return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: HSEh1PBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/Def2TZVPP
 hartrees
Energy at 0K-245.875533
Energy at 298.15K 
HF Energy-245.875533
Nuclear repulsion energy163.241579
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 HSEh1PBE/Def2TZVPP
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' 3303 3303 0.18 118.11 0.10 0.19
2 A' 3278 3278 0.14 52.83 0.61 0.76
3 A' 3258 3258 0.82 88.82 0.36 0.53
4 A' 1621 1621 10.17 2.01 0.08 0.15
5 A' 1489 1489 31.84 35.10 0.21 0.35
6 A' 1418 1418 7.17 2.67 0.13 0.23
7 A' 1262 1262 7.09 14.45 0.13 0.23
8 A' 1170 1170 19.11 1.82 0.54 0.70
9 A' 1141 1141 9.08 12.66 0.11 0.20
10 A' 1051 1051 5.44 3.00 0.60 0.75
11 A' 948 948 28.11 3.99 0.19 0.32
12 A' 932 932 8.14 4.03 0.46 0.63
13 A' 930 930 4.54 1.10 0.75 0.86
14 A" 927 927 5.73 0.90 0.75 0.86
15 A" 891 891 0.24 0.15 0.75 0.86
16 A" 793 793 62.10 0.04 0.75 0.86
17 A" 662 662 1.45 0.22 0.75 0.86
18 A" 619 619 14.05 0.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12845.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12845.4 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 HSEh1PBE/Def2TZVPP
ABC
0.33230 0.32567 0.16447

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.363 0.000
C2 0.610 -0.957 0.000
C3 0.000 1.118 0.000
N4 -0.692 -0.977 0.000
O5 -1.082 0.340 0.000
H6 2.146 0.690 0.000
H7 1.146 -1.894 0.000
H8 -0.180 2.181 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41581.35192.25452.20381.07562.25682.2353
C21.41582.16271.30182.13172.25271.07943.2354
C31.35192.16272.20581.33292.18833.22241.0777
N42.25451.30182.20581.37303.29142.05443.1984
O52.20382.13171.33291.37303.24723.15512.0501
H61.07562.25272.18833.29143.24722.77072.7621
H72.25681.07943.22242.05443.15512.77074.2846
H82.23533.23541.07773.19842.05012.76214.2846

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.047 C1 C2 H7 128.993
C1 C3 O5 110.336 C1 C3 H8 133.539
C2 C1 C3 102.756 C2 C1 H6 128.914
C2 N4 O5 105.656 C3 C1 H6 128.330
C3 O5 N4 109.205 N4 C2 H7 118.960
O5 C3 H8 116.125
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.173      
2 C -0.027      
3 C 0.038      
4 N -0.129      
5 O -0.098      
6 H 0.132      
7 H 0.118      
8 H 0.138      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.502 1.527 0.000 2.931
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.399 -2.647 0.000
y -2.647 -25.071 0.000
z 0.000 0.000 -30.060
Traceless
 xyz
x -0.833 -2.647 0.000
y -2.647 4.158 0.000
z 0.000 0.000 -3.325
Polar
3z2-r2-6.649
x2-y2-3.328
xy-2.647
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.682 -0.155 0.000
y -0.155 7.290 0.000
z 0.000 0.000 3.983


<r2> (average value of r2) Å2
<r2> 76.041
(<r2>)1/2 8.720