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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: M06-2X/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/cc-pVTZ
 hartrees
Energy at 0K-246.026977
Energy at 298.15K 
HF Energy-246.026977
Nuclear repulsion energy163.244454
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 M06-2X/cc-pVTZ
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' 3320 3171 0.74 101.79 0.14 0.24
2 A' 3288 3141 0.44 56.91 0.51 0.67
3 A' 3273 3126 0.48 87.15 0.35 0.52
4 A' 1639 1566 11.84 1.47 0.16 0.28
5 A' 1497 1430 32.87 36.15 0.20 0.34
6 A' 1424 1360 10.30 1.81 0.40 0.57
7 A' 1271 1214 9.24 12.45 0.19 0.32
8 A' 1185 1132 17.89 1.95 0.41 0.58
9 A' 1144 1093 10.31 11.35 0.17 0.29
10 A' 1047 1000 2.82 3.07 0.53 0.69
11 A' 972 928 40.66 4.45 0.14 0.25
12 A' 937 895 5.48 2.91 0.75 0.86
13 A' 931 889 2.71 2.08 0.73 0.85
14 A" 939 897 4.96 0.98 0.75 0.86
15 A" 911 871 0.27 0.14 0.75 0.86
16 A" 799 763 60.49 0.15 0.75 0.86
17 A" 664 635 1.46 0.25 0.75 0.86
18 A" 620 592 15.66 0.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12930.7 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 12350.1 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 M06-2X/cc-pVTZ
ABC
0.33282 0.32502 0.16444

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.367 0.000
C2 0.609 -0.959 0.000
C3 0.000 1.118 0.000
N4 -0.691 -0.977 0.000
O5 -1.082 0.338 0.000
H6 2.144 0.695 0.000
H7 1.144 -1.894 0.000
H8 -0.182 2.179 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42141.35012.25672.20411.07372.26132.2321
C21.42142.16401.30002.13082.25661.07763.2355
C31.35012.16402.20581.33372.18563.22201.0762
N42.25671.30002.20581.37183.29162.05133.1963
O52.20412.13081.33371.37183.24603.15232.0488
H61.07372.25662.18563.29163.24602.77592.7591
H72.26131.07763.22202.05133.15232.77594.2832
H82.23213.23551.07623.19632.04882.75914.2832

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.958 C1 C2 H7 129.087
C1 C3 O5 110.419 C1 C3 H8 133.532
C2 C1 C3 102.640 C2 C1 H6 128.949
C2 N4 O5 105.757 C3 C1 H6 128.411
C3 O5 N4 109.225 N4 C2 H7 118.955
O5 C3 H8 116.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.050      
3 C 0.028      
4 N -0.091      
5 O -0.111      
6 H 0.149      
7 H 0.144      
8 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.527 1.503 0.000 2.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.467 -2.592 0.000
y -2.592 -24.976 0.000
z 0.000 0.000 -30.169
Traceless
 xyz
x -0.895 -2.592 0.000
y -2.592 4.342 0.000
z 0.000 0.000 -3.447
Polar
3z2-r2-6.895
x2-y2-3.491
xy-2.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.480 -0.223 0.000
y -0.223 7.059 0.000
z 0.000 0.000 3.602


<r2> (average value of r2) Å2
<r2> 76.064
(<r2>)1/2 8.721