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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-44.438307
Energy at 298.15K-44.442839
Nuclear repulsion energy82.054679
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 B1B95/CEP-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' 3337 3195 0.04      
2 A' 3311 3170 0.21      
3 A' 3292 3152 0.77      
4 A' 1580 1512 9.16      
5 A' 1453 1391 30.72      
6 A' 1370 1311 2.28      
7 A' 1228 1176 8.39      
8 A' 1142 1094 24.41      
9 A' 1098 1052 3.02      
10 A' 1040 996 13.75      
11 A' 909 871 6.11      
12 A' 888 850 0.47      
13 A' 871 834 27.30      
14 A" 945 905 0.83      
15 A" 901 863 5.69      
16 A" 808 774 105.42      
17 A" 627 600 4.23      
18 A" 588 563 11.07      

Unscaled Zero Point Vibrational Energy (zpe) 12693.8 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 12154.3 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 B1B95/CEP-31G
ABC
0.31417 0.30460 0.15466

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.188 2.228 0.000
C2 0.000 1.160 0.000
H3 2.180 0.705 0.000
C4 1.147 0.379 0.000
O5 -1.119 0.349 0.000
H6 1.190 -1.913 0.000
C7 0.637 -0.977 0.000
N8 -0.706 -1.027 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 C7 N8
H11.08472.81622.28082.09734.36443.30983.2963
C21.08472.22731.38771.38203.29522.23002.2981
H32.81622.22731.08313.31842.79822.28203.3655
C42.28081.38771.08312.26642.29241.44882.3260
O52.09731.38203.31842.26643.23232.20071.4369
H64.36443.29522.79822.29243.23231.08692.0924
C73.30982.23002.28201.44882.20071.08691.3439
N83.29632.29813.36552.32601.43692.09241.3439

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 134.223 C1 C2 H7 173.373
C1 C3 O5 38.908 C1 C3 H8 63.724
C2 C1 C3 47.259 C2 C1 H6 8.426
C2 N4 O5 35.004 C3 C1 H6 38.833
C3 O5 N4 5.386 N4 C2 H7 39.150
O5 C3 H8 24.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.287      
2 C -0.381      
3 H 0.326      
4 C 0.061      
5 O -0.133      
6 H 0.285      
7 C -0.564      
8 N 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.383 1.685 0.000 3.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.453 -2.808 0.000
y -2.808 -24.725 0.000
z 0.000 0.000 -30.161
Traceless
 xyz
x -2.010 -2.808 0.000
y -2.808 5.082 0.000
z 0.000 0.000 -3.072
Polar
3z2-r2-6.144
x2-y2-4.727
xy-2.808
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.108 -0.222 0.000
y -0.222 6.709 0.000
z 0.000 0.000 2.691


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000