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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: LSDA/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 LSDA/3-21G
 hartrees
Energy at 0K-243.394637
Energy at 298.15K-243.399193
HF Energy-243.394637
Nuclear repulsion energy161.067423
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 LSDA/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' 3274 3221 1.24      
2 A' 3255 3202 4.10      
3 A' 3235 3182 2.17      
4 A' 1500 1476 6.26      
5 A' 1461 1437 15.90      
6 A' 1306 1284 11.47      
7 A' 1225 1205 0.09      
8 A' 1128 1109 14.69      
9 A' 1085 1068 2.36      
10 A' 1040 1023 15.20      
11 A' 1004 988 13.09      
12 A' 897 882 6.83      
13 A' 885 870 40.71      
14 A" 894 880 1.23      
15 A" 823 810 37.46      
16 A" 770 757 46.44      
17 A" 662 651 22.10      
18 A" 627 616 11.94      

Unscaled Zero Point Vibrational Energy (zpe) 12535.3 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 12329.8 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 LSDA/3-21G
ABC
0.32502 0.31676 0.16042

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.108 0.309 0.000
C2 0.000 1.136 0.000
N3 1.122 0.468 0.000
C4 0.761 -0.892 0.000
C5 -0.597 -0.988 0.000
H6 -0.168 2.207 0.000
H7 1.501 -1.684 0.000
H8 -1.309 -1.804 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.38292.23572.22141.39382.11833.28342.1219
C21.38291.30592.16572.20621.08413.19503.2179
N32.23571.30591.40642.25242.16552.18523.3268
C42.22142.16571.40641.36133.23491.08452.2619
C51.39382.20622.25241.36133.22362.21061.0827
H62.11831.08412.16553.23493.22364.23434.1697
H73.28343.19502.18521.08452.21064.23432.8125
H82.12193.21793.32682.26191.08274.16972.8125

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.475 O1 C2 H6 117.822
O1 C5 C4 107.461 O1 C5 H8 117.369
C2 O1 C5 105.226 C2 N3 C4 105.911
N3 C2 H6 129.703 N3 C4 C5 108.927
N3 C4 H7 122.094 C4 C5 H8 135.170
C5 C4 H7 128.979
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.401      
2 C 0.202      
3 N -0.443      
4 C -0.100      
5 C -0.018      
6 H 0.270      
7 H 0.236      
8 H 0.254      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.164 -0.908 0.000 1.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.254 -1.125 0.000
y -1.125 -21.981 0.000
z 0.000 0.000 -30.032
Traceless
 xyz
x -5.248 -1.125 0.000
y -1.125 8.663 0.000
z 0.000 0.000 -3.415
Polar
3z2-r2-6.829
x2-y2-9.274
xy-1.125
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.226 -0.016 0.000
y -0.016 6.337 0.000
z 0.000 0.000 1.896


<r2> (average value of r2) Å2
<r2> 77.277
(<r2>)1/2 8.791