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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-245.358493
Energy at 298.15K 
HF Energy-244.598413
Nuclear repulsion energy162.023097
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 MP3/6-31+G**
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' 3392 3157 0.12      
2 A' 3370 3136 0.28      
3 A' 3353 3120 1.25      
4 A' 1665 1550 9.76      
5 A' 1534 1427 32.55      
6 A' 1449 1348 7.27      
7 A' 1295 1205 7.15      
8 A' 1204 1121 19.74      
9 A' 1152 1072 9.08      
10 A' 1074 1000 4.02      
11 A' 978 910 40.81      
12 A' 939 874 6.94      
13 A' 934 869 1.11      
14 A" 884 822 10.89      
15 A" 842 784 10.77      
16 A" 773 719 57.48      
17 A" 635 591 0.52      
18 A" 584 543 15.80      

Unscaled Zero Point Vibrational Energy (zpe) 13029.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 12123.5 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 MP3/6-31+G**
ABC
0.32786 0.32010 0.16197

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 0.373 0.000
C2 0.619 -0.962 0.000
C3 0.000 1.128 0.000
N4 -0.692 -0.990 0.000
O5 -1.094 0.338 0.000
H6 2.149 0.701 0.000
H7 1.159 -1.893 0.000
H8 -0.187 2.186 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42841.35692.27282.22111.07342.26592.2396
C21.42842.18001.31132.15012.26041.07603.2498
C31.35692.18002.22781.34942.19093.23571.0744
N42.27281.31132.22781.38673.30632.05983.2155
O52.22112.15011.34941.38673.26303.17022.0587
H61.07342.26042.19093.30633.26302.77702.7678
H72.26591.07603.23572.05983.17022.77704.2954
H82.23963.24981.07443.21552.05872.76784.2954

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.037 C1 C2 H7 129.030
C1 C3 O5 110.320 C1 C3 H8 133.857
C2 C1 C3 102.983 C2 C1 H6 128.687
C2 N4 O5 105.641 C3 C1 H6 128.330
C3 O5 N4 109.020 N4 C2 H7 118.933
O5 C3 H8 115.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability