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

using model chemistry: HF/6-311G*

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/6-311G*
 hartrees
Energy at 0K-284.910538
Energy at 298.15K-284.919800
Nuclear repulsion energy243.580781
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/6-311G*
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 3313 2996 14.78      
2 A 3238 2928 71.50      
3 A 3210 2903 64.38      
4 A 3205 2898 19.32      
5 A 1930 1745 231.71      
6 A 1677 1517 1.92      
7 A 1650 1492 0.22      
8 A 1611 1457 8.46      
9 A 1563 1414 53.59      
10 A 1522 1376 6.39      
11 A 1481 1339 24.64      
12 A 1371 1240 139.44      
13 A 1197 1083 8.05      
14 A 1143 1033 111.31      
15 A 1083 979 0.54      
16 A 1035 936 38.37      
17 A 994 899 17.21      
18 A 830 751 7.15      
19 A 703 636 3.32      
20 A 372 337 6.38      
21 A 3282 2969 75.93      
22 A 3259 2948 21.17      
23 A 3235 2926 18.85      
24 A 1609 1455 8.25      
25 A 1369 1238 0.00      
26 A 1340 1212 4.38      
27 A 1234 1116 0.14      
28 A 1169 1057 2.73      
29 A 902 816 1.71      
30 A 662 599 9.47      
31 A 259 234 11.43      
32 A 157 142 1.02      
33 A 77 69 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 25839.7 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 23369.4 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 HF/6-311G*
ABC
0.26602 0.11600 0.08454

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.341 2.117 0.000
C2 0.541 -1.489 0.000
C3 -0.986 -1.277 0.000
N4 -1.144 0.171 0.000
O5 1.055 -0.164 0.000
C6 0.000 0.667 0.000
H7 0.908 -1.999 0.880
H8 0.908 -1.999 -0.880
H9 -1.465 -1.704 0.874
H10 -1.465 -1.704 -0.874
H11 0.935 2.355 0.875
H12 0.935 2.355 -0.875
H13 -0.563 2.706 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.61163.64432.44802.39041.48904.24654.24654.31534.31531.08391.08391.0790
C23.61161.54172.36571.42132.22351.08121.08122.19842.19843.96213.96214.3383
C33.64431.54171.45682.32522.18042.20992.20991.08371.08374.20104.20104.0060
N42.44802.36571.45682.22521.24743.11373.11372.09302.09303.13983.13982.6012
O52.39041.42132.32522.22521.34382.03982.03983.07983.07982.66972.66973.2953
C61.48902.22352.18041.24741.34382.95082.95082.92092.92092.11832.11832.1151
H74.24651.08122.20993.11372.03982.95081.76022.39152.96564.35364.69415.0075
H84.24651.08122.20993.11372.03982.95081.76022.96562.39154.69414.35365.0075
H94.31532.19841.08372.09303.07982.92092.39152.96561.74714.71515.02894.5854
H104.31532.19841.08372.09303.07982.92092.96562.39151.74715.02894.71514.5854
H111.08393.96214.20103.13982.66972.11834.35364.69414.71515.02891.74991.7697
H121.08393.96214.20103.13982.66972.11834.69414.35365.02894.71511.74991.7697
H131.07904.33834.00602.60123.29532.11515.00755.00754.58544.58541.76971.7697

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 126.690 C1 C6 O5 115.003
C2 C3 N4 104.140 C2 C3 H9 112.556
C2 C3 H10 112.556 C2 O5 C6 107.018
C3 C2 O5 103.320 C3 C2 H7 113.662
C3 C2 H8 113.662 C3 N4 C6 107.216
N4 C3 H9 110.075 N4 C3 H10 110.075
N4 C6 O5 118.307 O5 C2 H7 108.429
O5 C2 H8 108.429 C6 C1 H11 109.835
C6 C1 H12 109.835 C6 C1 H13 109.875
H7 C2 H8 108.981 H9 C3 H10 107.435
H11 C1 H12 107.654 H11 C1 H13 109.805
H12 C1 H13 109.805
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.660 -0.563   -0.724
2 C -0.195 0.029   0.083
3 C -0.337 0.457   0.273
4 N -0.431 -0.799   -0.765
5 O -0.438 -0.469   -0.483
6 C 0.479 0.889   0.934
7 H 0.214 0.050   0.047
8 H 0.214 0.050   0.047
9 H 0.218 -0.046   0.007
10 H 0.218 -0.046   0.007
11 H 0.235 0.148   0.190
12 H 0.235 0.148   0.190
13 H 0.250 0.153   0.193


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.012 -1.009 0.000 1.429
CHELPG        
AIM        
ESP 0.995 -1.077 0.000 1.466


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.830 1.914 0.000
y 1.914 -29.748 0.000
z 0.000 0.000 -35.279
Traceless
 xyz
x -9.316 1.914 0.000
y 1.914 8.806 0.000
z 0.000 0.000 0.510
Polar
3z2-r21.019
x2-y2-12.082
xy1.914
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.171 0.736 0.000
y 0.736 8.323 0.000
z 0.000 0.000 5.547


<r2> (average value of r2) Å2
<r2> 146.511
(<r2>)1/2 12.104