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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-245.320423
Energy at 298.15K 
HF Energy-244.585647
Nuclear repulsion energy162.090895
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 MP3/6-31G*
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' 3355 3149 0.13      
2 A' 3333 3129 0.13      
3 A' 3314 3110 1.75      
4 A' 1673 1570 6.98      
5 A' 1538 1444 29.76      
6 A' 1450 1361 8.87      
7 A' 1296 1217 7.10      
8 A' 1211 1137 18.94      
9 A' 1157 1086 8.51      
10 A' 1078 1012 3.45      
11 A' 983 923 40.18      
12 A' 943 885 5.43      
13 A' 939 881 2.45      
14 A" 885 831 9.05      
15 A" 851 799 5.37      
16 A" 781 733 48.42      
17 A" 646 607 0.60      
18 A" 603 566 17.34      

Unscaled Zero Point Vibrational Energy (zpe) 13017.6 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 12218.3 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 MP3/6-31G*
ABC
0.32825 0.32045 0.16215

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.373 0.000
C2 0.618 -0.960 0.000
C3 0.000 1.126 0.000
N4 -0.692 -0.989 0.000
O5 -1.093 0.337 0.000
H6 2.153 0.702 0.000
H7 1.162 -1.895 0.000
H8 -0.191 2.189 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42711.35472.27172.21951.07872.26862.2431
C21.42712.17651.31022.14742.26281.08173.2518
C31.35472.17652.22581.34872.19483.23751.0797
N42.27171.31022.22581.38533.30982.06383.2176
O52.21952.14741.34871.38533.26703.17322.0607
H61.07872.26282.19483.30983.26702.77962.7761
H72.26861.08173.23752.06383.17322.77964.3026
H82.24313.25181.07973.21762.06072.77614.3026

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.104 C1 C2 H7 128.934
C1 C3 O5 110.375 C1 C3 H8 133.954
C2 C1 C3 102.933 C2 C1 H6 128.588
C2 N4 O5 105.587 C3 C1 H6 128.479
C3 O5 N4 109.000 N4 C2 H7 118.961
O5 C3 H8 115.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability