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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: QCISD/aug-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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-245.451364
Energy at 298.15K-245.455961
HF Energy-244.662479
Nuclear repulsion energy161.830986
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 QCISD/aug-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' 3327 3223 0.59      
2 A' 3304 3201 0.28      
3 A' 3291 3188 2.46      
4 A' 1597 1547 8.55      
5 A' 1558 1509 36.24      
6 A' 1361 1319 4.53      
7 A' 1271 1231 0.12      
8 A' 1170 1133 31.54      
9 A' 1110 1075 14.29      
10 A' 1101 1067 7.31      
11 A' 1061 1027 36.54      
12 A' 915 887 21.13      
13 A' 906 878 11.93      
14 A" 869 842 1.62      
15 A" 850 823 22.57      
16 A" 755 731 35.32      
17 A" 650 629 26.10      
18 A" 606 587 4.79      

Unscaled Zero Point Vibrational Energy (zpe) 12851.3 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 12449.0 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 QCISD/aug-cc-pVDZ
ABC
0.33092 0.31704 0.16192

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.111 0.314 0.000
C2 0.000 1.107 0.000
N3 1.135 0.468 0.000
C4 0.761 -0.886 0.000
C5 -0.604 -0.971 0.000
H6 -0.167 2.181 0.000
H7 1.496 -1.688 0.000
H8 -1.325 -1.783 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36492.25102.22261.38062.09283.28652.1079
C21.36491.30202.13252.16331.08783.16953.1794
N32.25101.30201.40482.25692.15172.18603.3349
C42.22262.13251.40481.36713.20431.08822.2707
C51.38062.16332.25691.36713.18222.21911.0866
H62.09281.08782.15173.20433.18224.21144.1305
H73.28653.16952.18601.08822.21914.21142.8230
H82.10793.17943.33492.27071.08664.13052.8230

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.119 O1 C2 H6 116.685
O1 C5 C4 107.977 O1 C5 H8 116.871
C2 O1 C5 103.983 C2 N3 C4 103.904
N3 C2 H6 128.196 N3 C4 C5 109.017
N3 C4 H7 122.015 C4 C5 H8 135.152
C5 C4 H7 128.968
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability