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 (Oxazole)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-245.869998
Energy at 298.15K-245.874637
HF Energy-245.869998
Nuclear repulsion energy164.007649
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/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' 3322 3188 1.13      
2 A' 3299 3166 0.50      
3 A' 3283 3150 3.68      
4 A' 1608 1543 18.47      
5 A' 1560 1497 25.67      
6 A' 1382 1326 3.41      
7 A' 1281 1229 0.34      
8 A' 1187 1139 24.53      
9 A' 1154 1108 12.62      
10 A' 1118 1073 5.48      
11 A' 1095 1051 40.31      
12 A' 941 903 19.43      
13 A' 925 888 17.05      
14 A" 877 842 1.59      
15 A" 843 809 25.23      
16 A" 764 734 36.07      
17 A" 674 647 27.82      
18 A" 637 611 5.55      

Unscaled Zero Point Vibrational Energy (zpe) 12975.9 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 12451.7 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/6-311G*
ABC
0.34030 0.32547 0.16636

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.098 0.308 0.000
C2 0.000 1.090 0.000
N3 1.122 0.461 0.000
C4 0.751 -0.871 0.000
C5 -0.596 -0.957 0.000
H6 -0.170 2.155 0.000
H7 1.484 -1.662 0.000
H8 -1.315 -1.758 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.34832.22532.19251.36112.06743.24782.0773
C21.34831.28612.09962.13221.07863.12683.1372
N32.22531.28611.38272.22762.13052.15403.2963
C42.19252.09961.38271.34923.16291.07902.2485
C51.36112.13222.22761.34923.14142.19601.0767
H62.06741.07862.13053.16293.14144.16034.0774
H73.24783.12682.15401.07902.19604.16032.8011
H82.07733.13723.29632.24851.07674.07742.8011

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.264 O1 C2 H6 116.391
O1 C5 C4 107.984 O1 C5 H8 116.398
C2 O1 C5 103.805 C2 N3 C4 103.696
N3 C2 H6 128.345 N3 C4 C5 109.252
N3 C4 H7 121.601 C4 C5 H8 135.618
C5 C4 H7 129.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.213      
2 C 0.081      
3 N -0.300      
4 C -0.169      
5 C -0.105      
6 H 0.244      
7 H 0.224      
8 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.332 -0.801 0.000 1.555
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.976 -1.226 0.000
y -1.226 -22.431 0.000
z 0.000 0.000 -29.842
Traceless
 xyz
x -4.839 -1.226 0.000
y -1.226 7.977 0.000
z 0.000 0.000 -3.139
Polar
3z2-r2-6.277
x2-y2-8.544
xy-1.226
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.910 0.044 0.000
y 0.044 6.653 0.000
z 0.000 0.000 3.029


<r2> (average value of r2) Å2
<r2> 75.200
(<r2>)1/2 8.672