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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-311G**
 hartrees
Energy at 0K-245.442582
Energy at 298.15K 
HF Energy-244.643611
Nuclear repulsion energy162.127800
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 CCSD/6-311G**
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' 3318 3318 0.07      
2 A' 3294 3294 0.09      
3 A' 3275 3275 1.62      
4 A' 1635 1635 8.89      
5 A' 1502 1502 32.12      
6 A' 1421 1421 9.65      
7 A' 1269 1269 7.76      
8 A' 1182 1182 21.25      
9 A' 1136 1136 9.15      
10 A' 1054 1054 3.54      
11 A' 958 958 34.25      
12 A' 931 931 5.52      
13 A' 926 926 2.26      
14 A" 900 900 7.60      
15 A" 886 886 0.06      
16 A" 792 792 55.21      
17 A" 640 640 1.62      
18 A" 602 602 15.71      

Unscaled Zero Point Vibrational Energy (zpe) 12858.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12858.2 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 CCSD/6-311G**
ABC
0.32813 0.32062 0.16217

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.131 0.372 0.000
C2 0.614 -0.964 0.000
C3 0.000 1.124 0.000
N4 -0.695 -0.985 0.000
O5 -1.091 0.340 0.000
H6 2.158 0.700 0.000
H7 1.150 -1.904 0.000
H8 -0.186 2.188 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.43271.35842.27442.22171.07842.27572.2439
C21.43272.17711.30892.14632.27041.08203.2527
C31.35842.17712.22051.34352.19953.23951.0802
N42.27441.30892.22051.38233.31322.06183.2135
O52.22172.14631.34351.38233.26863.17142.0579
H61.07842.27042.19953.31323.26862.79192.7770
H72.27571.08203.23952.06183.17142.79194.3051
H82.24393.25271.08023.21352.05792.77704.3051

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.039 C1 C2 H7 129.109
C1 C3 O5 110.625 C1 C3 H8 133.573
C2 C1 C3 102.493 C2 C1 H6 128.868
C2 N4 O5 105.749 C3 C1 H6 128.639
C3 O5 N4 109.094 N4 C2 H7 118.853
O5 C3 H8 115.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability