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

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-283.505067
Energy at 298.15K-283.513876
Nuclear repulsion energy238.820245
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 LSDA/3-21G*
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 3131 3074 0.31      
2 A 3015 2961 24.76      
3 A 3006 2952 25.33      
4 A 3006 2952 0.43      
5 A 1695 1665 94.77      
6 A 1507 1479 4.77      
7 A 1482 1455 5.28      
8 A 1470 1444 12.47      
9 A 1391 1366 45.07      
10 A 1328 1304 18.89      
11 A 1280 1257 0.14      
12 A 1225 1202 101.39      
13 A 1061 1041 2.43      
14 A 965 948 51.98      
15 A 924 907 0.65      
16 A 905 889 37.47      
17 A 873 857 19.45      
18 A 737 724 9.10      
19 A 665 653 3.56      
20 A 322 317 5.82      
21 A 3073 3018 23.75      
22 A 3069 3014 1.20      
23 A 3045 2990 0.33      
24 A 1473 1446 16.24      
25 A 1230 1208 0.08      
26 A 1167 1146 0.01      
27 A 1075 1056 3.91      
28 A 1056 1037 4.94      
29 A 813 798 0.33      
30 A 569 559 2.80      
31 A 232 228 14.30      
32 A 128 126 1.76      
33 A 109 107 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 23513.5 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 23090.3 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 LSDA/3-21G*
ABC
0.25334 0.11293 0.08180

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.346 2.128 0.000
C2 0.534 -1.525 0.000
C3 -1.002 -1.294 0.000
N4 -1.173 0.184 0.000
O5 1.102 -0.160 0.000
C6 0.000 0.697 0.000
H7 0.891 -2.046 0.903
H8 0.891 -2.046 -0.903
H9 -1.489 -1.716 0.895
H10 -1.489 -1.716 -0.895
H11 0.952 2.373 0.890
H12 0.952 2.373 -0.890
H13 -0.579 2.721 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.65793.67812.46752.40981.47254.30574.30574.35304.35301.10411.10411.0986
C23.65791.55402.41571.47832.28521.10221.10222.22122.22124.02004.02004.3896
C33.67811.55401.48752.39042.22892.22872.22871.10331.10334.24934.24934.0374
N42.46752.41571.48752.30101.28053.17013.17012.12402.12403.17803.17802.6062
O52.40981.47832.39042.30101.39592.10202.10203.15253.15252.68902.68903.3356
C61.47252.28522.22891.28051.39593.02243.02242.97362.97362.12302.12302.1054
H74.30571.10222.22873.17012.10203.02241.80652.40313.00184.41974.76975.0700
H84.30571.10222.22873.17012.10203.02241.80653.00182.40314.76974.41975.0700
H94.35302.22121.10332.12403.15252.97362.40313.00181.79104.76225.08604.6174
H104.35302.22121.10332.12403.15252.97363.00182.40311.79105.08604.76224.6174
H111.10414.02004.24933.17802.68902.12304.41974.76974.76225.08601.78031.8043
H121.10414.02004.24933.17802.68902.12304.76974.41975.08604.76221.78031.8043
H131.09864.38964.03742.60623.33562.10545.07005.07004.61744.61741.80431.8043

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 127.212 C1 C6 O5 114.278
C2 C3 N4 105.145 C2 C3 H9 112.306
C2 C3 H10 112.306 C2 O5 C6 105.286
C3 C2 O5 104.030 C3 C2 H7 112.971
C3 C2 H8 112.971 C3 N4 C6 107.029
N4 C3 H9 109.237 N4 C3 H10 109.237
N4 C6 O5 118.510 O5 C2 H7 108.210
O5 C2 H8 108.210 C6 C1 H11 110.146
C6 C1 H12 110.146 C6 C1 H13 109.085
H7 C2 H8 110.071 H9 C3 H10 108.512
H11 C1 H12 107.450 H11 C1 H13 110.001
H12 C1 H13 110.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.688      
2 C -0.260      
3 C -0.373      
4 N -0.421      
5 O -0.420      
6 C 0.445      
7 H 0.236      
8 H 0.236      
9 H 0.243      
10 H 0.243      
11 H 0.252      
12 H 0.252      
13 H 0.255      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.773 -1.031 0.000 1.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.746 2.092 0.000
y 2.092 -28.798 0.000
z 0.000 0.000 -35.127
Traceless
 xyz
x -8.784 2.092 0.000
y 2.092 9.139 0.000
z 0.000 0.000 -0.355
Polar
3z2-r2-0.710
x2-y2-11.948
xy2.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.950 0.641 0.000
y 0.641 8.699 0.000
z 0.000 0.000 5.142


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000