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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-245.336792
Energy at 298.15K 
HF Energy-244.588867
Nuclear repulsion energy161.570214
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 MP2/6-31G**
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' 3379 3164 0.22 107.54 0.10 0.18
2 A' 3356 3143 0.15 42.99 0.70 0.83
3 A' 3339 3127 0.99 84.88 0.40 0.57
4 A' 1609 1507 6.11 6.80 0.12 0.21
5 A' 1489 1394 26.39 17.61 0.45 0.62
6 A' 1423 1332 2.78 4.25 0.13 0.23
7 A' 1250 1171 3.91 8.55 0.16 0.28
8 A' 1192 1116 15.79 5.09 0.56 0.72
9 A' 1154 1080 3.80 7.99 0.13 0.23
10 A' 1077 1009 5.62 4.69 0.70 0.82
11 A' 958 898 23.46 7.85 0.14 0.25
12 A' 920 862 1.77 4.86 0.65 0.79
13 A' 916 858 7.66 0.50 0.48 0.65
14 A" 863 808 9.83 2.28 0.75 0.86
15 A" 825 773 0.59 0.14 0.75 0.86
16 A" 777 728 53.33 1.45 0.75 0.86
17 A" 644 603 0.04 0.57 0.75 0.86
18 A" 603 564 11.59 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12885.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 12067.5 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 MP2/6-31G**
ABC
0.32472 0.31993 0.16116

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.366 0.000
C2 0.629 -0.957 0.000
C3 0.000 1.132 0.000
N4 -0.699 -0.993 0.000
O5 -1.098 0.339 0.000
H6 2.151 0.696 0.000
H7 1.169 -1.889 0.000
H8 -0.190 2.191 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41381.36392.27752.22631.07472.25542.2517
C21.41382.18121.32862.15882.24741.07763.2525
C31.36392.18122.23701.35382.19473.23931.0760
N42.27751.32862.23701.39063.31352.07203.2243
O52.22632.15881.35381.39063.26833.17862.0619
H61.07472.24742.19473.31353.26832.76602.7777
H72.25541.07763.23932.07203.17862.76604.3006
H82.25173.25251.07603.22432.06192.77774.3006

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.260 C1 C2 H7 129.223
C1 C3 O5 110.001 C1 C3 H8 134.359
C2 C1 C3 103.473 C2 C1 H6 128.617
C2 N4 O5 105.083 C3 C1 H6 127.911
C3 O5 N4 109.183 N4 C2 H7 118.517
O5 C3 H8 115.641
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability