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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-246.001462
Energy at 298.15K 
HF Energy-246.001462
Nuclear repulsion energy163.328118
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 B1B95/6-311G**
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' 3313 3181 0.08 111.85 0.13 0.22
2 A' 3287 3156 0.06 53.65 0.65 0.79
3 A' 3265 3135 1.21 89.02 0.39 0.56
4 A' 1631 1566 9.72 1.35 0.13 0.24
5 A' 1497 1437 32.63 31.76 0.28 0.43
6 A' 1421 1364 6.62 2.24 0.24 0.38
7 A' 1262 1212 9.12 11.77 0.21 0.35
8 A' 1175 1129 19.76 1.57 0.67 0.81
9 A' 1144 1098 9.54 11.34 0.18 0.30
10 A' 1054 1012 5.37 3.63 0.63 0.77
11 A' 949 911 35.71 4.90 0.19 0.32
12 A' 931 894 4.70 4.04 0.67 0.80
13 A' 924 887 2.61 1.03 0.73 0.84
14 A" 920 883 5.20 1.30 0.75 0.86
15 A" 890 855 0.59 0.11 0.75 0.86
16 A" 797 765 60.54 0.47 0.75 0.86
17 A" 657 631 1.53 0.32 0.75 0.86
18 A" 616 591 15.04 0.91 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12866.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 12353.0 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 B1B95/6-311G**
ABC
0.33281 0.32584 0.16464

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.364 0.000
C2 0.609 -0.955 0.000
C3 0.000 1.117 0.000
N4 -0.692 -0.977 0.000
O5 -1.081 0.339 0.000
H6 2.146 0.690 0.000
H7 1.144 -1.892 0.000
H8 -0.183 2.178 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41531.35132.25582.20311.07442.25582.2346
C21.41532.16011.30152.12912.25111.07843.2317
C31.35132.16012.20561.33182.18773.21901.0763
N42.25581.30152.20561.37253.29122.05123.1955
O52.20312.12911.33181.37253.24563.15082.0460
H61.07442.25112.18773.29123.24562.76952.7634
H72.25581.07843.21902.05123.15082.76954.2805
H82.23463.23171.07633.19552.04602.76344.2805

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.194 C1 C2 H7 129.048
C1 C3 O5 110.383 C1 C3 H8 133.683
C2 C1 C3 102.642 C2 C1 H6 128.911
C2 N4 O5 105.505 C3 C1 H6 128.446
C3 O5 N4 109.276 N4 C2 H7 118.758
O5 C3 H8 115.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.344      
2 C 0.092      
3 C 0.174      
4 N -0.139      
5 O -0.191      
6 H 0.126      
7 H 0.136      
8 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.539 1.514 0.000 2.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.345 -2.534 0.000
y -2.534 -24.750 0.000
z 0.000 0.000 -29.831
Traceless
 xyz
x -1.055 -2.534 0.000
y -2.534 4.338 0.000
z 0.000 0.000 -3.283
Polar
3z2-r2-6.567
x2-y2-3.595
xy-2.534
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.125 -0.229 0.000
y -0.229 6.745 0.000
z 0.000 0.000 2.990


<r2> (average value of r2) Å2
<r2> 75.850
(<r2>)1/2 8.709