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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-311+G(3df,2p)
 hartrees
Energy at 0K-245.580369
Energy at 298.15K 
HF Energy-244.672527
Nuclear repulsion energy163.077009
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 CCD/6-311+G(3df,2p)
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' 3324 3135 0.28      
2 A' 3299 3111 0.38      
3 A' 3282 3095 0.83      
4 A' 1645 1551 10.28      
5 A' 1510 1424 31.27      
6 A' 1435 1353 9.17      
7 A' 1283 1210 7.49      
8 A' 1202 1134 18.88      
9 A' 1146 1081 9.08      
10 A' 1058 998 2.66      
11 A' 993 937 41.23      
12 A' 942 888 5.20      
13 A' 936 882 1.75      
14 A" 931 878 6.68      
15 A" 903 851 0.06      
16 A" 797 752 60.01      
17 A" 658 621 1.06      
18 A" 617 582 13.05      

Unscaled Zero Point Vibrational Energy (zpe) 12980.6 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 12242.0 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 CCD/6-311+G(3df,2p)
ABC
0.33185 0.32454 0.16408

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.124 0.368 0.000
C2 0.611 -0.961 0.000
C3 0.000 1.119 0.000
N4 -0.692 -0.976 0.000
O5 -1.084 0.337 0.000
H6 2.146 0.698 0.000
H7 1.144 -1.897 0.000
H8 -0.184 2.179 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42471.35112.25872.20761.07422.26582.2336
C21.42472.16761.30252.13452.26011.07763.2391
C31.35112.16762.20601.33652.18683.22591.0761
N42.25871.30252.20601.37013.29432.05373.1955
O52.20762.13451.33651.37013.24993.15512.0501
H61.07422.26012.18683.29433.24992.78202.7611
H72.26581.07763.22592.05373.15512.78204.2874
H82.23363.23911.07613.19552.05012.76114.2874

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 111.752 C1 C2 H7 129.264
C1 C3 O5 110.447 C1 C3 H8 133.602
C2 C1 C3 102.651 C2 C1 H6 128.955
C2 N4 O5 105.977 C3 C1 H6 128.394
C3 O5 N4 109.172 N4 C2 H7 118.984
O5 C3 H8 115.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability