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/aug-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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-245.906114
Energy at 298.15K-245.910777
HF Energy-245.906114
Nuclear repulsion energy164.170317
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/aug-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' 3312 3186 0.40      
2 A' 3284 3159 0.93      
3 A' 3276 3151 2.55      
4 A' 1598 1537 16.21      
5 A' 1550 1491 26.52      
6 A' 1376 1324 3.55      
7 A' 1277 1228 0.17      
8 A' 1185 1140 24.86      
9 A' 1148 1104 11.58      
10 A' 1115 1073 5.02      
11 A' 1091 1049 37.06      
12 A' 935 899 18.51      
13 A' 920 885 15.09      
14 A" 899 864 0.99      
15 A" 860 827 22.30      
16 A" 779 749 38.38      
17 A" 672 646 26.70      
18 A" 635 611 5.07      

Unscaled Zero Point Vibrational Energy (zpe) 12955.3 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 12460.4 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/aug-cc-pVTZ
ABC
0.33999 0.32705 0.16670

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.095 0.308 0.000
C2 0.000 1.093 0.000
N3 1.118 0.460 0.000
C4 0.749 -0.872 0.000
C5 -0.594 -0.958 0.000
H6 -0.167 2.157 0.000
H7 1.479 -1.664 0.000
H8 -1.309 -1.760 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.34742.21852.18961.36142.06903.24232.0795
C21.34741.28482.10302.13511.07713.12823.1392
N32.21851.28481.38232.22322.12862.15423.2895
C42.18962.10301.38231.34613.16461.07652.2415
C51.36142.13512.22321.34613.14412.18981.0746
H62.06901.07712.12863.16463.14414.16014.0806
H73.24233.12822.15421.07652.18984.16012.7891
H82.07953.13923.28952.24151.07464.08062.7891

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.862 O1 C2 H6 116.721
O1 C5 C4 107.935 O1 C5 H8 116.731
C2 O1 C5 104.039 C2 N3 C4 104.027
N3 C2 H6 128.417 N3 C4 C5 109.136
N3 C4 H7 121.860 C4 C5 H8 135.334
C5 C4 H7 129.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.247      
2 C -0.231      
3 N -0.482      
4 C -0.204      
5 C -0.341      
6 H 0.535      
7 H 0.467      
8 H 0.503      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.348 -0.783 0.000 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.362 -1.312 0.000
y -1.312 -22.838 0.000
z 0.000 0.000 -29.976
Traceless
 xyz
x -4.956 -1.312 0.000
y -1.312 7.832 0.000
z 0.000 0.000 -2.876
Polar
3z2-r2-5.751
x2-y2-8.525
xy-1.312
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.928 0.136 0.000
y 0.136 7.693 0.000
z 0.000 0.000 4.435


<r2> (average value of r2) Å2
<r2> 75.279
(<r2>)1/2 8.676