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: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-244.666906
Energy at 298.15K-244.671748
HF Energy-244.666906
Nuclear repulsion energy164.928659
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 HF/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3472 3161 0.88      
2 A' 3440 3133 0.53      
3 A' 3432 3125 3.78      
4 A' 1751 1594 28.39      
5 A' 1693 1542 33.40      
6 A' 1483 1351 11.95      
7 A' 1379 1256 0.15      
8 A' 1272 1158 37.73      
9 A' 1207 1099 18.47      
10 A' 1178 1072 8.12      
11 A' 1143 1041 46.67      
12 A' 1006 916 15.52      
13 A' 986 898 22.06      
14 A" 1014 923 4.10      
15 A" 984 896 8.60      
16 A" 861 784 49.53      
17 A" 704 641 32.74      
18 A" 663 604 12.18      

Unscaled Zero Point Vibrational Energy (zpe) 13833.7 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 12596.9 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 HF/aug-cc-pVDZ
ABC
0.34078 0.33221 0.16822

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.080 0.308 0.000
C2 0.000 1.089 0.000
N3 1.106 0.466 0.000
C4 0.740 -0.873 0.000
C5 -0.590 -0.958 0.000
H6 -0.163 2.150 0.000
H7 1.466 -1.663 0.000
H8 -1.299 -1.762 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.33342.19162.16961.35752.05793.22012.0810
C21.33341.26922.09702.13121.07303.11863.1332
N32.19161.26921.38782.21492.10822.15953.2782
C42.16962.09701.38781.33333.15461.07332.2246
C51.35752.13122.21491.33333.13752.17411.0713
H62.05791.07302.10823.15463.13754.14644.0733
H73.22013.11862.15951.07332.17414.14642.7671
H82.08103.13323.27822.22461.07134.07332.7671

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.702 O1 C2 H6 117.151
O1 C5 C4 107.467 O1 C5 H8 117.433
C2 O1 C5 104.736 C2 N3 C4 104.140
N3 C2 H6 128.147 N3 C4 C5 108.955
N3 C4 H7 122.156 C4 C5 H8 135.099
C5 C4 H7 128.889
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.732      
2 C 0.778      
3 N -0.707      
4 C 0.441      
5 C 0.799      
6 H -0.150      
7 H -0.183      
8 H -0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.347 -0.753 0.000 1.544
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.804 -1.399 0.000
y -1.399 -22.624 0.000
z 0.000 0.000 -30.494
Traceless
 xyz
x -5.245 -1.399 0.000
y -1.399 8.525 0.000
z 0.000 0.000 -3.280
Polar
3z2-r2-6.560
x2-y2-9.181
xy-1.399
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.633 0.088 0.000
y 0.088 7.080 0.000
z 0.000 0.000 4.340


<r2> (average value of r2) Å2
<r2> 74.936
(<r2>)1/2 8.657