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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-246.069537
Energy at 298.15K 
HF Energy-246.069537
Nuclear repulsion energy161.526759
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 B3LYP/aug-cc-pVDZ
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' 3288 3191 0.05 130.17 0.10 0.18
2 A' 3265 3169 0.24 54.60 0.68 0.81
3 A' 3241 3145 0.70 93.21 0.36 0.53
4 A' 1594 1547 10.64 3.95 0.02 0.03
5 A' 1465 1421 31.52 40.46 0.20 0.33
6 A' 1392 1351 5.98 4.64 0.05 0.10
7 A' 1239 1202 5.57 17.12 0.09 0.16
8 A' 1142 1108 22.27 3.82 0.32 0.48
9 A' 1116 1083 8.67 13.03 0.08 0.14
10 A' 1036 1005 7.10 2.63 0.61 0.76
11 A' 929 901 11.70 2.74 0.68 0.81
12 A' 913 886 1.20 0.69 0.57 0.73
13 A' 872 847 24.10 6.24 0.13 0.24
14 A" 900 873 7.44 0.22 0.75 0.86
15 A" 866 840 0.20 0.68 0.75 0.86
16 A" 767 744 61.40 0.09 0.75 0.86
17 A" 643 624 2.27 0.17 0.75 0.86
18 A" 604 586 13.78 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12635.0 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 12261.0 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 B3LYP/aug-cc-pVDZ
ABC
0.32599 0.31832 0.16106

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.367 0.000
C2 0.618 -0.965 0.000
C3 0.000 1.130 0.000
N4 -0.695 -0.994 0.000
O5 -1.095 0.347 0.000
H6 2.162 0.695 0.000
H7 1.162 -1.906 0.000
H8 -0.179 2.200 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42711.36292.27592.22371.08352.27342.2525
C21.42712.18481.31322.15712.26771.08723.2645
C31.36292.18482.23511.34612.20493.25151.0850
N42.27591.31322.23511.39883.31892.06973.2356
O52.22372.15711.34611.39883.27473.18902.0672
H61.08352.26772.20493.31893.27472.78702.7829
H72.27341.08723.25152.06973.18902.78704.3202
H82.25253.26451.08503.23562.06722.78294.3202

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.244 C1 C2 H7 128.923
C1 C3 O5 110.337 C1 C3 H8 133.583
C2 C1 C3 103.063 C2 C1 H6 128.656
C2 N4 O5 105.343 C3 C1 H6 128.280
C3 O5 N4 109.013 N4 C2 H7 118.832
O5 C3 H8 116.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.131      
2 C 0.404      
3 C 0.528      
4 N -0.162      
5 O -0.483      
6 H -0.537      
7 H -0.406      
8 H -0.474      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.648 1.509 0.000 3.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.029 -2.724 0.000
y -2.724 -25.476 0.000
z 0.000 0.000 -30.440
Traceless
 xyz
x -1.071 -2.724 0.000
y -2.724 4.259 0.000
z 0.000 0.000 -3.188
Polar
3z2-r2-6.376
x2-y2-3.553
xy-2.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.209 -0.092 0.000
y -0.092 7.902 0.000
z 0.000 0.000 4.531


<r2> (average value of r2) Å2
<r2> 77.547
(<r2>)1/2 8.806