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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP=FULL/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=FULL/6-31G**
 hartrees
Energy at 0K-245.807996
Energy at 298.15K 
HF Energy-245.551641
Nuclear repulsion energy161.701306
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=FULL/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' 3339 3339 0.07 109.82 0.10 0.18
2 A' 3316 3316 0.00 52.43 0.68 0.81
3 A' 3295 3295 1.50 87.70 0.39 0.56
4 A' 1615 1615 7.57 2.24 0.09 0.16
5 A' 1484 1484 31.45 26.77 0.38 0.55
6 A' 1420 1420 4.50 2.37 0.12 0.21
7 A' 1259 1259 5.46 10.77 0.23 0.37
8 A' 1172 1172 18.78 4.41 0.60 0.75
9 A' 1139 1139 6.18 9.01 0.15 0.26
10 A' 1063 1063 5.64 4.34 0.68 0.81
11 A' 934 934 9.69 4.33 0.54 0.70
12 A' 919 919 1.09 1.68 0.56 0.72
13 A' 886 886 23.59 6.32 0.17 0.29
14 A" 899 899 5.68 2.54 0.75 0.86
15 A" 861 861 0.02 0.23 0.75 0.86
16 A" 787 787 47.83 1.50 0.75 0.86
17 A" 644 644 2.10 0.39 0.75 0.86
18 A" 606 606 13.35 1.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12818.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12818.8 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=FULL/6-31G**
ABC
0.32626 0.31941 0.16140

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 0.368 0.000
C2 0.621 -0.959 0.000
C3 0.000 1.129 0.000
N4 -0.694 -0.997 0.000
O5 -1.096 0.345 0.000
H6 2.152 0.695 0.000
H7 1.167 -1.890 0.000
H8 -0.183 2.190 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42031.36002.27652.22331.07572.25832.2443
C21.42032.17791.31582.15572.25391.07923.2501
C31.36002.17792.23621.34732.19553.23621.0772
N42.27651.31582.23621.40073.31152.06423.2281
O52.22332.15571.34731.40073.26693.18022.0588
H61.07572.25392.19553.31153.26692.76632.7728
H72.25831.07923.23622.06423.18022.76634.2975
H82.24433.25011.07723.22812.05882.77284.2975

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.553 C1 C2 H7 128.727
C1 C3 O5 110.422 C1 C3 H8 133.779
C2 C1 C3 103.114 C2 C1 H6 128.579
C2 N4 O5 104.994 C3 C1 H6 128.307
C3 O5 N4 108.917 N4 C2 H7 118.720
O5 C3 H8 115.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability