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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBEultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-245.843295
Energy at 298.15K 
HF Energy-245.843295
Nuclear repulsion energy161.387685
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 PBEPBEultrafine/6-311+G(3df,2p)
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' 3209 3209 0.04 132.87 0.11 0.19
2 A' 3183 3183 0.11 64.68 0.59 0.75
3 A' 3161 3161 0.55 94.03 0.36 0.53
4 A' 1544 1544 8.58 4.03 0.01 0.01
5 A' 1421 1421 26.86 31.15 0.22 0.37
6 A' 1356 1356 4.03 5.14 0.03 0.05
7 A' 1204 1204 4.33 18.04 0.08 0.15
8 A' 1113 1113 20.20 3.46 0.43 0.60
9 A' 1094 1094 6.45 13.50 0.05 0.10
10 A' 1017 1017 9.31 2.84 0.71 0.83
11 A' 902 902 8.10 2.28 0.73 0.84
12 A' 891 891 0.64 0.93 0.61 0.76
13 A' 841 841 20.36 5.60 0.12 0.22
14 A" 875 875 6.22 0.22 0.75 0.86
15 A" 833 833 0.42 0.48 0.75 0.86
16 A" 751 751 62.04 0.12 0.75 0.86
17 A" 632 632 1.63 0.18 0.75 0.86
18 A" 596 596 12.46 0.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12311.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12311.2 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
0.32473 0.31861 0.16082

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.366 0.000
C2 0.621 -0.961 0.000
C3 0.000 1.129 0.000
N4 -0.695 -0.997 0.000
O5 -1.098 0.347 0.000
H6 2.161 0.696 0.000
H7 1.168 -1.901 0.000
H8 -0.183 2.199 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42151.36322.27772.22771.08332.26772.2544
C21.42152.18121.31682.16082.26271.08743.2614
C31.36322.18122.23731.34812.20413.24801.0854
N42.27771.31682.23731.40373.32062.07123.2374
O52.22772.16081.34811.40373.27793.19272.0659
H61.08332.26272.20413.32063.27792.78082.7843
H72.26771.08743.24802.07123.19272.78084.3174
H82.25443.26141.08543.23742.06592.78434.3174

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.505 C1 C2 H7 128.845
C1 C3 O5 110.493 C1 C3 H8 133.736
C2 C1 C3 103.103 C2 C1 H6 128.695
C2 N4 O5 105.129 C3 C1 H6 128.202
C3 O5 N4 108.771 N4 C2 H7 118.651
O5 C3 H8 115.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 C 0.356      
3 C 0.301      
4 N -0.551      
5 O -0.422      
6 H 0.139      
7 H 0.149      
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
  2.499 1.504 0.000 2.917
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.747 -2.663 0.000
y -2.663 -25.481 0.000
z 0.000 0.000 -30.441
Traceless
 xyz
x -0.786 -2.663 0.000
y -2.663 4.113 0.000
z 0.000 0.000 -3.327
Polar
3z2-r2-6.653
x2-y2-3.266
xy-2.663
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.310 -0.047 0.000
y -0.047 8.048 0.000
z 0.000 0.000 4.591


<r2> (average value of r2) Å2
<r2> 77.562
(<r2>)1/2 8.807