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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-243.756411
Energy at 298.15K-243.760941
HF Energy-243.243780
Nuclear repulsion energy158.901905
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=FULL/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' 3362 3187 0.09      
2 A' 3347 3173 0.15      
3 A' 3330 3157 0.58      
4 A' 1497 1419 2.86      
5 A' 1436 1362 5.11      
6 A' 1313 1245 22.99      
7 A' 1288 1221 3.49      
8 A' 1168 1107 11.57      
9 A' 1042 988 23.06      
10 A' 1027 974 6.40      
11 A' 987 936 21.21      
12 A' 887 840 6.87      
13 A' 875 830 34.41      
14 A" 865 820 0.01      
15 A" 838 794 40.59      
16 A" 775 735 37.33      
17 A" 657 623 19.03      
18 A" 617 585 14.14      

Unscaled Zero Point Vibrational Energy (zpe) 12656.5 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 11998.4 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=FULL/3-21G*
ABC
0.31642 0.30731 0.15590

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.122 0.312 0.000
C2 0.000 1.152 0.000
N3 1.136 0.476 0.000
C4 0.768 -0.906 0.000
C5 -0.602 -1.003 0.000
H6 -0.167 2.213 0.000
H7 1.501 -1.693 0.000
H8 -1.306 -1.813 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.40142.26392.24901.41422.12743.30162.1332
C21.40141.32112.19612.23651.07443.21593.2394
N32.26391.32111.43032.28152.17062.19973.3472
C42.24902.19611.43031.37323.25591.07502.2641
C51.41422.23652.28151.37323.24482.21271.0739
H62.12741.07442.17063.25593.24484.24674.1840
H73.30163.21592.19971.07502.21274.24672.8096
H82.13323.23943.34722.26411.07394.18402.8096

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.484 O1 C2 H6 117.863
O1 C5 C4 107.569 O1 C5 H8 117.384
C2 O1 C5 105.182 C2 N3 C4 105.846
N3 C2 H6 129.653 N3 C4 C5 108.920
N3 C4 H7 122.166 C4 C5 H8 135.047
C5 C4 H7 128.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability