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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP4=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4=FULL/3-21G
 hartrees
Energy at 0K-243.798306
Energy at 298.15K-243.802774
HF Energy-243.241606
Nuclear repulsion energy158.183183
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 MP4=FULL/3-21G
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' 3308 3238        
2 A' 3291 3221        
3 A' 3275 3206        
4 A' 1490 1459        
5 A' 1431 1400        
6 A' 1299 1271        
7 A' 1268 1241        
8 A' 1150 1125        
9 A' 1011 989        
10 A' 998 977        
11 A' 957 937        
12 A' 869 851        
13 A' 845 827        
14 A" 848 830        
15 A" 821 804        
16 A" 757 741        
17 A" 641 627        
18 A" 599 586        

Unscaled Zero Point Vibrational Energy (zpe) 12428.7 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 12165.2 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 MP4=FULL/3-21G
ABC
0.31347 0.30450 0.15446

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.155 0.301 0.000
C2 0.000 1.148 0.000
N3 1.147 0.501 0.000
C4 0.777 -0.902 0.000
C5 -0.584 -1.014 0.000
H6 -0.194 2.209 0.000
H7 1.531 -1.675 0.000
H8 -1.285 -1.834 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.43222.31022.27611.43332.13643.33402.1387
C21.43221.31652.19252.23931.07883.21113.2467
N32.31021.31651.45102.30012.17152.20973.3710
C42.27612.19251.45101.36603.25941.07922.2628
C51.43332.23932.30011.36603.24652.21551.0786
H62.13641.07882.17153.25943.24654.24984.1875
H73.33403.21112.20971.07922.21554.24982.8197
H82.13873.24673.37102.26281.07864.18752.8197

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.317 O1 C2 H6 115.891
O1 C5 C4 108.777 O1 C5 H8 116.016
C2 O1 C5 102.789 C2 N3 C4 104.679
N3 C2 H6 129.793 N3 C4 C5 109.438
N3 C4 H7 120.994 C4 C5 H8 135.206
C5 C4 H7 129.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability