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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD(T)/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-245.437408
Energy at 298.15K-245.441989
HF Energy-244.647787
Nuclear repulsion energy161.752877
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 CCSD(T)/cc-pVDZ
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' 3313 3242        
2 A' 3291 3221        
3 A' 3277 3207        
4 A' 1578 1545        
5 A' 1545 1512        
6 A' 1354 1326        
7 A' 1266 1239        
8 A' 1172 1147        
9 A' 1119 1095        
10 A' 1100 1077        
11 A' 1072 1049        
12 A' 916 896        
13 A' 905 886        
14 A" 849 831        
15 A" 831 814        
16 A" 748 732        
17 A" 652 638        
18 A" 612 599        

Unscaled Zero Point Vibrational Energy (zpe) 12799.1 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 12527.8 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 CCSD(T)/cc-pVDZ
ABC
0.33275 0.31477 0.16175

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.113 0.315 0.000
C2 0.000 1.102 0.000
N3 1.142 0.468 0.000
C4 0.760 -0.885 0.000
C5 -0.608 -0.967 0.000
H6 -0.167 2.180 0.000
H7 1.495 -1.691 0.000
H8 -1.333 -1.780 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36342.26022.22421.37752.09193.29032.1063
C21.36341.30652.12802.15681.09113.16863.1756
N32.26021.30651.40622.26332.15562.18793.3435
C42.22422.12801.40621.37043.20291.09102.2760
C51.37752.15682.26331.37043.17832.22461.0892
H62.09191.09112.15563.20293.17834.21354.1287
H73.29033.16862.18791.09102.22464.21352.8295
H82.10633.17563.34352.27601.08924.12872.8295

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.661 O1 C2 H6 116.489
O1 C5 C4 108.077 O1 C5 H8 116.795
C2 O1 C5 103.795 C2 N3 C4 103.275
N3 C2 H6 127.850 N3 C4 C5 109.191
N3 C4 H7 121.845 C4 C5 H8 135.127
C5 C4 H7 128.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability