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: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-245.849119
Energy at 298.15K-245.853760
HF Energy-245.849119
Nuclear repulsion energy164.036794
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 PBE1PBE/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' 3323 3185 1.06      
2 A' 3299 3162 0.47      
3 A' 3283 3147 3.54      
4 A' 1611 1544 18.62      
5 A' 1563 1498 25.69      
6 A' 1384 1326 3.40      
7 A' 1281 1228 0.34      
8 A' 1192 1142 25.34      
9 A' 1158 1110 12.21      
10 A' 1121 1074 4.88      
11 A' 1098 1053 40.61      
12 A' 941 902 19.24      
13 A' 925 887 16.80      
14 A" 878 841 1.49      
15 A" 844 809 25.23      
16 A" 765 733 36.22      
17 A" 674 646 27.79      
18 A" 637 611 5.42      

Unscaled Zero Point Vibrational Energy (zpe) 12987.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 12448.4 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 PBE1PBE/6-311G*
ABC
0.34058 0.32544 0.16642

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/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 1.089 0.000
N3 1.122 0.461 0.000
C4 0.751 -0.870 0.000
C5 -0.596 -0.956 0.000
H6 -0.170 2.154 0.000
H7 1.484 -1.662 0.000
H8 -1.316 -1.757 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.34772.22592.19231.36042.06663.24792.0765
C21.34771.28622.09832.13051.07893.12603.1357
N32.22591.28621.38252.22752.13042.15393.2964
C42.19232.09831.38251.34923.16191.07922.2487
C51.36042.13052.22751.34923.13982.19631.0769
H62.06661.07892.13043.16193.13984.15974.0760
H73.24793.12602.15391.07922.19634.15972.8015
H82.07653.13573.29642.24871.07694.07602.8015

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.348 O1 C2 H6 116.346
O1 C5 C4 108.016 O1 C5 H8 116.370
C2 O1 C5 103.757 C2 N3 C4 103.622
N3 C2 H6 128.306 N3 C4 C5 109.256
N3 C4 H7 121.592 C4 C5 H8 135.614
C5 C4 H7 129.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.214      
2 C 0.085      
3 N -0.304      
4 C -0.167      
5 C -0.105      
6 H 0.244      
7 H 0.224      
8 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.338 -0.799 0.000 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.955 -1.227 0.000
y -1.227 -22.425 0.000
z 0.000 0.000 -29.840
Traceless
 xyz
x -4.823 -1.227 0.000
y -1.227 7.973 0.000
z 0.000 0.000 -3.150
Polar
3z2-r2-6.299
x2-y2-8.531
xy-1.227
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.906 0.043 0.000
y 0.043 6.643 0.000
z 0.000 0.000 3.027


<r2> (average value of r2) Å2
<r2> 75.174
(<r2>)1/2 8.670