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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: BLYP/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 BLYP/6-31+G**
 hartrees
Energy at 0K-245.987429
Energy at 298.15K 
HF Energy-245.987429
Nuclear repulsion energy159.659332
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 BLYP/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' 3214 3197 0.09 146.44 0.12 0.21
2 A' 3193 3176 0.04 64.97 0.72 0.84
3 A' 3169 3153 1.17 102.86 0.40 0.57
4 A' 1534 1526 9.45 4.84 0.00 0.01
5 A' 1408 1400 28.90 34.32 0.28 0.44
6 A' 1348 1340 3.25 5.51 0.04 0.08
7 A' 1199 1193 4.95 15.85 0.10 0.19
8 A' 1108 1102 20.67 6.68 0.31 0.48
9 A' 1074 1069 8.92 11.65 0.05 0.09
10 A' 1013 1007 11.12 2.84 0.72 0.84
11 A' 897 893 6.73 3.73 0.74 0.85
12 A' 877 872 0.76 0.68 0.50 0.67
13 A' 770 766 21.00 7.04 0.15 0.26
14 A" 863 858 6.99 0.48 0.75 0.86
15 A" 817 813 0.09 0.68 0.75 0.86
16 A" 746 742 65.31 0.08 0.75 0.86
17 A" 613 610 2.98 0.22 0.75 0.86
18 A" 577 574 11.83 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12209.6 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 12144.9 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 BLYP/6-31+G**
ABC
0.31897 0.31060 0.15737

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.136 0.373 0.000
C2 0.630 -0.968 0.000
C3 0.000 1.143 0.000
N4 -0.696 -1.020 0.000
O5 -1.112 0.355 0.000
H6 2.171 0.703 0.000
H7 1.186 -1.905 0.000
H8 -0.184 2.214 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43291.37262.30202.24851.08602.27792.2658
C21.43292.20231.32712.18702.27271.08973.2842
C31.37262.20232.27231.36282.21513.27001.0872
N42.30201.32712.27231.43673.34512.07963.2748
O52.24852.18701.36281.43673.30143.22282.0781
H61.08602.27272.21513.34513.30142.78722.7982
H72.27791.08973.27002.07963.22282.78724.3406
H82.26583.28421.08723.27482.07812.79824.3406

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.979 C1 C2 H7 128.605
C1 C3 O5 110.566 C1 C3 H8 133.856
C2 C1 C3 103.415 C2 C1 H6 128.390
C2 N4 O5 104.548 C3 C1 H6 128.195
C3 O5 N4 108.492 N4 C2 H7 118.416
O5 C3 H8 115.578
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.068      
2 C -0.106      
3 C -0.093      
4 N -0.262      
5 O -0.028      
6 H 0.129      
7 H 0.145      
8 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.733 1.551 0.000 3.142
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.339 -2.699 0.000
y -2.699 -25.695 0.000
z 0.000 0.000 -30.764
Traceless
 xyz
x -1.110 -2.699 0.000
y -2.699 4.357 0.000
z 0.000 0.000 -3.247
Polar
3z2-r2-6.494
x2-y2-3.645
xy-2.699
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.274 -0.065 0.000
y -0.065 7.928 0.000
z 0.000 0.000 4.282


<r2> (average value of r2) Å2
<r2> 79.034
(<r2>)1/2 8.890