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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-245.385731
Energy at 298.15K-245.390344
HF Energy-244.648327
Nuclear repulsion energy162.203418
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/cc-pVDZ
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' 3347 3188 0.36      
2 A' 3328 3170 0.35      
3 A' 3312 3155 1.77      
4 A' 1559 1485 5.59      
5 A' 1528 1455 28.18      
6 A' 1364 1299 3.72      
7 A' 1270 1210 0.87      
8 A' 1193 1136 34.06      
9 A' 1154 1099 5.63      
10 A' 1109 1056 1.98      
11 A' 1093 1041 35.27      
12 A' 919 875 23.94      
13 A' 908 865 8.31      
14 A" 853 813 1.51      
15 A" 822 783 34.48      
16 A" 758 722 23.43      
17 A" 667 636 21.40      
18 A" 631 601 2.82      

Unscaled Zero Point Vibrational Energy (zpe) 12907.5 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 12294.3 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/cc-pVDZ
ABC
0.33562 0.31564 0.16266

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.114 0.314 0.000
C2 0.000 1.096 0.000
N3 1.143 0.461 0.000
C4 0.762 -0.879 0.000
C5 -0.609 -0.959 0.000
H6 -0.171 2.171 0.000
H7 1.496 -1.685 0.000
H8 -1.336 -1.768 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36132.26242.22401.36942.08343.28732.0933
C21.36131.30802.11732.14311.08883.15753.1597
N32.26241.30801.39322.25512.15692.17433.3333
C42.22402.11731.39321.37373.19011.08922.2783
C51.36942.14312.25511.37373.16062.22621.0873
H62.08341.08882.15693.19013.16064.20074.1076
H73.28733.15752.17431.08922.22624.20072.8323
H82.09333.15973.33332.27831.08734.10762.8323

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.884 O1 C2 H6 116.051
O1 C5 C4 108.341 O1 C5 H8 116.406
C2 O1 C5 103.405 C2 N3 C4 103.187
N3 C2 H6 128.065 N3 C4 C5 109.183
N3 C4 H7 121.827 C4 C5 H8 135.252
C5 C4 H7 128.990
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability