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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD/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 CCSD/cc-pVTZ
 hartrees
Energy at 0K-245.629704
Energy at 298.15K-245.634381
HF Energy-244.719971
Nuclear repulsion energy163.643946
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 CCSD/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' 3334 3138 0.57      
2 A' 3309 3114 0.23      
3 A' 3300 3106 2.34      
4 A' 1621 1525 14.17      
5 A' 1580 1487 28.03      
6 A' 1389 1308 4.94      
7 A' 1301 1225 0.13      
8 A' 1206 1135 35.86      
9 A' 1136 1069 12.62      
10 A' 1128 1061 7.53      
11 A' 1094 1030 34.71      
12 A' 938 883 15.90      
13 A' 925 870 17.54      
14 A" 906 853 0.61      
15 A" 885 833 17.74      
16 A" 790 744 36.34      
17 A" 667 628 26.30      
18 A" 629 592 6.24      

Unscaled Zero Point Vibrational Energy (zpe) 13068.6 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 12300.1 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 CCSD/cc-pVTZ
ABC
0.33819 0.32430 0.16555

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.101 0.310 0.000
C2 0.000 1.091 0.000
N3 1.125 0.465 0.000
C4 0.751 -0.875 0.000
C5 -0.595 -0.959 0.000
H6 -0.166 2.153 0.000
H7 1.477 -1.666 0.000
H8 -1.306 -1.762 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.35082.23192.19871.36612.06693.24842.0815
C21.35081.28752.10502.13541.07413.12843.1381
N32.23191.28751.39182.23372.12442.16063.2973
C42.19872.10501.39181.34873.16341.07392.2401
C51.36612.13542.23371.34873.14142.18951.0722
H62.06691.07412.12443.16343.14144.15734.0771
H73.24843.12842.16061.07392.18954.15732.7849
H82.08153.13813.29732.24011.07224.07712.7849

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.537 O1 C2 H6 116.482
O1 C5 C4 108.169 O1 C5 H8 116.707
C2 O1 C5 103.620 C2 N3 C4 103.497
N3 C2 H6 127.981 N3 C4 C5 109.178
N3 C4 H7 121.862 C4 C5 H8 135.124
C5 C4 H7 128.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability