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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-246.064022
Energy at 298.15K 
HF Energy-246.064022
Nuclear repulsion energy160.389402
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/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' 3200 3191 0.33 131.98 0.13 0.23
2 A' 3176 3167 0.06 70.30 0.61 0.76
3 A' 3152 3142 1.58 97.99 0.37 0.54
4 A' 1533 1528 7.86 3.00 0.06 0.12
5 A' 1401 1397 26.59 27.38 0.30 0.46
6 A' 1350 1346 4.26 3.26 0.08 0.16
7 A' 1200 1197 3.98 13.04 0.15 0.26
8 A' 1108 1104 19.43 6.60 0.42 0.59
9 A' 1071 1068 9.03 8.77 0.07 0.14
10 A' 1012 1009 10.67 3.09 0.72 0.84
11 A' 904 901 7.23 3.88 0.67 0.80
12 A' 883 881 1.66 0.62 0.49 0.66
13 A' 761 758 18.04 6.21 0.16 0.27
14 A" 874 871 5.46 0.99 0.75 0.86
15 A" 832 830 0.19 0.05 0.75 0.86
16 A" 751 749 53.91 0.36 0.75 0.86
17 A" 622 620 4.34 0.16 0.75 0.86
18 A" 587 585 11.05 0.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12208.5 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 12171.9 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/cc-pVTZ
ABC
0.32203 0.31332 0.15881

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.130 0.372 0.000
C2 0.627 -0.963 0.000
C3 0.000 1.136 0.000
N4 -0.691 -1.017 0.000
O5 -1.109 0.355 0.000
H6 2.159 0.701 0.000
H7 1.183 -1.895 0.000
H8 -0.177 2.204 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42691.36402.28972.23861.08072.26712.2506
C21.42692.19121.31842.17932.26251.08493.2680
C31.36402.19122.26141.35652.20243.25371.0826
N42.28971.31842.26141.43423.32762.06923.2620
O52.23862.17931.35651.43423.28613.21142.0709
H61.08072.26252.20243.32763.28612.77322.7777
H72.26711.08493.25372.06923.21142.77324.3187
H82.25063.26801.08263.26202.07092.77774.3187

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.978 C1 C2 H7 128.489
C1 C3 O5 110.740 C1 C3 H8 133.492
C2 C1 C3 103.439 C2 C1 H6 128.391
C2 N4 O5 104.618 C3 C1 H6 128.170
C3 O5 N4 108.226 N4 C2 H7 118.534
O5 C3 H8 115.768
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.179      
2 C -0.030      
3 C 0.058      
4 N -0.075      
5 O -0.108      
6 H 0.110      
7 H 0.106      
8 H 0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.484 1.449 0.000 2.876
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.776 -2.536 0.000
y -2.536 -25.451 0.000
z 0.000 0.000 -30.179
Traceless
 xyz
x -0.961 -2.536 0.000
y -2.536 4.026 0.000
z 0.000 0.000 -3.066
Polar
3z2-r2-6.131
x2-y2-3.325
xy-2.536
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.803 -0.198 0.000
y -0.198 7.596 0.000
z 0.000 0.000 3.653


<r2> (average value of r2) Å2
<r2> 78.186
(<r2>)1/2 8.842