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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/6-311+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 B1B95/6-311+G(3df,2p)
 hartrees
Energy at 0K-246.025571
Energy at 298.15K 
HF Energy-246.025571
Nuclear repulsion energy163.609924
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 B1B95/6-311+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' 3306 3306 0.16 117.31 0.10 0.19
2 A' 3279 3279 0.10 53.84 0.60 0.75
3 A' 3259 3259 0.88 88.24 0.36 0.53
4 A' 1627 1627 11.17 2.43 0.04 0.07
5 A' 1492 1492 32.17 39.34 0.18 0.30
6 A' 1423 1423 7.25 3.14 0.11 0.20
7 A' 1267 1267 7.51 16.53 0.10 0.17
8 A' 1179 1179 17.95 1.50 0.44 0.61
9 A' 1145 1145 8.82 14.57 0.09 0.17
10 A' 1054 1054 4.70 2.65 0.57 0.73
11 A' 952 952 33.65 4.44 0.14 0.24
12 A' 931 931 5.17 2.93 0.55 0.71
13 A' 924 924 2.73 0.97 0.72 0.84
14 A" 931 931 5.74 0.30 0.75 0.86
15 A" 895 895 0.10 0.54 0.75 0.86
16 A" 792 792 61.05 0.12 0.75 0.86
17 A" 659 659 1.30 0.20 0.75 0.86
18 A" 617 617 13.36 0.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12865.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12865.4 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 B1B95/6-311+G(3df,2p)
ABC
0.33383 0.32710 0.16521

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.119 0.362 0.000
C2 0.608 -0.955 0.000
C3 0.000 1.115 0.000
N4 -0.691 -0.975 0.000
O5 -1.079 0.340 0.000
H6 2.141 0.689 0.000
H7 1.143 -1.890 0.000
H8 -0.180 2.175 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41281.34882.25032.19871.07282.25192.2302
C21.41282.15741.29912.12692.24761.07673.2274
C31.34882.15742.20101.32892.18323.21451.0750
N42.25031.29912.20101.37073.28442.04903.1907
O52.19872.12691.32891.37073.23943.14762.0435
H61.07282.24762.18323.28443.23942.76492.7562
H72.25191.07673.21452.04903.14762.76494.2742
H82.23023.22741.07503.19072.04352.75624.2742

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.087 C1 C2 H7 129.024
C1 C3 O5 110.390 C1 C3 H8 133.567
C2 C1 C3 102.713 C2 C1 H6 128.929
C2 N4 O5 105.589 C3 C1 H6 128.358
C3 O5 N4 109.222 N4 C2 H7 118.889
O5 C3 H8 116.043
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.202      
2 C 0.346      
3 C 0.301      
4 N -0.567      
5 O -0.441      
6 H 0.181      
7 H 0.189      
8 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.542 1.519 0.000 2.961
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.440 -2.652 0.000
y -2.652 -25.095 0.000
z 0.000 0.000 -30.086
Traceless
 xyz
x -0.850 -2.652 0.000
y -2.652 4.168 0.000
z 0.000 0.000 -3.319
Polar
3z2-r2-6.637
x2-y2-3.345
xy-2.652
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.918 -0.084 0.000
y -0.084 7.540 0.000
z 0.000 0.000 4.383


<r2> (average value of r2) Å2
<r2> 75.795
(<r2>)1/2 8.706