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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP/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 B2PLYP/6-31G
 hartrees
Energy at 0K-245.625498
Energy at 298.15K 
HF Energy-245.444898
Nuclear repulsion energy158.346506
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 B2PLYP/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' 3350 3350 0.31 126.52 0.12 0.21
2 A' 3325 3325 0.44 43.71 0.59 0.74
3 A' 3307 3307 0.86 83.75 0.47 0.64
4 A' 1574 1574 8.25 4.33 0.12 0.22
5 A' 1442 1442 28.84 25.36 0.47 0.64
6 A' 1385 1385 3.63 5.96 0.14 0.25
7 A' 1241 1241 6.77 8.78 0.24 0.39
8 A' 1159 1159 17.00 8.87 0.56 0.72
9 A' 1093 1093 1.36 7.32 0.15 0.26
10 A' 1037 1037 16.66 3.39 0.49 0.66
11 A' 932 932 4.21 5.53 0.63 0.77
12 A' 900 900 1.48 1.62 0.56 0.71
13 A' 707 707 16.40 10.18 0.17 0.29
14 A" 908 908 7.79 2.69 0.75 0.86
15 A" 879 879 0.50 0.30 0.75 0.86
16 A" 791 791 69.64 1.21 0.75 0.86
17 A" 626 626 8.41 0.04 0.75 0.86
18 A" 583 583 9.01 1.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12619.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12619.1 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 B2PLYP/6-31G
ABC
0.31643 0.30276 0.15472

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 0.383 0.000
C2 0.645 -0.965 0.000
C3 0.000 1.158 0.000
N4 -0.685 -1.055 0.000
O5 -1.130 0.359 0.000
H6 2.153 0.709 0.000
H7 1.221 -1.878 0.000
H8 -0.178 2.220 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43191.36742.31292.25681.07682.26332.2525
C21.43192.21891.33312.21502.25311.07903.2894
C31.36742.21892.31581.38332.19963.27201.0766
N42.31291.33312.31581.48243.34132.07563.3131
O52.25682.21501.38331.48243.30173.24512.0896
H61.07682.25312.19963.34133.30172.75002.7778
H72.26331.07903.27202.07563.24512.75004.3296
H82.25253.28941.07663.31312.08962.77784.3296

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 113.493 C1 C2 H7 128.135
C1 C3 O5 110.261 C1 C3 H8 133.997
C2 C1 C3 104.845 C2 C1 H6 127.248
C2 N4 O5 103.631 C3 C1 H6 127.907
C3 O5 N4 107.770 N4 C2 H7 118.372
O5 C3 H8 115.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.196      
2 C -0.012      
3 C 0.138      
4 N -0.122      
5 O -0.396      
6 H 0.181      
7 H 0.200      
8 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.243 1.553 0.000 3.595
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.635 -2.605 -0.002
y -2.605 -25.100 0.000
z -0.002 0.000 -30.190
Traceless
 xyz
x -1.990 -2.605 -0.002
y -2.605 4.812 0.000
z -0.002 0.000 -2.822
Polar
3z2-r2-5.645
x2-y2-4.535
xy-2.605
xz-0.002
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.010 -0.274 0.000
y -0.274 6.694 0.000
z 0.000 0.000 2.132


<r2> (average value of r2) Å2
<r2> 79.738
(<r2>)1/2 8.930