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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CID/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 CID/Def2TZVPP
 hartrees
Energy at 0K-245.444351
Energy at 298.15K 
HF Energy-244.686185
Nuclear repulsion energy164.389418
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 CID/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' 3422 3422 0.41      
2 A' 3396 3396 0.26      
3 A' 3378 3378 1.21      
4 A' 1716 1716 13.67      
5 A' 1570 1570 39.26      
6 A' 1490 1490 13.07      
7 A' 1335 1335 9.57      
8 A' 1243 1243 20.22      
9 A' 1190 1190 10.62      
10 A' 1092 1092 2.03      
11 A' 1024 1024 46.89      
12 A' 977 977 6.36      
13 A' 968 968 2.01      
14 A" 996 996 4.77      
15 A" 970 970 0.37      
16 A" 848 848 63.20      
17 A" 686 686 1.88      
18 A" 639 639 14.78      

Unscaled Zero Point Vibrational Energy (zpe) 13470.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13470.2 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 CID/Def2TZVPP
ABC
0.33740 0.32946 0.16669

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.116 0.366 0.000
C2 0.602 -0.956 0.000
C3 0.000 1.110 0.000
N4 -0.686 -0.967 0.000
O5 -1.074 0.336 0.000
H6 2.131 0.691 0.000
H7 1.132 -1.885 0.000
H8 -0.177 2.163 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41801.34132.24142.19061.06562.25042.2137
C21.41802.15181.28862.11692.24681.06913.2146
C31.34132.15182.18701.32382.17173.20131.0677
N42.24141.28862.18701.35973.26852.03683.1708
O52.19062.11691.32381.35973.22483.13072.0352
H61.06562.24682.17173.26853.22482.76222.7370
H72.25041.06913.20132.03683.13072.76224.2537
H82.21373.21461.06773.17082.03522.73704.2537

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.721 C1 C2 H7 129.053
C1 C3 O5 110.558 C1 C3 H8 133.211
C2 C1 C3 102.451 C2 C1 H6 128.998
C2 N4 O5 106.107 C3 C1 H6 128.551
C3 O5 N4 109.163 N4 C2 H7 119.225
O5 C3 H8 116.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability