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All results from a given calculation for C3H3NO (Oxazole)

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 CS 1A'
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-44.235679
Energy at 298.15K-44.240219
HF Energy-43.550807
Nuclear repulsion energy83.280336
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' 3330 3162 1.25      
2 A' 3319 3151 0.61      
3 A' 3295 3128 2.32      
4 A' 1554 1475 4.16      
5 A' 1516 1440 37.83      
6 A' 1360 1292 3.69      
7 A' 1267 1203 1.58      
8 A' 1191 1130 42.27      
9 A' 1141 1084 3.60      
10 A' 1108 1052 0.93      
11 A' 1082 1028 47.42      
12 A' 899 854 18.03      
13 A' 892 847 13.40      
14 A" 832 790 8.25      
15 A" 813 772 59.82      
16 A" 737 700 35.64      
17 A" 659 626 20.76      
18 A" 616 585 2.66      

Unscaled Zero Point Vibrational Energy (zpe) 12806.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 12158.5 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-31G*
ABC
0.33101 0.30986 0.16004

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.122 0.317 0.000
C2 0.000 1.105 0.000
N3 1.151 0.464 0.000
C4 0.774 -0.887 0.000
C5 -0.619 -0.969 0.000
H6 -0.172 2.182 0.000
H7 1.513 -1.688 0.000
H8 -1.351 -1.775 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.37142.27772.24561.38062.09353.31072.1036
C21.37141.31722.13672.16431.09043.17643.1806
N32.27771.31721.40232.27722.16772.18243.3570
C42.24562.13671.40231.39523.21081.09002.3028
C51.38062.16432.27721.39523.18242.24951.0884
H62.09351.09042.16773.21083.18244.22054.1283
H73.31073.17642.18241.09002.24954.22052.8647
H82.10363.18063.35702.30281.08844.12832.8647

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.797 O1 C2 H6 116.038
O1 C5 C4 107.996 O1 C5 H8 116.363
C2 O1 C5 103.709 C2 N3 C4 103.523
N3 C2 H6 128.165 N3 C4 C5 108.975
N3 C4 H7 121.745 C4 C5 H8 135.641
C5 C4 H7 129.280
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability