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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-244.606409
Energy at 298.15K-244.611016
HF Energy-244.606409
Nuclear repulsion energy160.718172
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 B3PW91/3-21G
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' 3359 3228 0.37      
2 A' 3339 3210 0.83      
3 A' 3322 3193 1.43      
4 A' 1535 1476 5.41      
5 A' 1484 1426 15.28      
6 A' 1335 1283 13.64      
7 A' 1268 1219 0.06      
8 A' 1158 1113 11.92      
9 A' 1067 1025 6.61      
10 A' 1041 1001 14.47      
11 A' 1017 978 16.53      
12 A' 909 874 4.89      
13 A' 898 864 42.22      
14 A" 932 896 0.83      
15 A" 864 831 35.34      
16 A" 804 772 49.03      
17 A" 667 641 21.12      
18 A" 626 602 14.41      

Unscaled Zero Point Vibrational Energy (zpe) 12812.6 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 12315.5 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 B3PW91/3-21G
ABC
0.32292 0.31560 0.15961

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.109 0.309 0.000
C2 0.000 1.142 0.000
N3 1.123 0.472 0.000
C4 0.761 -0.896 0.000
C5 -0.597 -0.995 0.000
H6 -0.166 2.203 0.000
H7 1.495 -1.681 0.000
H8 -1.301 -1.804 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.38652.23722.22371.40032.11543.27632.1219
C21.38651.30712.17482.21811.07403.19363.2204
N32.23721.30711.41532.26042.15752.18493.3253
C42.22372.17481.41531.36113.23411.07462.2529
C51.40032.21812.26041.36113.22632.20111.0730
H62.11541.07402.15753.23413.22634.22354.1646
H73.27633.19362.18491.07462.20114.22352.7983
H82.12193.22043.32532.25291.07304.16462.7983

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.284 O1 C2 H6 118.028
O1 C5 C4 107.263 O1 C5 H8 117.559
C2 O1 C5 105.489 C2 N3 C4 105.975
N3 C2 H6 129.688 N3 C4 C5 108.990
N3 C4 H7 122.096 C4 C5 H8 135.178
C5 C4 H7 128.914
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.468      
2 C 0.270      
3 N -0.500      
4 C -0.094      
5 C 0.007      
6 H 0.277      
7 H 0.246      
8 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.127 -0.964 0.000 1.483
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.595 -1.154 0.000
y -1.154 -21.728 0.000
z 0.000 0.000 -30.038
Traceless
 xyz
x -5.712 -1.154 0.000
y -1.154 9.089 0.000
z 0.000 0.000 -3.377
Polar
3z2-r2-6.754
x2-y2-9.867
xy-1.154
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.231 -0.023 0.000
y -0.023 6.171 0.000
z 0.000 0.000 1.861


<r2> (average value of r2) Å2
<r2> 77.525
(<r2>)1/2 8.805