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All results from a given calculation for C4H7NO (Oxazole, 4,5-dihydro-2-methyl-)

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-281.295214
Energy at 298.15K-281.304261
Nuclear repulsion energy238.450699
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/STO-3G
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 3771 3079 1.21      
2 A 3601 2941 0.80      
3 A 3581 2924 1.98      
4 A 3573 2918 0.62      
5 A 2026 1655 79.79      
6 A 1826 1491 0.29      
7 A 1803 1472 0.24      
8 A 1799 1469 6.21      
9 A 1709 1396 8.97      
10 A 1621 1324 12.42      
11 A 1593 1300 13.81      
12 A 1513 1236 87.67      
13 A 1313 1072 6.79      
14 A 1258 1027 4.43      
15 A 1167 953 1.34      
16 A 1121 915 8.89      
17 A 1037 847 4.69      
18 A 870 710 4.86      
19 A 727 593 6.25      
20 A 356 291 3.23      
21 A 3744 3057 0.45      
22 A 3715 3033 0.60      
23 A 3695 3017 1.66      
24 A 1794 1465 4.03      
25 A 1455 1188 0.03      
26 A 1378 1125 4.49      
27 A 1274 1040 1.91      
28 A 1239 1011 4.67      
29 A 951 776 1.18      
30 A 600 490 10.62      
31 A 269 220 6.68      
32 A 158 129 0.80      
33 A 120 98 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 28327.4 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 23129.3 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/STO-3G
ABC
0.25324 0.11154 0.08095

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.333 2.164 0.000
C2 0.547 -1.512 0.000
C3 -0.994 -1.308 0.000
N4 -1.178 0.182 0.000
O5 1.104 -0.177 0.000
C6 0.000 0.680 0.000
H7 0.895 -2.049 0.887
H8 0.895 -2.049 -0.887
H9 -1.469 -1.738 0.883
H10 -1.469 -1.738 -0.883
H11 0.918 2.415 0.882
H12 0.918 2.415 -0.882
H13 -0.585 2.741 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.68183.71662.49252.46481.52074.34154.34154.38794.38791.08721.08721.0849
C23.68181.55482.41791.44602.25911.09401.09402.21202.21204.04144.04144.4012
C33.71661.55481.50102.38332.22252.21492.21491.09101.09104.27674.27674.0695
N42.49252.41791.50102.31061.27943.17213.17212.13362.13363.18703.18702.6271
O52.46481.44602.38332.31061.39792.08162.08163.13593.13592.74432.74433.3723
C61.52072.25912.22251.27941.39793.00583.00582.96412.96412.15152.15152.1427
H74.34151.09402.21493.17212.08163.00581.77482.38352.96914.46364.80145.0914
H84.34151.09402.21493.17212.08163.00581.77482.96912.38354.80144.46365.0914
H94.38792.21201.09102.13363.13592.96412.38352.96911.76624.79005.10474.6507
H104.38792.21201.09102.13363.13592.96412.96912.38351.76625.10474.79004.6507
H111.08724.04144.27673.18702.74432.15154.46364.80144.79005.10471.76321.7729
H121.08724.04144.27673.18702.74432.15154.80144.46365.10474.79001.76321.7729
H131.08494.40124.06952.62713.37232.14275.09145.09144.65074.65071.77291.7729

picture of Oxazole, 4,5-dihydro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C6 N4 125.569 C1 C6 O5 115.180
C2 C3 N4 104.592 C2 C3 H9 112.266
C2 C3 H10 112.266 C2 O5 C6 105.180
C3 C2 O5 105.112 C3 C2 H7 112.314
C3 C2 H8 112.314 C3 N4 C6 105.864
N4 C3 H9 109.795 N4 C3 H10 109.795
N4 C6 O5 119.252 O5 C2 H7 109.296
O5 C2 H8 109.296 C6 C1 H11 110.063
C6 C1 H12 110.063 C6 C1 H13 109.503
H7 C2 H8 108.417 H9 C3 H10 108.084
H11 C1 H12 108.367 H11 C1 H13 109.412
H12 C1 H13 109.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.192      
2 C -0.006      
3 C -0.050      
4 N -0.281      
5 O -0.244      
6 C 0.233      
7 H 0.069      
8 H 0.069      
9 H 0.074      
10 H 0.074      
11 H 0.083      
12 H 0.083      
13 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.773 -0.767 0.000 1.089
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.872 1.686 0.000
y 1.686 -29.028 0.000
z 0.000 0.000 -32.870
Traceless
 xyz
x -7.923 1.686 0.000
y 1.686 6.843 0.000
z 0.000 0.000 1.080
Polar
3z2-r22.160
x2-y2-9.844
xy1.686
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.155 0.652 0.000
y 0.652 5.175 0.000
z 0.000 0.000 2.703


<r2> (average value of r2) Å2
<r2> 150.415
(<r2>)1/2 12.264