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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP3/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 MP3/Def2TZVPP
 hartrees
Energy at 0K-245.593860
Energy at 298.15K 
HF Energy-244.684563
Nuclear repulsion energy162.979098
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 MP3/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' 3351 3351 0.33      
2 A' 3326 3326 0.36      
3 A' 3309 3309 0.95      
4 A' 1651 1651 9.28      
5 A' 1516 1516 30.44      
6 A' 1438 1438 9.36      
7 A' 1287 1287 7.14      
8 A' 1202 1202 20.70      
9 A' 1149 1149 9.10      
10 A' 1060 1060 3.58      
11 A' 984 984 38.95      
12 A' 945 945 5.21      
13 A' 938 938 2.68      
14 A" 930 930 6.11      
15 A" 904 904 0.97      
16 A" 808 808 61.66      
17 A" 658 658 1.41      
18 A" 617 617 12.85      

Unscaled Zero Point Vibrational Energy (zpe) 13035.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13035.7 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 MP3/Def2TZVPP
ABC
0.33123 0.32429 0.16386

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.369 0.000
C2 0.612 -0.961 0.000
C3 0.000 1.119 0.000
N4 -0.691 -0.978 0.000
O5 -1.086 0.338 0.000
H6 2.144 0.697 0.000
H7 1.145 -1.894 0.000
H8 -0.182 2.177 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42501.35182.25982.21031.07152.26272.2306
C21.42502.16831.30262.13772.25781.07473.2367
C31.35182.16832.20781.33762.18523.22351.0732
N42.25981.30262.20781.37393.29262.05183.1955
O52.21032.13771.33761.37393.24983.15592.0491
H61.07152.25782.18523.29263.24982.77712.7566
H72.26271.07473.22352.05183.15592.77714.2817
H82.23063.23671.07323.19552.04912.75664.2817

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.812 C1 C2 H7 129.171
C1 C3 O5 110.540 C1 C3 H8 133.475
C2 C1 C3 102.652 C2 C1 H6 128.934
C2 N4 O5 105.979 C3 C1 H6 128.414
C3 O5 N4 109.016 N4 C2 H7 119.018
O5 C3 H8 115.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability