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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-245.373875
Energy at 298.15K 
HF Energy-244.595871
Nuclear repulsion energy161.485339
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 MP2=FULL/6-31+G**
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' 3374 3169 0.41 132.38 0.11 0.19
2 A' 3353 3149 0.77 38.19 0.75 0.85
3 A' 3338 3135 0.32 88.23 0.44 0.61
4 A' 1597 1500 8.35 11.05 0.03 0.06
5 A' 1480 1390 27.00 22.66 0.37 0.54
6 A' 1413 1327 2.80 8.18 0.05 0.09
7 A' 1246 1170 4.97 13.41 0.05 0.09
8 A' 1184 1112 18.98 4.48 0.34 0.51
9 A' 1146 1077 4.24 12.00 0.05 0.09
10 A' 1070 1005 7.13 2.86 0.69 0.82
11 A' 948 891 24.45 7.55 0.17 0.28
12 A' 916 860 1.81 5.18 0.46 0.63
13 A' 910 855 9.08 1.19 0.19 0.32
14 A" 851 799 15.79 0.06 0.75 0.86
15 A" 804 755 0.03 0.64 0.75 0.86
16 A" 766 720 74.10 0.04 0.75 0.86
17 A" 633 595 0.05 0.37 0.75 0.86
18 A" 583 548 11.41 0.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12805.9 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 12027.3 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 MP2=FULL/6-31+G**
ABC
0.32434 0.31963 0.16098

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 0.365 0.000
C2 0.630 -0.958 0.000
C3 0.000 1.133 0.000
N4 -0.699 -0.994 0.000
O5 -1.098 0.340 0.000
H6 2.151 0.697 0.000
H7 1.167 -1.891 0.000
H8 -0.192 2.191 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41421.36472.27712.22661.07482.25702.2530
C21.41422.18391.32892.16122.24791.07703.2547
C31.36472.18392.23881.35462.19423.24181.0755
N42.27711.32892.23881.39253.31332.07053.2254
O52.22662.16121.35461.39253.26833.17982.0615
H61.07482.24792.19423.31333.26832.76912.7780
H72.25701.07703.24182.07053.17982.76914.3029
H82.25303.25471.07553.22542.06152.77804.3029

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.187 C1 C2 H7 129.422
C1 C3 O5 109.933 C1 C3 H8 134.489
C2 C1 C3 103.591 C2 C1 H6 128.634
C2 N4 O5 105.130 C3 C1 H6 127.775
C3 O5 N4 109.159 N4 C2 H7 118.391
O5 C3 H8 115.578
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability