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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-245.807244
Energy at 298.15K-245.811762
HF Energy-245.807244
Nuclear repulsion energy162.371239
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 PBEPBE/6-31G(2df,p)
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' 3234 3201 0.60      
2 A' 3213 3180 0.33      
3 A' 3197 3164 2.48      
4 A' 1526 1510 9.51      
5 A' 1488 1473 20.75      
6 A' 1319 1306 3.48      
7 A' 1228 1216 0.47      
8 A' 1135 1124 17.97      
9 A' 1114 1102 5.71      
10 A' 1068 1057 7.83      
11 A' 1054 1043 28.11      
12 A' 897 887 19.76      
13 A' 886 877 14.45      
14 A" 828 820 5.68      
15 A" 791 783 21.70      
16 A" 729 722 19.68      
17 A" 652 645 18.56      
18 A" 614 608 2.49      

Unscaled Zero Point Vibrational Energy (zpe) 12486.3 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 12357.6 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 PBEPBE/6-31G(2df,p)
ABC
0.33501 0.31759 0.16303

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.112 0.311 0.000
C2 0.000 1.099 0.000
N3 1.136 0.463 0.000
C4 0.760 -0.878 0.000
C5 -0.602 -0.964 0.000
H6 -0.172 2.172 0.000
H7 1.496 -1.677 0.000
H8 -1.328 -1.769 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36292.25332.21731.37272.08503.27952.0913
C21.36291.30242.11842.14891.08693.15413.1611
N32.25331.30241.39312.24872.15292.17043.3252
C42.21732.11841.39311.36423.18981.08682.2700
C51.37272.14892.24871.36423.16532.21621.0846
H62.08501.08692.15293.18983.16534.19584.1075
H73.27953.15412.17041.08682.21624.19582.8260
H82.09133.16113.32522.27001.08464.10752.8260

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.414 O1 C2 H6 116.208
O1 C5 C4 108.214 O1 C5 H8 116.159
C2 O1 C5 103.536 C2 N3 C4 103.557
N3 C2 H6 128.378 N3 C4 C5 109.279
N3 C4 H7 121.643 C4 C5 H8 135.628
C5 C4 H7 129.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.111      
2 C 0.077      
3 N -0.261      
4 C -0.100      
5 C -0.044      
6 H 0.156      
7 H 0.131      
8 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.312 -0.732 0.000 1.502
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.310 -1.165 0.000
y -1.165 -22.579 0.000
z 0.000 0.000 -29.181
Traceless
 xyz
x -4.430 -1.165 0.000
y -1.165 7.166 0.000
z 0.000 0.000 -2.736
Polar
3z2-r2-5.473
x2-y2-7.730
xy-1.165
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.040 0.050 0.000
y 0.050 7.045 0.000
z 0.000 0.000 3.007


<r2> (average value of r2) Å2
<r2> 76.100
(<r2>)1/2 8.724