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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: QCISD/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/aug-cc-pVDZ
 hartrees
Energy at 0K-245.414502
Energy at 298.15K 
HF Energy-244.617816
Nuclear repulsion energy160.650670
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/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' 3312 3209 0.04      
2 A' 3288 3185 0.09      
3 A' 3268 3166 1.27      
4 A' 1615 1564 12.36      
5 A' 1492 1446 36.18      
6 A' 1397 1354 8.16      
7 A' 1244 1205 5.73      
8 A' 1151 1115 21.29      
9 A' 1106 1072 8.89      
10 A' 1041 1009 6.01      
11 A' 924 895 12.61      
12 A' 906 877 1.24      
13 A' 882 854 23.61      
14 A" 892 864 8.25      
15 A" 863 836 2.01      
16 A" 766 742 55.91      
17 A" 629 609 2.50      
18 A" 590 572 14.01      

Unscaled Zero Point Vibrational Energy (zpe) 12683.1 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 12286.1 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/aug-cc-pVDZ
ABC
0.32229 0.31487 0.15927

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.137 0.374 0.000
C2 0.621 -0.970 0.000
C3 0.000 1.135 0.000
N4 -0.697 -0.999 0.000
O5 -1.103 0.346 0.000
H6 2.172 0.707 0.000
H7 1.167 -1.914 0.000
H8 -0.184 2.207 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.44001.36802.29132.24041.08712.28842.2599
C21.44002.19461.31822.16892.28431.09043.2781
C31.36802.19462.24501.35622.21383.26441.0885
N42.29131.31822.24501.40513.33802.07613.2476
O52.24042.16891.35621.40513.29503.20302.0762
H61.08712.28432.21383.33803.29502.80712.7936
H72.28841.09043.26442.07613.20302.80714.3374
H82.25993.27811.08853.24762.07622.79364.3374

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.272 C1 C2 H7 128.960
C1 C3 O5 110.653 C1 C3 H8 133.520
C2 C1 C3 102.773 C2 C1 H6 128.825
C2 N4 O5 105.536 C3 C1 H6 128.402
C3 O5 N4 108.767 N4 C2 H7 118.768
O5 C3 H8 115.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability