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: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-245.929835
Energy at 298.15K-245.934331
HF Energy-245.929835
Nuclear repulsion energy161.933971
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 B97D3/6-31+G**
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' 3262 3206 0.74      
2 A' 3244 3189 0.37      
3 A' 3222 3167 3.33      
4 A' 1531 1505 9.61      
5 A' 1489 1464 31.59      
6 A' 1324 1301 3.09      
7 A' 1243 1222 0.23      
8 A' 1131 1111 16.05      
9 A' 1106 1087 7.99      
10 A' 1055 1037 22.91      
11 A' 1046 1028 27.09      
12 A' 898 883 28.84      
13 A' 895 879 8.71      
14 A" 829 815 6.82      
15 A" 784 771 35.29      
16 A" 715 703 29.17      
17 A" 645 634 25.16      
18 A" 604 594 4.33      

Unscaled Zero Point Vibrational Energy (zpe) 12511.6 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 12296.4 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 B97D3/6-31+G**
ABC
0.33142 0.31741 0.16213

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.111 0.309 0.000
C2 0.000 1.112 0.000
N3 1.132 0.466 0.000
C4 0.761 -0.881 0.000
C5 -0.601 -0.975 0.000
H6 -0.173 2.181 0.000
H7 1.500 -1.674 0.000
H8 -1.323 -1.780 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.37112.24912.21891.38162.09403.27882.0996
C21.37111.30342.13362.17161.08283.16413.1800
N32.24911.30341.39762.25402.15492.17183.3274
C42.21892.13361.39761.36543.20141.08352.2694
C51.38162.17162.25401.36543.18462.21391.0812
H62.09401.08282.15493.20143.18464.20234.1243
H73.27883.16412.17181.08352.21394.20232.8242
H82.09963.18003.32742.26941.08124.12432.8242

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.419 O1 C2 H6 116.810
O1 C5 C4 107.741 O1 C5 H8 116.631
C2 O1 C5 104.305 C2 N3 C4 104.364
N3 C2 H6 128.771 N3 C4 C5 109.171
N3 C4 H7 121.750 C4 C5 H8 135.628
C5 C4 H7 129.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.242      
2 C 0.122      
3 N -0.257      
4 C -0.105      
5 C 0.001      
6 H 0.163      
7 H 0.153      
8 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.298 -0.874 0.000 1.564
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.831 -1.308 0.000
y -1.308 -22.800 0.000
z 0.000 0.000 -30.250
Traceless
 xyz
x -5.306 -1.308 0.000
y -1.308 8.241 0.000
z 0.000 0.000 -2.935
Polar
3z2-r2-5.870
x2-y2-9.031
xy-1.308
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.045 0.156 0.000
y 0.156 7.557 0.000
z 0.000 0.000 4.165


<r2> (average value of r2) Å2
<r2> 76.991
(<r2>)1/2 8.774