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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-245.855570
Energy at 298.15K 
HF Energy-245.855570
Nuclear repulsion energy161.323587
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 PBEPBE/Def2TZVPP
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' 3214 3175 0.04 132.17 0.10 0.19
2 A' 3189 3150 0.04 63.98 0.59 0.75
3 A' 3168 3129 0.79 95.62 0.36 0.52
4 A' 1546 1527 8.04 3.28 0.04 0.09
5 A' 1423 1406 26.58 27.98 0.26 0.41
6 A' 1356 1340 4.03 4.16 0.05 0.09
7 A' 1203 1189 4.41 15.34 0.12 0.21
8 A' 1111 1097 20.78 3.78 0.54 0.70
9 A' 1094 1080 6.31 11.23 0.07 0.12
10 A' 1015 1003 9.50 3.52 0.71 0.83
11 A' 902 891 7.85 2.93 0.66 0.80
12 A' 891 880 0.69 1.33 0.62 0.77
13 A' 837 827 20.47 5.47 0.14 0.25
14 A" 873 863 6.17 0.87 0.75 0.86
15 A" 832 822 0.60 0.03 0.75 0.86
16 A" 754 745 59.71 0.12 0.75 0.86
17 A" 632 625 1.89 0.20 0.75 0.86
18 A" 595 588 12.48 0.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12316.3 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 12167.3 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 PBEPBE/Def2TZVPP
ABC
0.32446 0.31837 0.16069

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.130 0.367 0.000
C2 0.622 -0.961 0.000
C3 0.000 1.130 0.000
N4 -0.695 -0.998 0.000
O5 -1.099 0.347 0.000
H6 2.161 0.697 0.000
H7 1.170 -1.901 0.000
H8 -0.182 2.200 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42191.36342.27842.22891.08342.26762.2544
C21.42192.18181.31702.16182.26301.08743.2619
C31.36342.18182.23851.34952.20433.24841.0854
N42.27841.31702.23851.40443.32132.07143.2387
O52.22892.16181.34951.40443.27933.19362.0674
H61.08342.26302.20433.32133.27932.78062.7841
H72.26761.08743.24842.07143.19362.78064.3177
H82.25443.26191.08543.23872.06742.78414.3177

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.525 C1 C2 H7 128.810
C1 C3 O5 110.491 C1 C3 H8 133.713
C2 C1 C3 103.113 C2 C1 H6 128.695
C2 N4 O5 105.141 C3 C1 H6 128.193
C3 O5 N4 108.730 N4 C2 H7 118.666
O5 C3 H8 115.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.130      
2 C -0.064      
3 C -0.003      
4 N -0.104      
5 O -0.068      
6 H 0.126      
7 H 0.110      
8 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.440 1.492 0.000 2.860
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.563 -2.598 0.000
y -2.598 -25.350 0.000
z 0.000 0.000 -30.216
Traceless
 xyz
x -0.780 -2.598 0.000
y -2.598 4.039 0.000
z 0.000 0.000 -3.259
Polar
3z2-r2-6.519
x2-y2-3.213
xy-2.598
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.955 -0.135 0.000
y -0.135 7.687 0.000
z 0.000 0.000 4.065


<r2> (average value of r2) Å2
<r2> 77.494
(<r2>)1/2 8.803