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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-243.758622
Energy at 298.15K-243.763184
HF Energy-243.245983
Nuclear repulsion energy159.477230
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 CCD/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 A' 3325 3180 0.13      
2 A' 3309 3165 0.10      
3 A' 3292 3149 0.58      
4 A' 1545 1478 1.87      
5 A' 1494 1429 15.92      
6 A' 1343 1285 15.97      
7 A' 1290 1234 0.23      
8 A' 1174 1123 15.14      
9 A' 1072 1025 31.60      
10 A' 1038 993 14.96      
11 A' 998 955 12.88      
12 A' 904 865 4.64      
13 A' 893 854 40.76      
14 A" 887 849 0.49      
15 A" 857 820 23.96      
16 A" 786 752 38.83      
17 A" 654 626 22.60      
18 A" 609 582 18.23      

Unscaled Zero Point Vibrational Energy (zpe) 12734.6 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 12180.6 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 CCD/3-21G*
ABC
0.31757 0.31077 0.15707

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.114 0.311 0.000
C2 0.000 1.152 0.000
N3 1.127 0.479 0.000
C4 0.764 -0.906 0.000
C5 -0.600 -1.003 0.000
H6 -0.165 2.216 0.000
H7 1.501 -1.694 0.000
H8 -1.305 -1.816 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.39542.24692.23781.41042.12893.29422.1354
C21.39541.31252.19502.23611.07743.21683.2421
N32.24691.31251.43152.27502.16502.20443.3440
C42.23782.19501.43151.36743.25761.07812.2610
C51.41042.23612.27501.36743.24822.21091.0769
H62.12891.07742.16503.25763.24824.24994.1907
H73.29423.21682.20441.07812.21094.24992.8084
H82.13543.24213.34402.26101.07694.19072.8084

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.106 O1 C2 H6 118.273
O1 C5 C4 107.323 O1 C5 H8 117.682
C2 O1 C5 105.681 C2 N3 C4 106.168
N3 C2 H6 129.621 N3 C4 C5 108.721
N3 C4 H7 122.275 C4 C5 H8 134.995
C5 C4 H7 129.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability