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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-244.657956
Energy at 298.15K-244.662811
HF Energy-244.657956
Nuclear repulsion energy165.621013
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/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' 3463 3136 1.47      
2 A' 3427 3103 0.98      
3 A' 3425 3101 4.69      
4 A' 1765 1598 32.28      
5 A' 1705 1543 27.24      
6 A' 1495 1354 12.66      
7 A' 1396 1264 0.17      
8 A' 1290 1168 36.82      
9 A' 1220 1104 15.55      
10 A' 1183 1071 15.93      
11 A' 1155 1046 37.73      
12 A' 1013 917 13.58      
13 A' 990 897 25.55      
14 A" 1025 929 2.13      
15 A" 998 904 4.50      
16 A" 881 798 32.55      
17 A" 711 644 30.84      
18 A" 673 609 10.42      

Unscaled Zero Point Vibrational Energy (zpe) 13906.9 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 12592.7 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/6-31G(2df,p)
ABC
0.34378 0.33480 0.16962

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.077 0.306 0.000
C2 0.000 1.081 0.000
N3 1.103 0.466 0.000
C4 0.736 -0.868 0.000
C5 -0.586 -0.953 0.000
H6 -0.165 2.136 0.000
H7 1.459 -1.653 0.000
H8 -1.293 -1.749 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.32722.18652.16031.35142.04453.20492.0668
C21.32721.26322.08372.11691.06743.09923.1121
N32.18651.26321.38382.20632.09702.14873.2636
C42.16032.08371.38381.32493.13621.06722.2122
C51.35142.11692.20631.32493.11732.16181.0650
H62.04451.06742.09703.13623.11734.12234.0457
H73.20493.09922.14871.06722.16184.12232.7539
H82.06683.11213.26362.21221.06504.04572.7539

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.118 O1 C2 H6 116.832
O1 C5 C4 107.643 O1 C5 H8 117.102
C2 O1 C5 104.426 C2 N3 C4 103.754
N3 C2 H6 128.050 N3 C4 C5 109.059
N3 C4 H7 121.953 C4 C5 H8 135.255
C5 C4 H7 128.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.314      
2 C 0.161      
3 N -0.306      
4 C -0.122      
5 C 0.027      
6 H 0.191      
7 H 0.171      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.328 -0.779 0.000 1.540
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.000 -1.287 0.000
y -1.287 -22.069 0.000
z 0.000 0.000 -29.489
Traceless
 xyz
x -5.221 -1.287 0.000
y -1.287 8.175 0.000
z 0.000 0.000 -2.955
Polar
3z2-r2-5.909
x2-y2-8.931
xy-1.287
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.755 -0.008 0.000
y -0.008 6.184 0.000
z 0.000 0.000 2.906


<r2> (average value of r2) Å2
<r2> 73.960
(<r2>)1/2 8.600