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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: M06-2X/3-21G

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/3-21G
 hartrees
Energy at 0K-244.557139
Energy at 298.15K 
HF Energy-244.557139
Nuclear repulsion energy159.316488
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/3-21G
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' 3371 3231 2.55 95.06 0.09 0.17
2 A' 3346 3208 2.03 45.34 0.71 0.83
3 A' 3328 3190 0.90 69.71 0.40 0.57
4 A' 1598 1532 10.88 3.49 0.12 0.22
5 A' 1432 1373 25.14 28.43 0.38 0.55
6 A' 1393 1335 7.82 3.09 0.14 0.25
7 A' 1252 1200 7.15 8.05 0.36 0.53
8 A' 1166 1118 17.13 8.62 0.54 0.70
9 A' 1087 1042 7.57 6.03 0.19 0.31
10 A' 1051 1007 9.94 2.42 0.65 0.79
11 A' 953 914 4.06 5.75 0.64 0.78
12 A' 919 881 0.11 2.47 0.36 0.53
13 A' 874 838 22.54 6.74 0.15 0.27
14 A" 985 944 0.87 1.45 0.75 0.86
15 A" 941 902 3.72 2.21 0.75 0.86
16 A" 826 792 81.44 1.18 0.75 0.86
17 A" 649 622 9.66 0.10 0.75 0.86
18 A" 595 570 10.41 1.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12881.6 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 12349.6 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 M06-2X/3-21G
ABC
0.31998 0.30673 0.15661

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.388 0.000
C2 0.637 -0.962 0.000
C3 0.000 1.148 0.000
N4 -0.681 -1.044 0.000
O5 -1.123 0.351 0.000
H6 2.148 0.714 0.000
H7 1.215 -1.871 0.000
H8 -0.170 2.209 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43591.35662.30472.24801.07382.26122.2342
C21.43592.20401.32082.19632.25631.07693.2727
C31.35662.20402.29501.37722.19093.25391.0752
N42.30471.32082.29501.46333.33042.06883.2929
O52.24802.19631.37721.46333.29103.22572.0883
H61.07382.25632.19093.33043.29102.74782.7586
H72.26121.07693.25392.06883.22572.74784.3090
H82.23423.27271.07523.29292.08832.75864.3090

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 113.381 C1 C2 H7 127.700
C1 C3 O5 110.628 C1 C3 H8 133.155
C2 C1 C3 104.192 C2 C1 H6 127.478
C2 N4 O5 104.043 C3 C1 H6 128.331
C3 O5 N4 107.756 N4 C2 H7 118.919
O5 C3 H8 116.218
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.373      
2 C 0.045      
3 C 0.154      
4 N -0.203      
5 O -0.385      
6 H 0.232      
7 H 0.263      
8 H 0.267      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.010 1.501 0.000 3.363
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.080 -2.569 0.000
y -2.569 -24.539 0.000
z 0.000 0.000 -30.456
Traceless
 xyz
x -1.582 -2.569 0.000
y -2.569 5.229 0.000
z 0.000 0.000 -3.647
Polar
3z2-r2-7.293
x2-y2-4.541
xy-2.569
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.510 -0.326 0.000
y -0.326 6.150 0.000
z 0.000 0.000 1.732


<r2> (average value of r2) Å2
<r2> 78.852
(<r2>)1/2 8.880