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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: QCISD/6-31G**

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/6-31G**
 hartrees
Energy at 0K-245.394578
Energy at 298.15K-245.399195
HF Energy-244.635572
Nuclear repulsion energy162.804733
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3379 3181 0.81      
2 A' 3355 3159 0.48      
3 A' 3343 3147 2.63      
4 A' 1638 1542 10.83      
5 A' 1597 1503 30.65      
6 A' 1402 1320 5.72      
7 A' 1313 1236 0.08      
8 A' 1212 1141 33.34      
9 A' 1141 1074 16.03      
10 A' 1132 1066 2.68      
11 A' 1093 1029 37.04      
12 A' 931 876 15.59      
13 A' 919 865 18.23      
14 A" 870 819 1.72      
15 A" 852 802 20.11      
16 A" 765 720 23.15      
17 A" 659 620 28.78      
18 A" 614 578 3.68      

Unscaled Zero Point Vibrational Energy (zpe) 13106.8 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 12338.8 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/6-31G**
ABC
0.33523 0.32044 0.16383

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.108 0.310 0.000
C2 0.000 1.098 0.000
N3 1.131 0.468 0.000
C4 0.755 -0.877 0.000
C5 -0.598 -0.966 0.000
H6 -0.168 2.160 0.000
H7 1.483 -1.668 0.000
H8 -1.309 -1.770 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.35982.24492.20871.37402.07543.25982.0889
C21.35981.29482.11412.14841.07533.13833.1520
N32.24491.29481.39662.24592.13322.16453.3107
C42.20872.11411.39661.35513.17391.07532.2485
C51.37402.14842.24591.35513.15522.19601.0735
H62.07541.07532.13323.17393.15524.16874.0918
H73.25983.13832.16451.07532.19604.16872.7943
H82.08893.15203.31072.24851.07354.09182.7943

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.466 O1 C2 H6 116.438
O1 C5 C4 108.057 O1 C5 H8 116.656
C2 O1 C5 103.602 C2 N3 C4 103.472
N3 C2 H6 128.096 N3 C4 C5 109.403
N3 C4 H7 121.704 C4 C5 H8 135.287
C5 C4 H7 128.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability