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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: TPSSh/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-244.685846
Energy at 298.15K 
HF Energy-244.685846
Nuclear repulsion energy158.073247
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 TPSSh/3-21G
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' 3317 3213 0.20 107.86 0.10 0.18
2 A' 3288 3185 0.19 59.38 0.66 0.80
3 A' 3264 3162 1.47 81.75 0.40 0.57
4 A' 1546 1498 8.61 4.94 0.13 0.23
5 A' 1397 1354 27.41 15.73 0.56 0.71
6 A' 1361 1319 0.91 10.55 0.27 0.42
7 A' 1210 1172 5.66 9.45 0.24 0.39
8 A' 1146 1110 15.41 8.46 0.61 0.76
9 A' 1072 1039 1.86 8.04 0.14 0.25
10 A' 1018 986 14.56 2.72 0.50 0.67
11 A' 930 901 3.05 5.32 0.63 0.77
12 A' 883 856 0.96 1.82 0.46 0.63
13 A' 792 767 13.58 7.07 0.15 0.26
14 A" 935 905 2.63 1.91 0.75 0.86
15 A" 895 867 4.90 1.26 0.75 0.86
16 A" 803 778 82.08 1.26 0.75 0.86
17 A" 629 610 11.31 0.14 0.75 0.86
18 A" 576 558 6.68 1.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12530.4 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 12139.4 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 TPSSh/3-21G
ABC
0.31454 0.30239 0.15417

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.388 0.000
C2 0.647 -0.960 0.000
C3 0.000 1.154 0.000
N4 -0.683 -1.063 0.000
O5 -1.137 0.360 0.000
H6 2.154 0.717 0.000
H7 1.233 -1.866 0.000
H8 -0.168 2.218 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43181.36432.32132.26651.07592.25692.2426
C21.43182.21091.33352.21952.25421.07943.2807
C31.36432.21092.32001.38702.19753.26241.0770
N42.32131.33352.32001.49423.34842.07733.3214
O52.26652.21951.38701.49423.31013.25212.0957
H61.07592.25422.19753.34843.31012.74212.7643
H72.25691.07943.26242.07733.25212.74214.3178
H82.24263.28071.07703.32142.09572.76434.3178

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 114.115 C1 C2 H7 127.424
C1 C3 O5 110.930 C1 C3 H8 133.100
C2 C1 C3 104.474 C2 C1 H6 127.457
C2 N4 O5 103.279 C3 C1 H6 128.069
C3 O5 N4 107.201 N4 C2 H7 118.461
O5 C3 H8 115.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.367      
2 C 0.045      
3 C 0.133      
4 N -0.221      
5 O -0.346      
6 H 0.228      
7 H 0.262      
8 H 0.266      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.859 1.473 0.000 3.217
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.662 -0.293 0.000
y -0.293 6.451 0.000
z 0.000 0.000 1.773


<r2> (average value of r2) Å2
<r2> 79.622
(<r2>)1/2 8.923