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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-243.251053
Energy at 298.15K-243.255891
HF Energy-243.251053
Nuclear repulsion energy162.841588
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 HF/3-21G*
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' 3531 3187 0.50      
2 A' 3510 3168 0.06      
3 A' 3495 3155 2.32      
4 A' 1698 1533 14.13      
5 A' 1649 1488 26.52      
6 A' 1458 1316 12.26      
7 A' 1381 1246 0.00      
8 A' 1256 1134 11.88      
9 A' 1146 1034 30.06      
10 A' 1106 998 13.41      
11 A' 1094 988 22.59      
12 A' 998 901 10.23      
13 A' 974 880 50.71      
14 A" 1087 981 0.06      
15 A" 1023 924 12.60      
16 A" 923 833 54.80      
17 A" 719 649 29.92      
18 A" 669 604 30.01      

Unscaled Zero Point Vibrational Energy (zpe) 13858.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 12508.7 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 HF/3-21G*
ABC
0.33190 0.32352 0.16383

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.120 0.000
C2 1.100 0.311 0.000
N3 0.753 -0.922 0.000
C4 -0.659 -0.959 0.000
C5 -1.118 0.294 0.000
H6 2.063 0.750 0.000
H7 -1.204 -1.868 0.000
H8 -2.075 0.743 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36552.17662.18121.38972.09633.22092.1091
C21.36551.28132.17022.21791.05843.17133.2048
N32.17661.28131.41302.23132.12432.17373.2825
C42.18122.17021.41301.33433.21471.05922.2145
C51.38972.21792.23131.33433.21352.16311.0579
H62.09631.05842.12433.21473.21354.18674.1386
H73.22093.17132.17371.05922.16314.18672.7524
H82.10913.20483.28252.21451.05794.13862.7524

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 110.602 O1 C2 H6 119.189
O1 C5 C4 106.381 O1 C5 H8 118.386
C2 O1 C5 107.215 C2 N3 C4 107.215
N3 C2 H6 130.209 N3 C4 C5 108.587
N3 C4 H7 122.462 C4 C5 H8 135.234
C5 C4 H7 128.952
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.645      
2 C 0.426      
3 N -0.613      
4 C -0.089      
5 C 0.067      
6 H 0.295      
7 H 0.271      
8 H 0.289      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.066 -1.089 0.000 1.524
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.891 -1.180 0.000
y -1.180 -21.588 0.000
z 0.000 0.000 -30.311
Traceless
 xyz
x -6.941 -1.180 0.000
y -1.180 10.013 0.000
z 0.000 0.000 -3.071
Polar
3z2-r2-6.143
x2-y2-11.303
xy-1.180
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.121 -0.080 0.000
y -0.080 5.643 0.000
z 0.000 0.000 1.739


<r2> (average value of r2) Å2
<r2> 76.317
(<r2>)1/2 8.736