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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-245.853247
Energy at 298.15K 
HF Energy-245.853247
Nuclear repulsion energy159.630138
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 B3PW91/6-31G
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' 3353 3211 0.35      
2 A' 3328 3187 0.58      
3 A' 3309 3170 0.84      
4 A' 1597 1530 8.23      
5 A' 1464 1403 28.00      
6 A' 1394 1335 4.70      
7 A' 1252 1199 7.79      
8 A' 1159 1110 19.07      
9 A' 1104 1057 2.64      
10 A' 1056 1011 16.34      
11 A' 937 898 3.84      
12 A' 917 878 1.31      
13 A' 775 742 20.16      
14 A" 944 904 4.44      
15 A" 907 868 2.53      
16 A" 808 774 77.64      
17 A" 638 611 6.63      
18 A" 598 573 10.46      

Unscaled Zero Point Vibrational Energy (zpe) 12768.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12228.8 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 B3PW91/6-31G
ABC
0.32089 0.30851 0.15729

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.379 0.000
C2 0.636 -0.962 0.000
C3 0.000 1.149 0.000
N4 -0.687 -1.035 0.000
O5 -1.116 0.351 0.000
H6 2.151 0.702 0.000
H7 1.204 -1.879 0.000
H8 -0.180 2.211 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42741.36282.29772.24031.07672.25972.2485
C21.42742.20521.32512.18962.25061.07893.2762
C31.36282.20522.28941.37182.19753.25921.0766
N42.29771.32512.28941.45073.32752.07143.2848
O52.24032.18961.37181.45073.28603.21852.0818
H61.07672.25062.19753.32753.28602.74932.7769
H72.25971.07893.25922.07143.21852.74934.3179
H82.24853.27621.07663.28482.08182.77694.3179

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 113.134 C1 C2 H7 128.209
C1 C3 O5 110.017 C1 C3 H8 134.023
C2 C1 C3 104.412 C2 C1 H6 127.444
C2 N4 O5 104.058 C3 C1 H6 128.145
C3 O5 N4 108.379 N4 C2 H7 118.657
O5 C3 H8 115.960
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.224      
2 C -0.019      
3 C 0.127      
4 N -0.130      
5 O -0.398      
6 H 0.199      
7 H 0.219      
8 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.208 1.591 0.000 3.581
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.153 -2.633 0.000
y -2.633 -24.645 0.000
z 0.000 0.000 -29.945
Traceless
 xyz
x -1.858 -2.633 0.000
y -2.633 4.904 0.000
z 0.000 0.000 -3.046
Polar
3z2-r2-6.092
x2-y2-4.508
xy-2.633
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.963 -0.246 0.000
y -0.246 6.633 0.000
z 0.000 0.000 2.174


<r2> (average value of r2) Å2
<r2> 78.556
(<r2>)1/2 8.863