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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-244.608924
Energy at 298.15K 
HF Energy-244.608924
Nuclear repulsion energy164.298131
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 HF/cc-pVDZ
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' 3458 3140 0.30 109.20 0.11 0.19
2 A' 3434 3118 0.13 39.63 0.75 0.86
3 A' 3414 3099 3.12 88.43 0.41 0.58
4 A' 1790 1626 18.77 1.83 0.75 0.86
5 A' 1634 1484 51.87 38.27 0.23 0.37
6 A' 1526 1385 17.60 2.35 0.71 0.83
7 A' 1364 1239 12.95 11.36 0.33 0.50
8 A' 1263 1147 25.50 2.24 0.32 0.49
9 A' 1214 1102 13.26 13.29 0.32 0.48
10 A' 1101 1000 1.41 2.07 0.33 0.50
11 A' 1036 941 62.46 4.13 0.16 0.27
12 A' 1008 915 7.69 4.50 0.75 0.86
13 A' 995 903 0.65 1.46 0.49 0.66
14 A" 1036 941 3.21 2.38 0.75 0.86
15 A" 1019 925 0.12 0.68 0.75 0.86
16 A" 864 784 54.16 0.74 0.75 0.86
17 A" 703 639 3.37 0.26 0.75 0.86
18 A" 648 588 20.84 1.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13752.1 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 12486.9 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 HF/cc-pVDZ
ABC
0.33827 0.32771 0.16645

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.120 0.368 0.000
C2 0.594 -0.963 0.000
C3 0.000 1.110 0.000
N4 -0.689 -0.964 0.000
O5 -1.069 0.337 0.000
H6 2.145 0.692 0.000
H7 1.124 -1.902 0.000
H8 -0.177 2.172 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43101.34372.24602.18951.07492.27022.2221
C21.43102.15691.28272.11152.26821.07843.2288
C31.34372.15692.18561.31952.18503.21551.0766
N42.24601.28272.18561.35593.28192.04103.1778
O52.18952.11151.31951.35593.23363.13482.0406
H61.07492.26822.18503.28193.23362.78822.7530
H72.27021.07843.21552.04103.13482.78824.2772
H82.22213.22881.07663.17782.04062.75304.2772

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.598 C1 C2 H7 129.016
C1 C3 O5 110.592 C1 C3 H8 132.996
C2 C1 C3 101.988 C2 C1 H6 129.131
C2 N4 O5 106.270 C3 C1 H6 128.880
C3 O5 N4 109.552 N4 C2 H7 119.386
O5 C3 H8 116.412
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 C 0.176      
3 C 0.304      
4 N -0.116      
5 O -0.257      
6 H 0.039      
7 H 0.053      
8 H 0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.742 1.504 0.000 3.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.846 -2.730 0.000
y -2.730 -24.606 0.000
z 0.000 0.000 -30.181
Traceless
 xyz
x -1.452 -2.730 0.000
y -2.730 4.907 0.000
z 0.000 0.000 -3.454
Polar
3z2-r2-6.909
x2-y2-4.240
xy-2.730
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.859 -0.388 0.000
y -0.388 6.208 0.000
z 0.000 0.000 2.629


<r2> (average value of r2) Å2
<r2> 75.423
(<r2>)1/2 8.685