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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: BLYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-245.969403
Energy at 298.15K 
HF Energy-245.969403
Nuclear repulsion energy159.800610
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/6-31G*
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' 3216 3190 0.67 122.19 0.10 0.19
2 A' 3195 3169 0.65 62.65 0.69 0.82
3 A' 3171 3145 3.14 95.83 0.39 0.56
4 A' 1548 1536 6.80 2.24 0.08 0.15
5 A' 1416 1405 27.06 25.25 0.40 0.57
6 A' 1360 1349 3.02 2.68 0.12 0.21
7 A' 1207 1197 4.29 11.63 0.24 0.39
8 A' 1118 1109 17.49 6.76 0.56 0.72
9 A' 1085 1076 6.88 8.10 0.11 0.20
10 A' 1020 1012 8.43 4.64 0.72 0.84
11 A' 900 892 6.75 4.30 0.68 0.81
12 A' 882 875 1.34 0.89 0.48 0.65
13 A' 781 775 19.20 6.43 0.16 0.27
14 A" 860 853 4.84 2.96 0.75 0.86
15 A" 810 803 0.02 0.41 0.75 0.86
16 A" 751 745 42.01 1.90 0.75 0.86
17 A" 617 612 3.35 0.35 0.75 0.86
18 A" 583 578 10.28 1.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12259.2 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 12159.9 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/6-31G*
ABC
0.31920 0.31153 0.15766

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.137 0.373 0.000
C2 0.629 -0.965 0.000
C3 0.000 1.140 0.000
N4 -0.697 -1.019 0.000
O5 -1.111 0.354 0.000
H6 2.172 0.703 0.000
H7 1.187 -1.902 0.000
H8 -0.185 2.212 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43111.37112.30212.24791.08652.27542.2649
C21.43112.19711.32692.18382.27201.09043.2799
C31.37112.19712.26911.36112.21533.26531.0880
N42.30211.32692.26911.43473.34582.08043.2717
O52.24792.18381.36111.43473.30153.22062.0759
H61.08652.27202.21533.34583.30152.78462.7990
H72.27541.09043.26532.08043.22062.78464.3369
H82.26493.27991.08803.27172.07592.79904.3369

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 113.115 C1 C2 H7 128.447
C1 C3 O5 110.718 C1 C3 H8 133.826
C2 C1 C3 103.246 C2 C1 H6 128.440
C2 N4 O5 104.447 C3 C1 H6 128.314
C3 O5 N4 108.475 N4 C2 H7 118.439
O5 C3 H8 115.456
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.182      
2 C 0.068      
3 C 0.145      
4 N -0.164      
5 O -0.289      
6 H 0.127      
7 H 0.143      
8 H 0.152      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.481 1.459 0.000 2.878
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.207 -2.401 0.000
y -2.401 -24.872 0.000
z 0.000 0.000 -29.493
Traceless
 xyz
x -1.025 -2.401 0.000
y -2.401 3.978 0.000
z 0.000 0.000 -2.953
Polar
3z2-r2-5.906
x2-y2-3.336
xy-2.401
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.157 -0.229 0.000
y -0.229 6.936 0.000
z 0.000 0.000 2.449


<r2> (average value of r2) Å2
<r2> 78.257
(<r2>)1/2 8.846