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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBE1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G
 hartrees
Energy at 0K-245.668620
Energy at 298.15K 
HF Energy-245.668620
Nuclear repulsion energy160.047311
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 PBE1PBE/6-31G
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' 3369 3220 0.75 121.42 0.10 0.19
2 A' 3344 3196 1.12 38.78 0.67 0.80
3 A' 3327 3180 0.61 81.31 0.46 0.63
4 A' 1611 1540 8.48 2.66 0.11 0.20
5 A' 1479 1414 28.71 29.52 0.40 0.57
6 A' 1404 1342 5.17 4.74 0.12 0.21
7 A' 1260 1205 8.16 8.99 0.29 0.45
8 A' 1165 1114 19.82 8.21 0.54 0.70
9 A' 1114 1065 3.54 7.95 0.14 0.24
10 A' 1066 1019 14.91 3.18 0.72 0.83
11 A' 944 902 3.80 5.05 0.66 0.80
12 A' 926 885 1.29 1.49 0.61 0.76
13 A' 802 766 21.91 8.40 0.18 0.30
14 A" 954 912 4.14 2.05 0.75 0.86
15 A" 917 876 2.72 0.68 0.75 0.86
16 A" 815 779 79.63 0.92 0.75 0.86
17 A" 645 616 6.06 0.07 0.75 0.86
18 A" 605 578 11.46 1.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12872.6 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 12304.9 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 PBE1PBE/6-31G
ABC
0.32240 0.31032 0.15812

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 0.378 0.000
C2 0.633 -0.962 0.000
C3 0.000 1.147 0.000
N4 -0.688 -1.028 0.000
O5 -1.111 0.349 0.000
H6 2.150 0.700 0.000
H7 1.199 -1.880 0.000
H8 -0.180 2.208 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42601.36122.29242.23471.07622.25872.2468
C21.42602.20141.32272.18202.24941.07833.2721
C31.36122.20142.28101.36832.19603.25531.0762
N42.29241.32272.28101.44053.32232.06983.2754
O52.23472.18201.36831.44053.28033.20982.0793
H61.07622.24942.19603.32233.28032.74922.7757
H72.25871.07833.25532.06983.20982.74924.3139
H82.24683.27211.07623.27542.07932.77574.3139

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.969 C1 C2 H7 128.286
C1 C3 O5 109.916 C1 C3 H8 134.044
C2 C1 C3 104.316 C2 C1 H6 127.497
C2 N4 O5 104.226 C3 C1 H6 128.187
C3 O5 N4 108.573 N4 C2 H7 118.745
O5 C3 H8 116.039
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.240      
2 C -0.021      
3 C 0.131      
4 N -0.127      
5 O -0.408      
6 H 0.206      
7 H 0.226      
8 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.207 1.599 0.000 3.584
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.229 -2.644 0.000
y -2.644 -24.698 0.000
z 0.000 0.000 -30.041
Traceless
 xyz
x -1.859 -2.644 0.000
y -2.644 4.937 0.000
z 0.000 0.000 -3.078
Polar
3z2-r2-6.156
x2-y2-4.531
xy-2.644
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.924 -0.248 0.000
y -0.248 6.566 0.000
z 0.000 0.000 2.173


<r2> (average value of r2) Å2
<r2> 78.304
(<r2>)1/2 8.849