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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-245.953845
Energy at 298.15K 
HF Energy-245.953845
Nuclear repulsion energy162.234238
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 B3PW91/6-31+G**
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' 3312 3180 0.18      
2 A' 3290 3158 0.23      
3 A' 3269 3139 0.73      
4 A' 1615 1550 10.69      
5 A' 1486 1426 33.39      
6 A' 1412 1355 5.47      
7 A' 1256 1206 7.49      
8 A' 1166 1119 19.36      
9 A' 1137 1091 9.12      
10 A' 1051 1009 6.01      
11 A' 935 898 21.96      
12 A' 920 883 0.60      
13 A' 918 881 18.34      
14 A" 908 872 7.07      
15 A" 869 835 0.03      
16 A" 780 749 70.49      
17 A" 649 623 1.24      
18 A" 606 582 14.75      

Unscaled Zero Point Vibrational Energy (zpe) 12788.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 12278.1 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 B3PW91/6-31+G**
ABC
0.32832 0.32156 0.16245

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 0.365 0.000
C2 0.615 -0.961 0.000
C3 0.000 1.126 0.000
N4 -0.696 -0.986 0.000
O5 -1.089 0.342 0.000
H6 2.156 0.692 0.000
H7 1.155 -1.899 0.000
H8 -0.184 2.190 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42161.36012.26962.21661.07912.26402.2477
C21.42162.17511.31122.14492.25971.08253.2508
C31.36012.17512.22331.34142.19933.23751.0805
N42.26961.31122.22331.38503.30902.06403.2172
O52.21662.14491.34141.38503.26373.17142.0577
H61.07912.25972.19933.30903.26372.77722.7789
H72.26401.08253.23752.06403.17142.77724.3028
H82.24773.25081.08053.21722.05772.77894.3028

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.240 C1 C2 H7 128.917
C1 C3 O5 110.269 C1 C3 H8 133.808
C2 C1 C3 102.855 C2 C1 H6 128.761
C2 N4 O5 105.379 C3 C1 H6 128.384
C3 O5 N4 109.258 N4 C2 H7 118.843
O5 C3 H8 115.924
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.012      
2 C -0.165      
3 C -0.121      
4 N -0.253      
5 O -0.009      
6 H 0.175      
7 H 0.179      
8 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.698 1.595 0.000 3.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.677 -2.714 0.000
y -2.714 -25.047 0.000
z 0.000 0.000 -30.326
Traceless
 xyz
x -0.990 -2.714 0.000
y -2.714 4.454 0.000
z 0.000 0.000 -3.464
Polar
3z2-r2-6.929
x2-y2-3.630
xy-2.714
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.798 -0.098 0.000
y -0.098 7.328 0.000
z 0.000 0.000 3.986


<r2> (average value of r2) Å2
<r2> 76.852
(<r2>)1/2 8.767