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

using model chemistry: HF/aug-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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-284.889908
Energy at 298.15K-284.899147
Nuclear repulsion energy242.806585
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/aug-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 3307 3011 10.13      
2 A 3223 2935 73.11      
3 A 3197 2911 55.07      
4 A 3190 2905 14.76      
5 A 1909 1739 232.68      
6 A 1646 1499 2.85      
7 A 1619 1474 0.31      
8 A 1574 1433 8.85      
9 A 1539 1401 58.11      
10 A 1495 1361 7.69      
11 A 1460 1329 22.27      
12 A 1356 1235 120.83      
13 A 1183 1077 4.01      
14 A 1134 1032 111.10      
15 A 1073 977 3.79      
16 A 1027 935 29.98      
17 A 991 902 21.63      
18 A 823 750 6.48      
19 A 701 638 2.99      
20 A 374 341 7.18      
21 A 3273 2980 54.88      
22 A 3254 2964 14.31      
23 A 3228 2940 12.88      
24 A 1576 1435 7.36      
25 A 1345 1225 0.05      
26 A 1316 1198 4.87      
27 A 1215 1106 0.18      
28 A 1151 1048 2.92      
29 A 894 814 1.13      
30 A 661 602 8.39      
31 A 260 236 11.40      
32 A 160 146 0.77      
33 A 59 54 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 25605.0 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 23315.9 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/aug-cc-pVDZ
ABC
0.26465 0.11526 0.08406

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.335 2.124 0.000
C2 0.545 -1.492 0.000
C3 -0.983 -1.284 0.000
N4 -1.148 0.167 0.000
O5 1.060 -0.161 0.000
C6 0.000 0.672 0.000
H7 0.913 -2.003 0.886
H8 0.913 -2.003 -0.886
H9 -1.461 -1.714 0.879
H10 -1.461 -1.714 -0.879
H11 0.930 2.363 0.881
H12 0.930 2.363 -0.881
H13 -0.579 2.709 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62293.65432.45602.39801.49074.26064.26064.32774.32771.08961.08961.0846
C23.62291.54222.37031.42742.23171.08711.08712.20142.20143.97393.97394.3492
C33.65431.54221.45992.33132.18902.21342.21341.08911.08914.21194.21194.0135
N42.45602.37031.45992.23231.25453.12103.12102.09912.09913.14973.14972.6055
O52.39801.42742.33132.23231.34802.04892.04893.08863.08862.67712.67713.3052
C61.49072.23172.18901.25451.34802.96182.96182.93242.93242.12192.12192.1180
H74.26061.08712.21343.12102.04892.96181.77262.39212.97314.36614.71025.0212
H84.26061.08712.21343.12102.04892.96181.77262.97312.39214.71024.36615.0212
H94.32772.20141.08912.09913.08862.93242.39212.97311.75834.72665.04364.5948
H104.32772.20141.08912.09913.08862.93242.97312.39211.75835.04364.72664.5948
H111.08963.97394.21193.14972.67712.12194.36614.71024.72665.04361.76161.7809
H121.08963.97394.21193.14972.67712.12194.71024.36615.04364.72661.76161.7809
H131.08464.34924.01352.60553.30522.11805.02125.02124.59484.59481.78091.7809

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 126.720 C1 C6 O5 115.194
C2 C3 N4 104.255 C2 C3 H9 112.431
C2 C3 H10 112.431 C2 O5 C6 107.008
C3 C2 O5 103.390 C3 C2 H7 113.539
C3 C2 H8 113.539 C3 N4 C6 107.261
N4 C3 H9 110.026 N4 C3 H10 110.026
N4 C6 O5 118.086 O5 C2 H7 108.382
O5 C2 H8 108.382 C6 C1 H11 109.657
C6 C1 H12 109.657 C6 C1 H13 109.650
H7 C2 H8 109.238 H9 C3 H10 107.657
H11 C1 H12 107.870 H11 C1 H13 109.991
H12 C1 H13 109.991
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.554      
2 C 1.004      
3 C 0.555      
4 N -0.686      
5 O -0.990      
6 C 0.352      
7 H -0.204      
8 H -0.204      
9 H -0.190      
10 H -0.190      
11 H 0.022      
12 H 0.022      
13 H -0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.098 -0.876 0.000 1.405
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.910 1.920 0.000
y 1.920 -29.945 0.000
z 0.000 0.000 -35.527
Traceless
 xyz
x -9.174 1.920 0.000
y 1.920 8.773 0.000
z 0.000 0.000 0.401
Polar
3z2-r20.801
x2-y2-11.965
xy1.920
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> 147.347
(<r2>)1/2 12.139