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

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-286.515288
Energy at 298.15K-286.524216
Nuclear repulsion energy241.073392
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 B3PW91/cc-pVDZ
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 3193 3081 2.93      
2 A 3062 2955 17.52      
3 A 3061 2954 43.21      
4 A 3043 2937 45.44      
5 A 1767 1705 143.20      
6 A 1501 1448 4.87      
7 A 1471 1420 0.14      
8 A 1446 1396 8.46      
9 A 1409 1359 70.36      
10 A 1365 1317 6.06      
11 A 1325 1279 12.12      
12 A 1254 1210 81.01      
13 A 1088 1050 5.76      
14 A 1040 1004 91.76      
15 A 995 960 0.80      
16 A 955 922 17.40      
17 A 920 888 21.30      
18 A 764 737 5.47      
19 A 671 647 2.47      
20 A 347 335 5.53      
21 A 3136 3027 5.77      
22 A 3114 3005 40.47      
23 A 3078 2971 7.42      
24 A 1443 1392 9.33      
25 A 1234 1191 0.05      
26 A 1205 1163 1.80      
27 A 1107 1069 0.00      
28 A 1046 1010 3.85      
29 A 823 794 0.05      
30 A 597 576 3.85      
31 A 237 229 9.90      
32 A 143 138 1.21      
33 A 71 68 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 23955.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 23116.7 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 B3PW91/cc-pVDZ
ABC
0.25832 0.11474 0.08320

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.329 2.125 0.000
C2 0.547 -1.496 0.000
C3 -0.983 -1.286 0.000
N4 -1.168 0.166 0.000
O5 1.080 -0.158 0.000
C6 0.000 0.676 0.000
H7 0.923 -2.017 0.894
H8 0.923 -2.017 -0.894
H9 -1.471 -1.726 0.886
H10 -1.471 -1.726 -0.886
H11 0.932 2.377 0.886
H12 0.932 2.377 -0.886
H13 -0.595 2.714 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62813.65492.46562.40371.48664.27914.27914.34254.34251.10081.10081.0956
C23.62811.54482.38861.44032.23981.10111.10112.21622.21623.99213.99214.3620
C33.65491.54481.46382.35142.19412.22902.22901.10281.10284.22734.22734.0181
N42.46562.38861.46382.27121.27403.15253.15252.11102.11103.17513.17512.6108
O52.40371.44032.35142.27121.36452.06882.06883.12283.12282.68982.68983.3245
C61.48662.23982.19411.27401.36452.98372.98372.95232.95232.13282.13282.1229
H74.27911.10112.22903.15252.06882.98371.78872.41212.99774.39424.74135.0480
H84.27911.10112.22903.15252.06882.98371.78872.99772.41214.74134.39425.0480
H94.34252.21621.10282.11103.12282.95232.41212.99771.77114.75495.07434.6108
H104.34252.21621.10282.11103.12282.95232.99772.41211.77115.07434.75494.6108
H111.10083.99214.22733.17512.68982.13284.39424.74134.75495.07431.77261.7971
H121.10083.99214.22733.17512.68982.13284.74134.39425.07434.75491.77261.7971
H131.09564.36204.01812.61083.32452.12295.04805.04804.61084.61081.79711.7971

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 126.364 C1 C6 O5 114.866
C2 C3 N4 105.073 C2 C3 H9 112.598
C2 C3 H10 112.598 C2 O5 C6 105.949
C3 C2 O5 103.888 C3 C2 H7 113.741
C3 C2 H8 113.741 C3 N4 C6 106.320
N4 C3 H9 109.870 N4 C3 H10 109.870
N4 C6 O5 118.770 O5 C2 H7 108.246
O5 C2 H8 108.246 C6 C1 H11 110.142
C6 C1 H12 110.142 C6 C1 H13 109.673
H7 C2 H8 108.635 H9 C3 H10 106.843
H11 C1 H12 107.240 H11 C1 H13 109.806
H12 C1 H13 109.806
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 C 0.081      
3 C 0.004      
4 N -0.286      
5 O -0.294      
6 C 0.099      
7 H 0.050      
8 H 0.050      
9 H 0.049      
10 H 0.049      
11 H 0.069      
12 H 0.069      
13 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.961 -0.792 0.000 1.245
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.347 1.710 0.000
y 1.710 -29.683 0.000
z 0.000 0.000 -34.871
Traceless
 xyz
x -8.070 1.710 0.000
y 1.710 7.926 0.000
z 0.000 0.000 0.143
Polar
3z2-r20.287
x2-y2-10.664
xy1.710
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 148.175
(<r2>)1/2 12.173