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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-246.123388
Energy at 298.15K 
HF Energy-246.123388
Nuclear repulsion energy162.422900
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/6-311+G(3df,2p)
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' 3278 3169 0.08 119.40 0.11 0.19
2 A' 3254 3146 0.17 56.72 0.63 0.77
3 A' 3231 3125 0.71 87.48 0.36 0.53
4 A' 1598 1545 10.93 3.08 0.02 0.04
5 A' 1461 1413 30.98 39.75 0.19 0.32
6 A' 1404 1358 6.93 3.17 0.10 0.17
7 A' 1253 1212 5.69 16.09 0.09 0.16
8 A' 1154 1116 21.71 4.69 0.26 0.42
9 A' 1122 1085 10.53 12.47 0.08 0.15
10 A' 1045 1010 6.31 2.23 0.52 0.69
11 A' 937 906 11.10 2.75 0.70 0.82
12 A' 921 891 1.33 0.66 0.57 0.73
13 A' 878 849 24.01 5.88 0.15 0.26
14 A" 923 893 5.34 0.28 0.75 0.86
15 A" 885 856 0.15 0.75 0.75 0.86
16 A" 784 758 61.95 0.19 0.75 0.86
17 A" 650 628 2.46 0.15 0.75 0.86
18 A" 610 590 12.72 0.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12693.5 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 12274.6 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/6-311+G(3df,2p)
ABC
0.32972 0.32169 0.16283

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.366 0.000
C2 0.614 -0.960 0.000
C3 0.000 1.124 0.000
N4 -0.690 -0.990 0.000
O5 -1.090 0.346 0.000
H6 2.146 0.692 0.000
H7 1.158 -1.892 0.000
H8 -0.177 2.186 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42041.35392.26332.21181.07442.25832.2354
C21.42042.17271.30462.14682.25321.07853.2439
C31.35392.17272.22341.33902.18883.23021.0765
N42.26331.30462.22341.39413.29722.05623.2169
O52.21182.14681.33901.39413.25403.17132.0542
H61.07442.25322.18883.29723.25402.76662.7610
H72.25831.07853.23022.05623.17132.76664.2903
H82.23543.24391.07653.21692.05422.76104.2903

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.247 C1 C2 H7 128.789
C1 C3 O5 110.443 C1 C3 H8 133.461
C2 C1 C3 103.078 C2 C1 H6 128.616
C2 N4 O5 105.361 C3 C1 H6 128.305
C3 O5 N4 108.870 N4 C2 H7 118.963
O5 C3 H8 116.095
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.125      
2 C 0.279      
3 C 0.243      
4 N -0.506      
5 O -0.433      
6 H 0.170      
7 H 0.185      
8 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.632 1.517 0.000 3.038
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.895 -2.707 0.000
y -2.707 -25.428 0.000
z 0.000 0.000 -30.375
Traceless
 xyz
x -0.993 -2.707 0.000
y -2.707 4.207 0.000
z 0.000 0.000 -3.214
Polar
3z2-r2-6.429
x2-y2-3.467
xy-2.707
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.073 -0.088 0.000
y -0.088 7.720 0.000
z 0.000 0.000 4.485


<r2> (average value of r2) Å2
<r2> 76.825
(<r2>)1/2 8.765