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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: QCISD(T)/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-245.450476
Energy at 298.15K 
HF Energy-244.615325
Nuclear repulsion energy159.909841
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 QCISD(T)/aug-cc-pVDZ
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' 3288 3215        
2 A' 3264 3192        
3 A' 3245 3173        
4 A' 1574 1539        
5 A' 1457 1425        
6 A' 1374 1343        
7 A' 1217 1190        
8 A' 1130 1105        
9 A' 1093 1068        
10 A' 1029 1006        
11 A' 909 889        
12 A' 889 870        
13 A' 836 817        
14 A" 860 841        
15 A" 826 807        
16 A" 747 731        
17 A" 616 602        
18 A" 581 568        

Unscaled Zero Point Vibrational Energy (zpe) 12467.7 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 12190.9 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 QCISD(T)/aug-cc-pVDZ
ABC
0.31909 0.31227 0.15782

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.141 0.373 0.000
C2 0.626 -0.972 0.000
C3 0.000 1.140 0.000
N4 -0.701 -1.007 0.000
O5 -1.108 0.351 0.000
H6 2.178 0.706 0.000
H7 1.173 -1.918 0.000
H8 -0.183 2.215 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.44041.37522.30132.24951.08922.29102.2689
C21.44042.20321.32732.18122.28621.09233.2884
C31.37522.20322.25811.36052.22103.27521.0904
N42.30131.32732.25811.41713.35002.08333.2629
O52.24952.18121.36051.41713.30553.21702.0811
H61.08922.28622.22103.35003.30552.81032.8022
H72.29101.09233.27522.08333.21702.81034.3497
H82.26893.28841.09043.26292.08112.80224.3497

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.441 C1 C2 H7 129.014
C1 C3 O5 110.624 C1 C3 H8 133.581
C2 C1 C3 102.953 C2 C1 H6 128.785
C2 N4 O5 105.223 C3 C1 H6 128.262
C3 O5 N4 108.759 N4 C2 H7 118.545
O5 C3 H8 115.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability