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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-246.119928
Energy at 298.15K 
HF Energy-246.119928
Nuclear repulsion energy162.099955
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/TZVP
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' 3287 3173 0.14 120.34 0.11 0.20
2 A' 3265 3152 0.28 56.48 0.65 0.79
3 A' 3241 3129 0.69 88.98 0.36 0.52
4 A' 1600 1544 10.12 2.65 0.07 0.13
5 A' 1462 1411 30.64 37.80 0.25 0.39
6 A' 1402 1353 7.11 2.42 0.17 0.30
7 A' 1253 1210 6.30 13.06 0.14 0.25
8 A' 1153 1113 24.33 5.19 0.37 0.54
9 A' 1118 1079 13.04 9.58 0.11 0.19
10 A' 1044 1008 7.38 2.41 0.59 0.74
11 A' 938 906 8.73 4.55 0.66 0.80
12 A' 920 888 0.64 1.11 0.55 0.71
13 A' 860 830 27.07 6.34 0.18 0.31
14 A" 901 870 8.39 1.53 0.75 0.86
15 A" 873 842 0.09 0.05 0.75 0.86
16 A" 781 754 62.88 0.23 0.75 0.86
17 A" 641 619 2.26 0.19 0.75 0.86
18 A" 602 581 12.60 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12669.5 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 12231.1 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 B3LYP/TZVP
ABC
0.32873 0.32015 0.16219

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 0.369 0.000
C2 0.616 -0.959 0.000
C3 0.000 1.126 0.000
N4 -0.689 -0.996 0.000
O5 -1.093 0.345 0.000
H6 2.148 0.695 0.000
H7 1.162 -1.891 0.000
H8 -0.180 2.188 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42171.35442.26832.21621.07562.25982.2377
C21.42172.17461.30552.15032.25461.07943.2467
C31.35442.17462.23091.34322.19093.23281.0773
N42.26831.30552.23091.40083.30242.05583.2245
O52.21622.15031.34321.40083.25983.17572.0567
H61.07562.25462.19093.30243.25982.76712.7656
H72.25981.07943.23282.05583.17572.76714.2939
H82.23773.24671.07733.22452.05672.76564.2939

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.484 C1 C2 H7 128.735
C1 C3 O5 110.476 C1 C3 H8 133.598
C2 C1 C3 103.104 C2 C1 H6 128.531
C2 N4 O5 105.174 C3 C1 H6 128.365
C3 O5 N4 108.763 N4 C2 H7 118.782
O5 C3 H8 115.926
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 C -0.168      
3 C -0.071      
4 N -0.039      
5 O -0.091      
6 H 0.150      
7 H 0.144      
8 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.710 1.553 0.000 3.124
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.023 -2.676 0.000
y -2.676 -25.325 0.000
z 0.000 0.000 -30.299
Traceless
 xyz
x -1.211 -2.676 0.000
y -2.676 4.337 0.000
z 0.000 0.000 -3.125
Polar
3z2-r2-6.251
x2-y2-3.698
xy-2.676
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.640 -0.181 0.000
y -0.181 7.200 0.000
z 0.000 0.000 3.784


<r2> (average value of r2) Å2
<r2> 77.033
(<r2>)1/2 8.777