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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-244.423235
Energy at 298.15K-244.427871
HF Energy-244.423235
Nuclear repulsion energy161.012073
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 PBE1PBE/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' 3373 3239 0.49      
2 A' 3353 3220 1.21      
3 A' 3337 3205 1.63      
4 A' 1547 1486 5.82      
5 A' 1498 1439 16.38      
6 A' 1345 1291 12.88      
7 A' 1273 1222 0.04      
8 A' 1164 1118 13.07      
9 A' 1080 1037 7.50      
10 A' 1052 1010 14.70      
11 A' 1036 995 16.41      
12 A' 918 881 2.34      
13 A' 908 872 44.63      
14 A" 943 906 0.69      
15 A" 876 841 33.32      
16 A" 813 781 51.32      
17 A" 672 645 22.17      
18 A" 632 607 14.89      

Unscaled Zero Point Vibrational Energy (zpe) 12909.3 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 12398.1 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 PBE1PBE/3-21G
ABC
0.32400 0.31692 0.16021

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.106 0.309 0.000
C2 0.000 1.140 0.000
N3 1.121 0.471 0.000
C4 0.759 -0.895 0.000
C5 -0.597 -0.993 0.000
H6 -0.166 2.201 0.000
H7 1.493 -1.680 0.000
H8 -1.301 -1.802 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.38362.23292.21981.39782.11283.27212.1196
C21.38361.30532.17212.21501.07363.19063.2169
N32.23291.30531.41372.25732.15552.18323.3220
C42.21982.17211.41371.35943.23111.07422.2510
C51.39782.21502.25731.35943.22282.19931.0726
H62.11281.07362.15553.23113.22284.22014.1606
H73.27213.19062.18321.07422.19934.22012.7964
H82.11963.21693.32202.25101.07264.16062.7964

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.253 O1 C2 H6 118.054
O1 C5 C4 107.232 O1 C5 H8 117.579
C2 O1 C5 105.570 C2 N3 C4 105.979
N3 C2 H6 129.693 N3 C4 C5 108.965
N3 C4 H7 122.104 C4 C5 H8 135.189
C5 C4 H7 128.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.478      
2 C 0.278      
3 N -0.509      
4 C -0.097      
5 C 0.006      
6 H 0.282      
7 H 0.251      
8 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.142 -0.966 0.000 1.496
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.687 -1.156 0.000
y -1.156 -21.757 0.000
z 0.000 0.000 -30.126
Traceless
 xyz
x -5.746 -1.156 0.000
y -1.156 9.150 0.000
z 0.000 0.000 -3.404
Polar
3z2-r2-6.807
x2-y2-9.930
xy-1.156
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.212 -0.023 0.000
y -0.023 6.122 0.000
z 0.000 0.000 1.858


<r2> (average value of r2) Å2
<r2> 77.357
(<r2>)1/2 8.795