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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-245.936474
Energy at 298.15K 
HF Energy-245.635112
Nuclear repulsion energy162.172507
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-pVTZ
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' 3306 3172 0.05 119.25 0.13 0.22
2 A' 3282 3149 0.09 54.58 0.63 0.77
3 A' 3262 3130 0.82 89.40 0.37 0.54
4 A' 1591 1526 8.51 2.83 0.06 0.11
5 A' 1460 1401 30.61 28.49 0.28 0.44
6 A' 1405 1347 5.47 2.68 0.09 0.16
7 A' 1247 1197 5.07 12.99 0.13 0.23
8 A' 1158 1111 22.32 3.42 0.50 0.66
9 A' 1127 1081 6.98 10.74 0.11 0.19
10 A' 1049 1006 6.72 2.95 0.65 0.79
11 A' 934 896 9.96 3.96 0.57 0.73
12 A' 917 879 1.17 1.04 0.55 0.71
13 A' 873 838 22.29 6.08 0.17 0.29
14 A" 917 880 5.42 0.81 0.75 0.86
15 A" 879 844 0.19 0.12 0.75 0.86
16 A" 788 756 59.01 0.17 0.75 0.86
17 A" 650 623 2.76 0.20 0.75 0.86
18 A" 612 587 13.06 0.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12727.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12210.6 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-pVTZ
ABC
0.32810 0.32130 0.16233

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

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 -0.993 0.000
O5 -1.093 0.345 0.000
H6 2.146 0.694 0.000
H7 1.160 -1.889 0.000
H8 -0.178 2.185 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41821.35602.26782.21721.07312.25562.2367
C21.41822.17321.31012.15162.25061.07673.2428
C31.35602.17322.22741.34242.18873.22931.0749
N42.26781.31012.22741.39713.30092.05723.2186
O52.21722.15161.34241.39713.25773.17332.0543
H61.07312.25062.18873.30093.25772.76482.7611
H72.25561.07673.22932.05723.17332.76484.2880
H82.23673.24281.07493.21862.05432.76114.2880

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.382 C1 C2 H7 128.884
C1 C3 O5 110.507 C1 C3 H8 133.550
C2 C1 C3 103.112 C2 C1 H6 128.679
C2 N4 O5 105.221 C3 C1 H6 128.210
C3 O5 N4 108.779 N4 C2 H7 118.734
O5 C3 H8 115.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.225      
2 C -0.084      
3 C 0.008      
4 N -0.069      
5 O -0.098      
6 H 0.158      
7 H 0.150      
8 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.512 1.489 0.000 2.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.592 -2.581 -0.005
y -2.581 -25.235 -0.000
z -0.005 -0.000 -30.196
Traceless
 xyz
x -0.876 -2.581 -0.005
y -2.581 4.159 -0.000
z -0.005 -0.000 -3.282
Polar
3z2-r2-6.565
x2-y2-3.357
xy-2.581
xz-0.005
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.536 -0.207 0.001
y -0.207 7.203 0.000
z 0.001 0.000 3.592


<r2> (average value of r2) Å2
<r2> 76.840
(<r2>)1/2 8.766