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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-244.637075
Energy at 298.15K-244.641711
HF Energy-244.637075
Nuclear repulsion energy161.064924
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 mPW1PW91/3-21G
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' 3379 3226 0.46      
2 A' 3360 3207 1.08      
3 A' 3343 3191 1.56      
4 A' 1549 1479 5.82      
5 A' 1499 1431 16.27      
6 A' 1347 1286 13.12      
7 A' 1277 1219 0.05      
8 A' 1167 1114 12.69      
9 A' 1077 1029 7.61      
10 A' 1051 1003 14.97      
11 A' 1033 986 16.61      
12 A' 918 876 2.63      
13 A' 908 867 44.77      
14 A" 945 902 0.70      
15 A" 877 837 33.32      
16 A" 814 777 50.98      
17 A" 672 642 22.10      
18 A" 632 603 15.16      

Unscaled Zero Point Vibrational Energy (zpe) 12923.4 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 12336.7 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 mPW1PW91/3-21G
ABC
0.32411 0.31719 0.16031

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.105 0.308 0.000
C2 0.000 1.140 0.000
N3 1.120 0.472 0.000
C4 0.759 -0.895 0.000
C5 -0.596 -0.993 0.000
H6 -0.166 2.199 0.000
H7 1.491 -1.678 0.000
H8 -1.299 -1.801 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.38342.23162.21871.39782.11173.26972.1186
C21.38341.30452.17192.21521.07213.18883.2156
N32.23161.30451.41352.25652.15372.18193.3197
C42.21872.17191.41351.35843.22941.07272.2488
C51.39782.21522.25651.35843.22162.19701.0712
H62.11171.07212.15373.22943.22164.21704.1583
H73.26973.18882.18191.07272.19704.21702.7934
H82.11863.21563.31972.24881.07124.15832.7934

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 112.211 O1 C2 H6 118.079
O1 C5 C4 107.214 O1 C5 H8 117.595
C2 O1 C5 105.591 C2 N3 C4 106.011
N3 C2 H6 129.710 N3 C4 C5 108.973
N3 C4 H7 122.105 C4 C5 H8 135.191
C5 C4 H7 128.922
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.481      
2 C 0.279      
3 N -0.510      
4 C -0.096      
5 C 0.008      
6 H 0.282      
7 H 0.251      
8 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.134 -0.973 0.000 1.494
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.654 -1.156 0.000
y -1.156 -21.693 0.000
z 0.000 0.000 -30.059
Traceless
 xyz
x -5.778 -1.156 0.000
y -1.156 9.163 0.000
z 0.000 0.000 -3.385
Polar
3z2-r2-6.771
x2-y2-9.961
xy-1.156
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.202 -0.024 0.000
y -0.024 6.104 0.000
z 0.000 0.000 1.855


<r2> (average value of r2) Å2
<r2> 77.281
(<r2>)1/2 8.791