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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-245.942056
Energy at 298.15K 
HF Energy-245.942056
Nuclear repulsion energy162.977244
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 B1B95/6-31G*
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' 3337 3168 0.13 108.60 0.10 0.19
2 A' 3314 3146 0.04 50.86 0.67 0.81
3 A' 3293 3126 1.93 89.71 0.39 0.56
4 A' 1647 1563 8.99 1.17 0.13 0.23
5 A' 1510 1434 32.61 28.72 0.33 0.49
6 A' 1435 1362 6.23 1.92 0.24 0.39
7 A' 1275 1211 8.23 11.21 0.25 0.40
8 A' 1190 1130 14.97 2.44 0.69 0.81
9 A' 1155 1097 8.32 10.38 0.19 0.32
10 A' 1064 1010 4.19 4.67 0.65 0.79
11 A' 958 909 34.58 5.61 0.14 0.24
12 A' 930 883 4.24 2.69 0.74 0.85
13 A' 922 876 4.01 2.25 0.74 0.85
14 A" 916 869 4.95 2.42 0.75 0.86
15 A" 879 834 0.01 0.39 0.75 0.86
16 A" 793 753 51.08 1.38 0.75 0.86
17 A" 656 623 1.48 0.48 0.75 0.86
18 A" 614 583 14.47 1.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12943.2 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 12287.0 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 B1B95/6-31G*
ABC
0.33136 0.32451 0.16395

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.364 0.000
C2 0.611 -0.955 0.000
C3 0.000 1.119 0.000
N4 -0.694 -0.980 0.000
O5 -1.083 0.339 0.000
H6 2.151 0.690 0.000
H7 1.150 -1.892 0.000
H8 -0.187 2.181 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41611.35432.26212.20791.07712.25682.2410
C21.41612.16281.30592.13242.25381.08053.2369
C31.35432.16282.21151.33492.19333.22351.0786
N42.26211.30592.21151.37573.29972.05723.2023
O52.20792.13241.33491.37573.25333.15682.0486
H61.07712.25382.19333.29973.25332.76992.7732
H72.25681.08053.22352.05723.15682.76994.2874
H82.24103.23691.07863.20232.04862.77324.2874

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.345 C1 C2 H7 128.861
C1 C3 O5 110.371 C1 C3 H8 133.872
C2 C1 C3 102.624 C2 C1 H6 128.864
C2 N4 O5 105.323 C3 C1 H6 128.512
C3 O5 N4 109.338 N4 C2 H7 118.794
O5 C3 H8 115.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.275      
2 C 0.031      
3 C 0.138      
4 N -0.149      
5 O -0.322      
6 H 0.184      
7 H 0.192      
8 H 0.200      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.526 1.521 0.000 2.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.941 -2.460 0.000
y -2.460 -24.469 0.000
z 0.000 0.000 -29.461
Traceless
 xyz
x -0.976 -2.460 0.000
y -2.460 4.232 0.000
z 0.000 0.000 -3.256
Polar
3z2-r2-6.513
x2-y2-3.472
xy-2.460
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.900 -0.233 0.000
y -0.233 6.512 0.000
z 0.000 0.000 2.436


<r2> (average value of r2) Å2
<r2> 75.874
(<r2>)1/2 8.711