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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-245.814663
Energy at 298.15K 
HF Energy-245.565277
Nuclear repulsion energy161.449181
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/cc-pVDZ
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' 3316 3176 0.10 120.53 0.11 0.19
2 A' 3292 3153 0.15 53.68 0.68 0.81
3 A' 3272 3133 0.81 92.88 0.39 0.56
4 A' 1597 1530 7.93 2.48 0.06 0.11
5 A' 1473 1411 30.42 26.86 0.34 0.51
6 A' 1400 1341 4.97 2.66 0.12 0.21
7 A' 1237 1185 6.42 12.00 0.20 0.33
8 A' 1152 1103 20.96 2.59 0.74 0.85
9 A' 1127 1079 7.15 10.43 0.17 0.29
10 A' 1041 997 7.11 4.63 0.69 0.82
11 A' 930 890 10.00 4.59 0.60 0.75
12 A' 912 874 0.59 1.13 0.43 0.60
13 A' 882 844 22.36 5.47 0.16 0.27
14 A" 901 863 4.84 1.82 0.75 0.86
15 A" 864 828 0.07 0.22 0.75 0.86
16 A" 783 750 48.93 1.14 0.75 0.86
17 A" 646 619 2.19 0.37 0.75 0.86
18 A" 610 584 12.93 1.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12716.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12178.8 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/cc-pVDZ
ABC
0.32483 0.31884 0.16090

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.133 0.366 0.000
C2 0.619 -0.964 0.000
C3 0.000 1.129 0.000
N4 -0.699 -0.992 0.000
O5 -1.095 0.346 0.000
H6 2.167 0.696 0.000
H7 1.161 -1.908 0.000
H8 -0.185 2.200 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42611.36612.28092.22831.08482.27412.2582
C21.42612.18241.31852.15672.26961.08833.2640
C31.36612.18242.23311.34642.20963.25101.0864
N42.28091.31852.23311.39453.32612.07333.2325
O52.22832.15671.34641.39453.28043.18812.0654
H61.08482.26962.20963.32613.28042.79142.7914
H72.27411.08833.25102.07333.18812.79144.3222
H82.25823.26401.08643.23252.06542.79144.3222

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.360 C1 C2 H7 128.999
C1 C3 O5 110.465 C1 C3 H8 133.752
C2 C1 C3 102.798 C2 C1 H6 128.845
C2 N4 O5 105.267 C3 C1 H6 128.356
C3 O5 N4 109.110 N4 C2 H7 118.640
O5 C3 H8 115.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.153      
2 C 0.122      
3 C 0.203      
4 N -0.102      
5 O -0.147      
6 H 0.010      
7 H 0.027      
8 H 0.039      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.388 1.434 0.000 2.786
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.492 -2.437 -0.004
y -2.437 -25.083 0.000
z -0.004 0.000 -29.943
Traceless
 xyz
x -0.980 -2.437 -0.004
y -2.437 4.135 0.000
z -0.004 0.000 -3.155
Polar
3z2-r2-6.311
x2-y2-3.410
xy-2.437
xz-0.004
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.073 -0.283 0.000
y -0.283 6.810 0.000
z 0.000 0.000 2.659


<r2> (average value of r2) Å2
<r2> 77.311
(<r2>)1/2 8.793