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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-245.521637
Energy at 298.15K-245.526318
HF Energy-244.656061
Nuclear repulsion energy163.771234
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 CCD/6-31G(2df,p)
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' 3357 3180 0.52      
2 A' 3331 3155 0.17      
3 A' 3325 3149 2.20      
4 A' 1634 1548 17.44      
5 A' 1587 1503 23.42      
6 A' 1397 1324 3.94      
7 A' 1305 1236 0.24      
8 A' 1232 1167 41.21      
9 A' 1147 1086 7.83      
10 A' 1141 1081 10.06      
11 A' 1109 1051 31.66      
12 A' 946 896 15.26      
13 A' 928 879 18.34      
14 A" 899 852 2.02      
15 A" 880 834 13.53      
16 A" 799 757 26.96      
17 A" 674 638 25.54      
18 A" 634 600 4.16      

Unscaled Zero Point Vibrational Energy (zpe) 13163.3 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 12468.2 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 CCD/6-31G(2df,p)
ABC
0.33924 0.32437 0.16582

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.100 0.310 0.000
C2 0.000 1.089 0.000
N3 1.127 0.464 0.000
C4 0.750 -0.875 0.000
C5 -0.597 -0.956 0.000
H6 -0.169 2.151 0.000
H7 1.477 -1.668 0.000
H8 -1.315 -1.755 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.34772.23212.19751.36202.06333.24922.0760
C21.34771.28832.10232.12961.07613.12783.1326
N32.23211.28831.39112.23302.12742.16093.2989
C42.19752.10231.39111.34973.16311.07592.2444
C51.36202.12962.23301.34973.13632.19331.0742
H62.06331.07612.12743.16313.13634.15934.0707
H73.24923.12782.16091.07592.19334.15932.7932
H82.07603.13263.29892.24441.07424.07072.7932

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.710 O1 C2 H6 116.253
O1 C5 C4 108.266 O1 C5 H8 116.403
C2 O1 C5 103.606 C2 N3 C4 103.306
N3 C2 H6 128.037 N3 C4 C5 109.112
N3 C4 H7 121.794 C4 C5 H8 135.331
C5 C4 H7 129.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability