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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-245.590286
Energy at 298.15K 
HF Energy-244.681778
Nuclear repulsion energy162.263951
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/Def2TZVPP
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' 3332 3170 0.57 124.21 0.09 0.17
2 A' 3308 3147 0.86 41.26 0.67 0.80
3 A' 3293 3134 0.20 87.16 0.38 0.55
4 A' 1575 1499 7.10 8.08 0.06 0.11
5 A' 1453 1382 25.78 18.39 0.36 0.53
6 A' 1398 1330 2.47 5.96 0.06 0.11
7 A' 1232 1173 4.12 14.27 0.06 0.11
8 A' 1180 1123 17.32 2.89 0.51 0.68
9 A' 1139 1083 5.62 11.63 0.07 0.13
10 A' 1054 1003 6.63 3.37 0.70 0.82
11 A' 954 908 26.04 6.77 0.14 0.25
12 A' 920 875 2.31 4.50 0.59 0.74
13 A' 911 866 5.60 0.31 0.42 0.60
14 A" 897 854 3.38 0.48 0.75 0.86
15 A" 856 814 7.20 0.03 0.75 0.86
16 A" 786 748 63.81 0.06 0.75 0.86
17 A" 654 622 0.54 0.21 0.75 0.86
18 A" 619 589 11.03 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12780.0 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 12160.2 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/Def2TZVPP
ABC
0.32685 0.32326 0.16252

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 0.361 0.000
C2 0.624 -0.958 0.000
C3 0.000 1.126 0.000
N4 -0.699 -0.983 0.000
O5 -1.091 0.340 0.000
H6 2.148 0.693 0.000
H7 1.155 -1.894 0.000
H8 -0.187 2.184 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41131.36182.26672.21861.07372.25522.2471
C21.41132.17461.32272.15092.24661.07643.2447
C31.36182.17462.22081.34482.19113.23281.0751
N42.26671.32272.22081.37973.30312.06533.2080
O52.21862.15091.34481.37973.25873.16802.0544
H61.07372.24662.19113.30313.25872.77112.7702
H72.25521.07643.23282.06533.16802.77114.2932
H82.24713.24471.07513.20802.05442.77024.2932

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.964 C1 C2 H7 129.566
C1 C3 O5 110.106 C1 C3 H8 134.142
C2 C1 C3 103.270 C2 C1 H6 128.891
C2 N4 O5 105.464 C3 C1 H6 127.838
C3 O5 N4 109.195 N4 C2 H7 118.470
O5 C3 H8 115.752
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability