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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: B3LYP/CEP-121G

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-121G
 hartrees
Energy at 0K-44.523895
Energy at 298.15K-44.528442
HF Energy-44.523895
Nuclear repulsion energy82.535179
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-121G
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' 3306 3221 1.44      
2 A' 3290 3206 0.28      
3 A' 3268 3185 3.49      
4 A' 1513 1475 4.65      
5 A' 1463 1426 25.65      
6 A' 1318 1285 9.04      
7 A' 1251 1219 0.24      
8 A' 1145 1116 16.94      
9 A' 1067 1040 2.81      
10 A' 1022 996 13.88      
11 A' 1012 986 42.40      
12 A' 891 869 21.43      
13 A' 880 858 25.73      
14 A" 878 856 5.56      
15 A" 814 793 56.52      
16 A" 773 753 29.60      
17 A" 647 630 22.27      
18 A" 600 584 9.15      

Unscaled Zero Point Vibrational Energy (zpe) 12568.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 12248.0 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-121G
ABC
0.31835 0.30972 0.15699

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.131 0.307 0.000
C2 0.000 1.142 0.000
N3 1.141 0.481 0.000
C4 0.771 -0.897 0.000
C5 -0.599 -1.003 0.000
H6 -0.174 2.206 0.000
H7 1.521 -1.673 0.000
H8 -1.313 -1.810 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.40632.27882.25181.41382.12683.30982.1247
C21.40631.31822.18022.22721.07833.19963.2308
N32.27881.31821.42692.28702.16902.18753.3570
C42.25182.18021.42691.37493.24421.07872.2754
C51.41382.22722.28701.37493.23722.22351.0772
H62.12681.07832.16903.24423.23724.23344.1744
H73.30983.19962.18751.07872.22354.23342.8370
H82.12473.23083.35702.27541.07724.17442.8370

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 113.482 O1 C2 H6 117.123
O1 C5 C4 107.691 O1 C5 H8 116.415
C2 O1 C5 104.324 C2 N3 C4 105.091
N3 C2 H6 129.395 N3 C4 C5 109.412
N3 C4 H7 120.998 C4 C5 H8 135.895
C5 C4 H7 129.590
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.166      
2 C -0.184      
3 N 0.054      
4 C -0.245      
5 C -0.046      
6 H 0.197      
7 H 0.187      
8 H 0.203      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.120 -1.114 0.000 1.579
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.103 -1.272 0.000
y -1.272 -22.261 0.000
z 0.000 0.000 -30.319
Traceless
 xyz
x -6.813 -1.272 0.000
y -1.272 9.450 0.000
z 0.000 0.000 -2.637
Polar
3z2-r2-5.274
x2-y2-10.842
xy-1.272
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.261 0.025 0.000
y 0.025 7.023 0.000
z 0.000 0.000 3.258


<r2> (average value of r2) Å2
<r2> 65.035
(<r2>)1/2 8.064