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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-246.021373
Energy at 298.15K 
HF Energy-246.021373
Nuclear repulsion energy162.662958
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 B3PW91/TZVP
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' 3296 3178 0.32 117.56 0.11 0.19
2 A' 3271 3155 0.37 54.05 0.63 0.77
3 A' 3250 3134 0.54 87.62 0.36 0.53
4 A' 1610 1552 9.86 2.43 0.07 0.13
5 A' 1476 1423 31.10 36.98 0.24 0.39
6 A' 1408 1358 6.79 2.55 0.16 0.28
7 A' 1256 1211 6.82 13.82 0.14 0.25
8 A' 1161 1119 24.29 2.89 0.48 0.65
9 A' 1132 1092 10.08 11.33 0.11 0.20
10 A' 1048 1011 6.85 2.74 0.61 0.76
11 A' 938 904 10.77 3.99 0.57 0.73
12 A' 924 891 0.27 1.85 0.61 0.76
13 A' 902 870 27.50 5.34 0.18 0.31
14 A" 901 869 8.99 1.48 0.75 0.86
15 A" 873 842 0.05 0.03 0.75 0.86
16 A" 783 755 63.96 0.24 0.75 0.86
17 A" 647 624 1.33 0.25 0.75 0.86
18 A" 607 585 13.18 0.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12741.0 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 12286.1 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 B3PW91/TZVP
ABC
0.33028 0.32311 0.16333

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.123 0.366 0.000
C2 0.613 -0.957 0.000
C3 0.000 1.122 0.000
N4 -0.691 -0.986 0.000
O5 -1.088 0.342 0.000
H6 2.149 0.692 0.000
H7 1.154 -1.892 0.000
H8 -0.182 2.185 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41801.35372.26242.21091.07672.25852.2384
C21.41802.16741.30462.14022.25411.08033.2408
C31.35372.16742.21781.33812.19153.22741.0784
N42.26241.30462.21781.38573.29902.05593.2110
O52.21092.14021.33811.38573.25563.16512.0532
H61.07672.25412.19153.29903.25562.76982.7675
H72.25851.08033.22742.05593.16512.76984.2902
H82.23843.24081.07843.21102.05322.76754.2902

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.334 C1 C2 H7 128.873
C1 C3 O5 110.433 C1 C3 H8 133.634
C2 C1 C3 102.854 C2 C1 H6 128.741
C2 N4 O5 105.372 C3 C1 H6 128.405
C3 O5 N4 109.006 N4 C2 H7 118.794
O5 C3 H8 115.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.060      
2 C -0.189      
3 C -0.090      
4 N -0.034      
5 O -0.070      
6 H 0.155      
7 H 0.142      
8 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.643 1.566 0.000 3.072
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.625 -2.665 0.000
y -2.665 -25.025 0.000
z 0.000 0.000 -30.059
Traceless
 xyz
x -1.083 -2.665 0.000
y -2.665 4.317 0.000
z 0.000 0.000 -3.234
Polar
3z2-r2-6.467
x2-y2-3.600
xy-2.665
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.574 -0.162 0.000
y -0.162 7.115 0.000
z 0.000 0.000 3.756


<r2> (average value of r2) Å2
<r2> 76.462
(<r2>)1/2 8.744