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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3LYP/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/SDD
 hartrees
Energy at 0K-245.990402
Energy at 298.15K 
HF Energy-245.990402
Nuclear repulsion energy158.486113
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 B3LYP/SDD
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' 3335 3206 0.02 122.69 0.10 0.18
2 A' 3308 3180 0.43 37.55 0.73 0.84
3 A' 3288 3160 0.70 77.15 0.44 0.61
4 A' 1563 1503 10.08 4.43 0.23 0.37
5 A' 1429 1373 27.96 32.64 0.35 0.52
6 A' 1366 1313 3.98 6.84 0.19 0.33
7 A' 1225 1178 7.60 10.83 0.28 0.44
8 A' 1140 1096 24.23 8.49 0.40 0.58
9 A' 1078 1036 1.65 9.61 0.09 0.17
10 A' 1030 990 19.40 3.04 0.56 0.72
11 A' 924 889 5.60 7.85 0.65 0.79
12 A' 898 863 0.16 2.16 0.62 0.76
13 A' 805 774 24.20 8.73 0.21 0.35
14 A" 930 894 0.19 1.62 0.75 0.86
15 A" 880 846 10.14 0.79 0.75 0.86
16 A" 799 768 99.90 0.22 0.75 0.86
17 A" 630 606 8.50 0.25 0.75 0.86
18 A" 587 564 9.73 1.94 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12607.0 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 12119.1 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 B3LYP/SDD
ABC
0.31556 0.30464 0.15500

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.134 0.382 0.000
C2 0.643 -0.970 0.000
C3 0.000 1.158 0.000
N4 -0.694 -1.038 0.000
O5 -1.125 0.351 0.000
H6 2.162 0.708 0.000
H7 1.209 -1.892 0.000
H8 -0.182 2.222 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43911.37442.31522.25951.07842.27542.2623
C21.43912.22381.33872.20722.26341.08153.2975
C31.37442.22382.30381.38482.20903.28121.0793
N42.31521.33872.30381.45463.34762.08563.3005
O52.25952.20721.38481.45463.30673.23702.0955
H61.07842.26342.20903.34763.30672.76862.7914
H72.27541.08153.28122.08563.23702.76864.3430
H82.26233.29751.07933.30052.09552.79144.3430

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.869 C1 C2 H7 128.488
C1 C3 O5 109.947 C1 C3 H8 134.097
C2 C1 C3 104.427 C2 C1 H6 127.500
C2 N4 O5 104.328 C3 C1 H6 128.073
C3 O5 N4 108.430 N4 C2 H7 118.644
O5 C3 H8 115.956
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.286      
2 C -0.224      
3 C -0.080      
4 N 0.000      
5 O -0.214      
6 H 0.263      
7 H 0.271      
8 H 0.269      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.292 1.628 0.000 3.672
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.436 -2.778 0.000
y -2.778 -24.872 0.000
z 0.000 0.000 -30.469
Traceless
 xyz
x -1.766 -2.778 0.000
y -2.778 5.080 0.000
z 0.000 0.000 -3.315
Polar
3z2-r2-6.629
x2-y2-4.564
xy-2.778
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.113 -0.256 0.000
y -0.256 6.745 0.000
z 0.000 0.000 2.556


<r2> (average value of r2) Å2
<r2> 79.646
(<r2>)1/2 8.924