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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYPultrafine/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-246.092779
Energy at 298.15K 
HF Energy-246.092779
Nuclear repulsion energy162.079157
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 B3LYPultrafine/6-311G*
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' 3281 3171 0.58 117.50 0.13 0.22
2 A' 3259 3150 0.25 54.12 0.72 0.84
3 A' 3236 3127 2.74 89.23 0.40 0.57
4 A' 1604 1550 9.40 1.55 0.09 0.17
5 A' 1466 1416 31.82 31.64 0.30 0.46
6 A' 1405 1358 6.37 2.07 0.21 0.35
7 A' 1252 1210 6.62 11.11 0.21 0.35
8 A' 1151 1113 23.78 4.57 0.46 0.63
9 A' 1122 1084 11.06 8.87 0.15 0.27
10 A' 1046 1010 6.75 2.93 0.61 0.76
11 A' 939 907 10.11 4.46 0.65 0.78
12 A' 922 890 0.84 1.01 0.54 0.70
13 A' 875 846 25.73 5.44 0.19 0.32
14 A" 900 869 6.13 1.51 0.75 0.86
15 A" 865 836 0.19 0.08 0.75 0.86
16 A" 780 754 60.14 0.56 0.75 0.86
17 A" 648 626 2.80 0.24 0.75 0.86
18 A" 608 588 15.07 1.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12679.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 12252.2 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 B3LYPultrafine/6-311G*
ABC
0.32837 0.32030 0.16214

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.368 0.000
C2 0.616 -0.961 0.000
C3 0.000 1.126 0.000
N4 -0.691 -0.993 0.000
O5 -1.092 0.345 0.000
H6 2.153 0.695 0.000
H7 1.158 -1.896 0.000
H8 -0.185 2.189 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42361.35672.27052.21721.07772.26462.2431
C21.42362.17541.30742.14922.25901.08143.2497
C31.35672.17542.22881.34212.19533.23621.0790
N42.27051.30742.22881.39663.30722.05833.2220
O52.21722.14921.34211.39663.26293.17552.0547
H61.07772.25902.19533.30723.26292.77502.7742
H72.26461.08143.23622.05833.17552.77504.3000
H82.24313.24971.07903.22202.05472.77424.3000

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.414 C1 C2 H7 128.882
C1 C3 O5 110.486 C1 C3 H8 133.806
C2 C1 C3 102.944 C2 C1 H6 128.622
C2 N4 O5 105.227 C3 C1 H6 128.434
C3 O5 N4 108.930 N4 C2 H7 118.704
O5 C3 H8 115.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C -0.018      
3 C 0.065      
4 N -0.128      
5 O -0.194      
6 H 0.212      
7 H 0.225      
8 H 0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.609 1.512 0.000 3.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.616 -2.579 0.000
y -2.579 -24.942 0.000
z 0.000 0.000 -30.123
Traceless
 xyz
x -1.083 -2.579 0.000
y -2.579 4.428 0.000
z 0.000 0.000 -3.344
Polar
3z2-r2-6.689
x2-y2-3.674
xy-2.579
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.180 -0.236 0.000
y -0.236 6.835 0.000
z 0.000 0.000 2.939


<r2> (average value of r2) Å2
<r2> 76.865
(<r2>)1/2 8.767