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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-245.945116
Energy at 298.15K 
HF Energy-245.644607
Nuclear repulsion energy162.210112
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/Def2TZVPP
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' 3309 3309 0.09 123.78 0.10 0.18
2 A' 3286 3286 0.19 52.05 0.65 0.79
3 A' 3266 3266 0.65 88.82 0.36 0.53
4 A' 1590 1590 9.00 3.32 0.04 0.08
5 A' 1459 1459 31.12 31.00 0.26 0.41
6 A' 1405 1405 5.18 3.17 0.05 0.10
7 A' 1249 1249 5.05 14.12 0.11 0.19
8 A' 1158 1158 22.43 3.74 0.41 0.58
9 A' 1126 1126 7.43 11.55 0.08 0.15
10 A' 1049 1049 6.79 2.78 0.64 0.78
11 A' 935 935 10.20 3.83 0.61 0.76
12 A' 917 917 1.12 1.04 0.52 0.68
13 A' 874 874 22.70 6.42 0.16 0.28
14 A" 915 915 5.56 0.83 0.75 0.86
15 A" 878 878 0.60 0.15 0.75 0.86
16 A" 790 790 62.14 0.03 0.75 0.86
17 A" 649 649 2.48 0.15 0.75 0.86
18 A" 611 611 12.61 0.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12732.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12732.5 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/Def2TZVPP
ABC
0.32828 0.32142 0.16241

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.366 0.000
C2 0.618 -0.959 0.000
C3 0.000 1.125 0.000
N4 -0.691 -0.992 0.000
O5 -1.092 0.345 0.000
H6 2.146 0.694 0.000
H7 1.159 -1.890 0.000
H8 -0.179 2.185 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41831.35612.26672.21641.07332.25622.2373
C21.41832.17371.30972.15102.25081.07683.2435
C31.35612.17372.22661.34222.18883.23011.0750
N42.26671.30972.22661.39583.30002.05713.2177
O52.21642.15101.34221.39583.25703.17282.0542
H61.07332.25082.18883.30003.25702.76562.7619
H72.25621.07683.23012.05713.17282.76564.2890
H82.23733.24351.07503.21772.05422.76194.2890

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.319 C1 C2 H7 128.928
C1 C3 O5 110.452 C1 C3 H8 133.604
C2 C1 C3 103.138 C2 C1 H6 128.671
C2 N4 O5 105.279 C3 C1 H6 128.192
C3 O5 N4 108.813 N4 C2 H7 118.753
O5 C3 H8 115.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.183      
2 C -0.014      
3 C 0.052      
4 N -0.129      
5 O -0.120      
6 H 0.129      
7 H 0.124      
8 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.567 1.514 0.000 2.981
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.768 -2.647 -0.006
y -2.647 -25.379 -0.000
z -0.006 -0.000 -30.348
Traceless
 xyz
x -0.905 -2.647 -0.006
y -2.647 4.179 -0.000
z -0.006 -0.000 -3.275
Polar
3z2-r2-6.550
x2-y2-3.389
xy-2.647
xz-0.006
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.737 -0.168 0.001
y -0.168 7.363 0.000
z 0.001 0.000 3.994


<r2> (average value of r2) Å2
<r2> 76.915
(<r2>)1/2 8.770