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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP2/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-245.639836
Energy at 298.15K-245.644453
HF Energy-244.721455
Nuclear repulsion energy163.228172
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/aug-cc-pVTZ
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' 3331 3174 0.37      
2 A' 3312 3156 1.47      
3 A' 3300 3144 2.46      
4 A' 1546 1473 5.69      
5 A' 1508 1437 33.92      
6 A' 1355 1292 4.04      
7 A' 1272 1212 0.77      
8 A' 1186 1130 33.59      
9 A' 1141 1088 6.30      
10 A' 1110 1057 3.11      
11 A' 1086 1035 39.53      
12 A' 915 872 21.40      
13 A' 905 862 9.36      
14 A" 863 823 2.36      
15 A" 827 788 33.82      
16 A" 763 727 28.64      
17 A" 665 633 23.81      
18 A" 628 598 2.92      

Unscaled Zero Point Vibrational Energy (zpe) 12855.4 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 12249.9 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/aug-cc-pVTZ
ABC
0.33783 0.32144 0.16472

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.102 0.311 0.000
N2 1.129 0.458 0.000
C3 0.754 -0.878 0.000
H4 1.479 -1.672 0.000
C5 0.000 1.102 0.000
H6 -0.168 2.164 0.000
C7 -0.601 -0.961 0.000
H8 -1.318 -1.761 0.000

Atom - Atom Distances (Å)
  O1 N2 C3 H4 C5 H6 C7 H8
O12.23512.20413.25441.35622.07511.36712.0828
N22.23511.38802.15901.29922.14262.23793.3031
C32.20411.38801.07492.11883.17901.35802.2524
H43.25442.15901.07493.14354.17472.19832.7986
C51.35621.29922.11883.14351.07542.14913.1514
H62.07512.14263.17904.17471.07543.15534.0897
C71.36712.23791.35802.19832.14913.15531.0736
H82.08283.30312.25242.79863.15144.08971.0736

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 70.566 O1 C2 H6 56.541
O1 C5 C4 82.388 O1 C5 H8 29.595
C2 O1 C5 31.895 C2 N3 C4 121.950
N3 C2 H6 127.107 N3 C4 C5 14.334
N3 C4 H7 28.740 C4 C5 H8 52.792
C5 C4 H7 43.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability