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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-245.313288
Energy at 298.15K 
HF Energy-244.582901
Nuclear repulsion energy161.466845
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' 3347 3156 0.33 108.84 0.10 0.18
2 A' 3326 3136 0.26 41.15 0.74 0.85
3 A' 3308 3120 0.74 85.02 0.40 0.57
4 A' 1604 1513 6.20 6.73 0.12 0.21
5 A' 1484 1400 27.21 17.62 0.44 0.61
6 A' 1418 1337 2.98 4.15 0.12 0.22
7 A' 1250 1179 4.29 8.36 0.17 0.29
8 A' 1193 1125 17.65 4.95 0.58 0.73
9 A' 1153 1087 4.09 7.85 0.13 0.23
10 A' 1077 1016 6.26 4.62 0.70 0.82
11 A' 957 902 24.19 7.83 0.15 0.26
12 A' 922 869 1.59 4.83 0.64 0.78
13 A' 915 863 8.09 0.57 0.41 0.59
14 A" 852 803 12.14 2.36 0.75 0.86
15 A" 810 764 0.20 0.09 0.75 0.86
16 A" 771 727 57.44 1.51 0.75 0.86
17 A" 644 608 0.03 0.57 0.75 0.86
18 A" 602 568 12.86 0.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12816.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 12085.7 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
0.32439 0.31959 0.16098

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 -0.994 0.000
O5 -1.098 0.339 0.000
H6 2.156 0.698 0.000
H7 1.171 -1.894 0.000
H8 -0.194 2.195 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41411.36392.27802.22671.07962.26032.2571
C21.41412.18171.32872.15932.25141.08233.2577
C31.36392.18172.23791.35442.19923.24461.0805
N42.27801.32872.23791.39143.31852.07543.2285
O52.22672.15931.35441.39143.27363.18352.0642
H61.07962.25142.19923.31853.27362.77242.7866
H72.26031.08233.24462.07543.18352.77244.3107
H82.25713.25771.08053.22852.06422.78664.3107

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.270 C1 C2 H7 129.273
C1 C3 O5 109.998 C1 C3 H8 134.525
C2 C1 C3 103.487 C2 C1 H6 128.571
C2 N4 O5 105.070 C3 C1 H6 127.942
C3 O5 N4 109.175 N4 C2 H7 118.457
O5 C3 H8 115.477
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability