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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: TPSSh/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 TPSSh/3-21G*
 hartrees
Energy at 0K-244.714437
Energy at 298.15K-244.718981
HF Energy-244.714437
Nuclear repulsion energy159.849133
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 TPSSh/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' 3347 3232 0.22      
2 A' 3330 3216 0.15      
3 A' 3311 3197 1.22      
4 A' 1517 1465 4.07      
5 A' 1461 1411 12.32      
6 A' 1320 1274 14.83      
7 A' 1261 1218 0.12      
8 A' 1152 1113 9.92      
9 A' 1040 1004 7.01      
10 A' 1020 985 11.42      
11 A' 984 951 17.31      
12 A' 889 858 9.22      
13 A' 875 845 36.19      
14 A" 913 882 1.82      
15 A" 844 815 48.16      
16 A" 794 767 39.83      
17 A" 656 633 17.97      
18 A" 614 593 12.77      

Unscaled Zero Point Vibrational Energy (zpe) 12664.3 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 12229.9 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 TPSSh/3-21G*
ABC
0.32008 0.31134 0.15783

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.116 0.309 0.000
C2 0.000 1.145 0.000
N3 1.130 0.475 0.000
C4 0.764 -0.898 0.000
C5 -0.598 -1.000 0.000
H6 -0.168 2.205 0.000
H7 1.499 -1.682 0.000
H8 -1.303 -1.808 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.39442.25212.23471.40762.12003.28732.1259
C21.39441.31312.18122.22631.07363.19993.2281
N32.25211.31311.42142.27192.16252.18903.3370
C42.23472.18121.42141.36623.24041.07472.2590
C51.40762.22632.27191.36623.23362.20581.0730
H62.12001.07362.16253.24043.23364.22994.1711
H73.28733.19992.18901.07472.20584.22992.8054
H82.12593.22813.33702.25901.07304.17112.8054

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.532 O1 C2 H6 117.814
O1 C5 C4 107.334 O1 C5 H8 117.329
C2 O1 C5 105.226 C2 N3 C4 105.748
N3 C2 H6 129.654 N3 C4 C5 109.160
N3 C4 H7 121.945 C4 C5 H8 135.337
C5 C4 H7 128.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.457      
2 C 0.266      
3 N -0.494      
4 C -0.090      
5 C 0.007      
6 H 0.272      
7 H 0.240      
8 H 0.257      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.097 -0.952 0.000 1.452
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.323 -0.019 0.000
y -0.019 6.295 0.000
z 0.000 0.000 1.865


<r2> (average value of r2) Å2
<r2> 78.191
(<r2>)1/2 8.843