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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP2/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-245.399318
Energy at 298.15K 
HF Energy-244.617579
Nuclear repulsion energy160.644910
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/daug-cc-pVDZ
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' 3326 3326 0.33 141.43 0.08 0.15
2 A' 3303 3303 0.73 38.81 0.74 0.85
3 A' 3288 3288 0.27 90.78 0.40 0.58
4 A' 1559 1559 8.31 13.05 0.03 0.06
5 A' 1449 1449 23.81 18.89 0.36 0.52
6 A' 1375 1375 2.62 10.62 0.03 0.07
7 A' 1208 1208 3.43 19.62 0.04 0.07
8 A' 1153 1153 18.03 3.23 0.41 0.58
9 A' 1121 1121 4.00 14.33 0.04 0.08
10 A' 1044 1044 8.18 3.03 0.73 0.84
11 A' 931 931 21.13 6.51 0.17 0.29
12 A' 903 903 0.75 3.58 0.38 0.55
13 A' 894 894 10.96 2.15 0.10 0.18
14 A" 878 878 5.38 0.12 0.75 0.86
15 A" 836 836 3.59 0.54 0.75 0.86
16 A" 766 766 68.25 0.11 0.75 0.86
17 A" 640 640 0.27 0.22 0.75 0.86
18 A" 607 607 10.74 0.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12639.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12639.3 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/daug-cc-pVDZ
ABC
0.32037 0.31688 0.15931

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.138 0.363 0.000
C2 0.630 -0.968 0.000
C3 0.000 1.138 0.000
N4 -0.707 -0.992 0.000
O5 -1.101 0.344 0.000
H6 2.171 0.698 0.000
H7 1.165 -1.915 0.000
H8 -0.190 2.208 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42411.37712.28902.23921.08582.27772.2730
C21.42412.19791.33732.17202.26931.08793.2794
C31.37712.19792.24411.35722.21483.26761.0864
N42.28901.33732.24411.39303.33752.08743.2411
O52.23922.17201.35721.39303.29083.19982.0744
H61.08582.26932.21483.33753.29082.80002.8016
H72.27771.08793.26762.08743.19982.80004.3394
H82.27303.27941.08643.24112.07442.80164.3394

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.937 C1 C2 H7 129.633
C1 C3 O5 109.953 C1 C3 H8 134.305
C2 C1 C3 103.358 C2 C1 H6 128.908
C2 N4 O5 105.391 C3 C1 H6 127.734
C3 O5 N4 109.361 N4 C2 H7 118.430
O5 C3 H8 115.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability