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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-285.728607
Energy at 298.15K-285.737524
HF Energy-284.849202
Nuclear repulsion energy240.939444
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 MP3/6-31G*
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 3235 3036 4.39      
2 A 3130 2938 41.02      
3 A 3120 2929 9.45      
4 A 3119 2927 29.44      
5 A 1830 1718 120.36      
6 A 1593 1495 1.28      
7 A 1567 1471 0.09      
8 A 1542 1448 7.59      
9 A 1480 1389 47.19      
10 A 1426 1339 16.18      
11 A 1389 1303 12.56      
12 A 1308 1228 104.11      
13 A 1129 1060 4.34      
14 A 1081 1015 78.78      
15 A 1024 961 0.55      
16 A 985 925 25.08      
17 A 942 884 20.86      
18 A 777 729 6.26      
19 A 678 636 3.82      
20 A 354 333 6.11      
21 A 3191 2995 6.91      
22 A 3183 2987 41.93      
23 A 3156 2962 3.79      
24 A 1533 1439 9.14      
25 A 1284 1205 0.12      
26 A 1252 1175 1.77      
27 A 1155 1084 0.00      
28 A 1098 1031 3.01      
29 A 861 808 0.66      
30 A 599 562 6.84      
31 A 244 229 10.87      
32 A 149 140 0.99      
33 A 24 22 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 24718.3 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 23200.6 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 MP3/6-31G*
ABC
0.25823 0.11440 0.08298

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.345 2.127 0.000
C2 0.540 -1.503 0.000
C3 -0.991 -1.286 0.000
N4 -1.168 0.176 0.000
O5 1.080 -0.165 0.000
C6 0.000 0.677 0.000
H7 0.908 -2.020 0.890
H8 0.908 -2.020 -0.890
H9 -1.476 -1.713 0.883
H10 -1.476 -1.713 -0.883
H11 0.943 2.369 0.884
H12 0.943 2.369 -0.884
H13 -0.572 2.716 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.63573.66512.46892.40681.49034.27924.27924.34104.34101.09381.09381.0898
C23.63571.54662.39531.44322.24641.09331.09332.21142.21143.99163.99164.3635
C33.66511.54661.47242.35482.19912.22212.22211.09451.09454.22774.22774.0238
N42.46892.39531.47242.27331.27103.15043.15042.10792.10793.16893.16892.6091
O52.40681.44322.35482.27331.36922.06532.06533.11623.11622.68642.68643.3208
C61.49032.24642.19911.27101.36922.98222.98222.94502.94502.12822.12822.1176
H74.27921.09332.22213.15042.06532.98221.78072.40392.98734.38894.73395.0415
H84.27921.09332.22213.15042.06532.98221.78072.98732.40394.73394.38895.0415
H94.34102.21141.09452.10793.11622.94502.40392.98731.76634.74445.06284.6060
H104.34102.21141.09452.10793.11622.94502.98732.40391.76635.06284.74444.6060
H111.09383.99164.22773.16892.68642.12824.38894.73394.74445.06281.76731.7878
H121.09383.99164.22773.16892.68642.12824.73394.38895.06284.74441.76731.7878
H131.08984.36354.02382.60913.32082.11765.04155.04154.60604.60601.78781.7878

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 126.606 C1 C6 O5 114.572
C2 C3 N4 104.982 C2 C3 H9 112.589
C2 C3 H10 112.589 C2 O5 C6 105.996
C3 C2 O5 103.870 C3 C2 H7 113.539
C3 C2 H8 113.539 C3 N4 C6 106.330
N4 C3 H9 109.525 N4 C3 H10 109.525
N4 C6 O5 118.822 O5 C2 H7 108.238
O5 C2 H8 108.238 C6 C1 H11 109.940
C6 C1 H12 109.940 C6 C1 H13 109.335
H7 C2 H8 109.060 H9 C3 H10 107.584
H11 C1 H12 107.780 H11 C1 H13 109.914
H12 C1 H13 109.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability