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: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-245.999945
Energy at 298.15K-246.004458
HF Energy-245.999945
Nuclear repulsion energy162.359242
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 B97D3/TZVP
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' 3248 3201 0.62      
2 A' 3223 3177 0.36      
3 A' 3209 3162 3.09      
4 A' 1525 1503 7.81      
5 A' 1484 1463 27.88      
6 A' 1318 1299 3.97      
7 A' 1247 1229 0.25      
8 A' 1128 1111 12.23      
9 A' 1092 1076 7.42      
10 A' 1046 1031 40.18      
11 A' 1034 1019 11.12      
12 A' 901 888 31.74      
13 A' 899 886 9.40      
14 A" 826 814 5.20      
15 A" 787 776 32.29      
16 A" 722 711 24.77      
17 A" 648 639 24.32      
18 A" 606 598 4.17      

Unscaled Zero Point Vibrational Energy (zpe) 12471.3 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 12291.7 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 B97D3/TZVP
ABC
0.33261 0.31963 0.16300

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.110 0.307 0.000
C2 0.000 1.110 0.000
N3 1.126 0.468 0.000
C4 0.759 -0.879 0.000
C5 -0.596 -0.974 0.000
H6 -0.173 2.177 0.000
H7 1.498 -1.668 0.000
H8 -1.313 -1.780 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36992.24222.21351.37992.09163.27122.0964
C21.36991.29652.12852.16711.08103.15593.1738
N32.24221.29651.39572.24602.14692.16793.3170
C42.21352.12851.39571.35853.19451.08102.2597
C51.37992.16712.24601.35853.17892.20591.0788
H62.09161.08102.14693.19453.17894.19224.1175
H73.27123.15592.16791.08102.20594.19222.8132
H82.09643.17383.31702.25971.07884.11752.8132

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.439 O1 C2 H6 116.678
O1 C5 C4 107.855 O1 C5 H8 116.467
C2 O1 C5 104.013 C2 N3 C4 104.427
N3 C2 H6 128.883 N3 C4 C5 109.267
N3 C4 H7 121.648 C4 C5 H8 135.679
C5 C4 H7 129.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.111      
2 C -0.018      
3 N -0.085      
4 C -0.142      
5 C -0.008      
6 H 0.123      
7 H 0.115      
8 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.264 -0.842 0.000 1.519
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.520 -1.261 0.000
y -1.261 -22.785 0.000
z 0.000 0.000 -29.917
Traceless
 xyz
x -5.169 -1.261 0.000
y -1.261 7.934 0.000
z 0.000 0.000 -2.765
Polar
3z2-r2-5.530
x2-y2-8.735
xy-1.261
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.632 0.095 0.000
y 0.095 7.324 0.000
z 0.000 0.000 3.854


<r2> (average value of r2) Å2
<r2> 76.545
(<r2>)1/2 8.749