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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-44.603394
Energy at 298.15K-44.607942
HF Energy-44.603394
Nuclear repulsion energy83.505854
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3295 3182 1.45      
2 A' 3278 3165 0.86      
3 A' 3256 3145 3.68      
4 A' 1576 1522 11.30      
5 A' 1527 1475 31.68      
6 A' 1352 1305 3.37      
7 A' 1263 1219 1.05      
8 A' 1158 1118 24.62      
9 A' 1124 1086 10.67      
10 A' 1092 1054 6.83      
11 A' 1068 1031 44.04      
12 A' 907 876 12.94      
13 A' 896 865 20.23      
14 A" 864 834 3.48      
15 A" 835 807 45.82      
16 A" 749 723 49.80      
17 A" 652 630 23.41      
18 A" 610 589 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 12750.2 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 12312.9 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 B3LYP/CEP-31G*
ABC
0.33056 0.31386 0.16100

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.113 0.313 0.000
C2 0.000 1.109 0.000
N3 1.139 0.468 0.000
C4 0.768 -0.885 0.000
C5 -0.612 -0.975 0.000
H6 -0.170 2.186 0.000
H7 1.508 -1.683 0.000
H8 -1.340 -1.782 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36862.25692.23001.38242.09663.29472.1073
C21.36861.30702.13682.17231.08943.17373.1866
N32.25691.30701.40212.26812.15932.18223.3468
C42.23002.13681.40211.38243.21021.08872.2904
C51.38242.17232.26811.38243.19132.23471.0867
H62.09661.08942.15933.21023.19134.21674.1364
H73.29473.17372.18221.08872.23474.21672.8492
H82.10733.18663.34682.29041.08674.13642.8492

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.013 O1 C2 H6 116.618
O1 C5 C4 107.525 O1 C5 H8 116.678
C2 O1 C5 104.305 C2 N3 C4 104.083
N3 C2 H6 128.369 N3 C4 C5 109.075
N3 C4 H7 121.844 C4 C5 H8 135.797
C5 C4 H7 129.082
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.011      
2 C -0.478      
3 N 0.184      
4 C -0.379      
5 C -0.189      
6 H 0.275      
7 H 0.297      
8 H 0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.291 -0.894 0.000 1.570
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.115 -1.285 0.000
y -1.285 -22.016 0.000
z 0.000 0.000 -29.936
Traceless
 xyz
x -5.140 -1.285 0.000
y -1.285 8.510 0.000
z 0.000 0.000 -3.371
Polar
3z2-r2-6.741
x2-y2-9.100
xy-1.285
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.132 0.082 0.000
y 0.082 6.648 0.000
z 0.000 0.000 3.136


<r2> (average value of r2) Å2
<r2> 63.484
(<r2>)1/2 7.968