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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-244.699967
Energy at 298.15K-244.704557
HF Energy-244.699967
Nuclear repulsion energy160.456337
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/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' 3350 3232 0.33      
2 A' 3330 3213 0.47      
3 A' 3314 3197 1.37      
4 A' 1531 1477 4.75      
5 A' 1476 1424 14.93      
6 A' 1332 1286 14.11      
7 A' 1271 1227 0.06      
8 A' 1158 1117 9.72      
9 A' 1050 1013 7.10      
10 A' 1032 996 12.87      
11 A' 1000 964 17.77      
12 A' 905 874 6.95      
13 A' 893 861 40.07      
14 A" 927 894 0.75      
15 A" 858 828 32.47      
16 A" 798 770 42.27      
17 A" 665 642 18.99      
18 A" 623 601 14.15      

Unscaled Zero Point Vibrational Energy (zpe) 12755.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12307.9 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/3-21G
ABC
0.32164 0.31470 0.15907

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.109 0.309 0.000
C2 0.000 1.145 0.000
N3 1.123 0.473 0.000
C4 0.761 -0.897 0.000
C5 -0.597 -0.997 0.000
H6 -0.166 2.205 0.000
H7 1.495 -1.681 0.000
H8 -1.299 -1.807 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.38902.23802.22581.40332.11803.27792.1245
C21.38901.30792.17942.22361.07343.19723.2252
N32.23801.30791.41772.26252.15852.18683.3267
C42.22582.17941.41771.36163.23821.07392.2525
C51.40332.22362.26251.36163.23142.20081.0721
H62.11801.07342.15853.23823.23144.22674.1693
H73.27793.19722.18681.07392.20084.22672.7974
H82.12453.22523.32672.25251.07214.16932.7974

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.126 O1 C2 H6 118.095
O1 C5 C4 107.220 O1 C5 H8 117.614
C2 O1 C5 105.564 C2 N3 C4 106.116
N3 C2 H6 129.779 N3 C4 C5 108.974
N3 C4 H7 122.126 C4 C5 H8 135.166
C5 C4 H7 128.900
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.463      
2 C 0.288      
3 N -0.490      
4 C -0.067      
5 C 0.032      
6 H 0.250      
7 H 0.217      
8 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.086 -0.954 0.000 1.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.653 -1.125 0.000
y -1.125 -21.985 0.000
z 0.000 0.000 -29.914
Traceless
 xyz
x -5.703 -1.125 0.000
y -1.125 8.799 0.000
z 0.000 0.000 -3.096
Polar
3z2-r2-6.191
x2-y2-9.668
xy-1.125
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.233 -0.030 0.000
y -0.030 6.198 0.000
z 0.000 0.000 1.844


<r2> (average value of r2) Å2
<r2> 77.754
(<r2>)1/2 8.818