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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-246.050391
Energy at 298.15K 
HF Energy-246.050391
Nuclear repulsion energy161.638198
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 B3LYPultrafine/6-31+G**
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' 3299 3176 0.06 129.43 0.12 0.21
2 A' 3278 3155 0.18 54.95 0.72 0.84
3 A' 3256 3134 0.85 94.33 0.40 0.57
4 A' 1604 1544 11.38 3.32 0.02 0.04
5 A' 1471 1416 33.37 41.13 0.23 0.38
6 A' 1404 1351 5.66 3.95 0.09 0.16
7 A' 1251 1205 6.89 14.90 0.12 0.21
8 A' 1155 1112 22.35 3.98 0.33 0.50
9 A' 1125 1083 9.88 12.80 0.09 0.17
10 A' 1047 1008 6.55 2.53 0.57 0.73
11 A' 931 896 10.43 3.56 0.68 0.81
12 A' 915 881 1.04 1.15 0.58 0.74
13 A' 880 847 27.16 6.39 0.16 0.28
14 A" 908 874 6.33 0.58 0.75 0.86
15 A" 869 837 0.01 0.72 0.75 0.86
16 A" 779 750 67.69 0.07 0.75 0.86
17 A" 642 618 2.16 0.28 0.75 0.86
18 A" 601 578 13.85 0.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12706.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 12232.3 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 B3LYPultrafine/6-31+G**
ABC
0.32650 0.31863 0.16126

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 0.368 0.000
C2 0.618 -0.963 0.000
C3 0.000 1.130 0.000
N4 -0.694 -0.996 0.000
O5 -1.095 0.346 0.000
H6 2.156 0.695 0.000
H7 1.163 -1.898 0.000
H8 -0.182 2.195 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42561.36132.27602.22281.07892.26662.2481
C21.42562.18241.31262.15542.26161.08243.2577
C31.36132.18242.23611.34652.19993.24391.0802
N42.27601.31262.23611.39983.31402.06493.2311
O52.22282.15541.34651.39983.26963.18312.0618
H61.07892.26162.19993.31403.26962.77662.7786
H72.26661.08243.24392.06493.18312.77664.3084
H82.24813.25771.08023.23112.06182.77864.3084

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.389 C1 C2 H7 128.798
C1 C3 O5 110.341 C1 C3 H8 133.756
C2 C1 C3 103.068 C2 C1 H6 128.583
C2 N4 O5 105.199 C3 C1 H6 128.349
C3 O5 N4 109.003 N4 C2 H7 118.814
O5 C3 H8 115.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.013      
2 C -0.100      
3 C -0.068      
4 N -0.270      
5 O -0.042      
6 H 0.149      
7 H 0.158      
8 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.761 1.583 0.000 3.182
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.094 -2.731 0.000
y -2.731 -25.386 0.000
z 0.000 0.000 -30.546
Traceless
 xyz
x -1.128 -2.731 0.000
y -2.731 4.434 0.000
z 0.000 0.000 -3.306
Polar
3z2-r2-6.612
x2-y2-3.708
xy-2.731
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.920 -0.102 0.000
y -0.102 7.461 0.000
z 0.000 0.000 4.103


<r2> (average value of r2) Å2
<r2> 77.460
(<r2>)1/2 8.801