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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: CCSD(T)=FULL/cc-pVTZ

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(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-245.713877
Energy at 298.15K 
HF Energy-244.673963
Nuclear repulsion energy162.326854
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(T)=FULL/cc-pVTZ
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' 3320 3181        
2 A' 3289 3151        
3 A' 3275 3138        
4 A' 1610 1542        
5 A' 1481 1419        
6 A' 1413 1353        
7 A' 1257 1204        
8 A' 1172 1122        
9 A' 1130 1082        
10 A' 1051 1007        
11 A' 934 894        
12 A' 916 877        
13 A' 894 856        
14 A" 932 893        
15 A" 892 855        
16 A" 799 766        
17 A" 646 619        
18 A" 609 583        

Unscaled Zero Point Vibrational Energy (zpe) 12809.6 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 12271.6 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(T)=FULL/cc-pVTZ
ABC
0.32827 0.32217 0.16260

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.126 0.368 0.000
C2 0.617 -0.958 0.000
C3 0.000 1.122 0.000
N4 -0.691 -0.990 0.000
O5 -1.093 0.344 0.000
H6 2.144 0.695 0.000
H7 1.158 -1.885 0.000
H8 -0.177 2.179 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42061.35482.26842.21921.06992.25362.2306
C21.42062.17001.30892.14982.25071.07323.2364
C31.35482.17002.22231.34212.18653.22251.0718
N42.26841.30892.22231.39303.29852.05473.2107
O52.21922.14981.34211.39303.25683.16822.0517
H61.06992.25072.18653.29853.25682.76232.7549
H72.25361.07323.22252.05473.16822.76234.2779
H82.23063.23641.07183.21072.05172.75494.2779

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.357 C1 C2 H7 128.761
C1 C3 O5 110.744 C1 C3 H8 133.296
C2 C1 C3 102.841 C2 C1 H6 128.765
C2 N4 O5 105.393 C3 C1 H6 128.395
C3 O5 N4 108.665 N4 C2 H7 118.881
O5 C3 H8 115.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability