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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-245.627984
Energy at 298.15K-245.632603
HF Energy-244.727796
Nuclear repulsion energy163.328297
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/Def2TZVPP
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' 3342 3179 0.35      
2 A' 3322 3161 1.09      
3 A' 3310 3149 2.17      
4 A' 1552 1477 5.51      
5 A' 1516 1442 30.45      
6 A' 1362 1296 4.92      
7 A' 1283 1221 0.77      
8 A' 1190 1132 32.58      
9 A' 1144 1089 6.67      
10 A' 1115 1061 3.43      
11 A' 1092 1039 38.42      
12 A' 919 874 21.94      
13 A' 909 865 9.98      
14 A" 868 826 2.22      
15 A" 830 790 34.05      
16 A" 767 730 28.53      
17 A" 668 635 23.31      
18 A" 632 602 3.28      

Unscaled Zero Point Vibrational Energy (zpe) 12910.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 12283.9 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/Def2TZVPP
ABC
0.33846 0.32161 0.16491

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.106 0.311 0.000
C2 0.000 1.095 0.000
N3 1.130 0.459 0.000
C4 0.756 -0.876 0.000
C5 -0.600 -0.958 0.000
H6 -0.168 2.156 0.000
H7 1.481 -1.668 0.000
H8 -1.315 -1.757 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.35542.24102.20721.36552.06963.25652.0783
C21.35541.29712.11032.13831.07433.13443.1403
N32.24101.29711.38592.23622.13692.15513.3000
C42.20722.11031.38591.35823.16901.07402.2506
C51.36552.13832.23621.35823.14332.19871.0726
H62.06961.07432.13693.16903.14334.16404.0774
H73.25653.13442.15511.07402.19874.16402.7975
H82.07833.14033.30002.25061.07264.07742.7975

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.298 O1 C2 H6 116.342
O1 C5 C4 108.271 O1 C5 H8 116.445
C2 O1 C5 103.605 C2 N3 C4 103.672
N3 C2 H6 128.360 N3 C4 C5 109.154
N3 C4 H7 121.836 C4 C5 H8 135.284
C5 C4 H7 129.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability