.1801
H72.47883.48911.07923.37322.20654.53112.6612
H83.60953.20002.17542.12941.08134.18012.6612

picture of Thiazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 N4 115.996 S1 C2 H6 120.308
S1 C3 C5 110.092 S1 C3 H7 121.298
C2 S1 C3 88.064 C2 N4 C5 109.736
C3 C5 N4 116.112 C3 C5 H8 125.107
N4 C2 H6 123.696 N4 C5 H8 118.781
C5 C3 H7 128.610
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability