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

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G*
 hartrees
Energy at 0K-285.724349
Energy at 298.15K-285.733314
HF Energy-284.848121
Nuclear repulsion energy240.852979
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 MP2=FULL/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 3246 3058 3.01      
2 A 3205 3020 4.87      
3 A 3200 3015 32.52      
4 A 3173 2989 8.98      
5 A 3128 2948 36.42      
6 A 3124 2943 6.97      
7 A 3120 2939 29.72      
8 A 1759 1657 92.32      
9 A 1586 1495 0.86      
10 A 1563 1472 0.12      
11 A 1543 1454 9.62      
12 A 1537 1448 9.43      
13 A 1470 1385 35.92      
14 A 1414 1332 15.16      
15 A 1374 1295 11.73      
16 A 1290 1215 87.75      
17 A 1280 1206 20.15      
18 A 1245 1173 1.99      
19 A 1151 1085 0.11      
20 A 1112 1048 1.23      
21 A 1095 1032 3.13      
22 A 1045 985 79.87      
23 A 1006 948 2.09      
24 A 980 923 27.55      
25 A 924 871 20.12      
26 A 871 821 3.47      
27 A 741 698 4.75      
28 A 671 633 3.51      
29 A 592 558 5.61      
30 A 352 332 5.84      
31 A 243 229 10.80      
32 A 147 138 1.17      
33 A 74 70 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 24629.9 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 23206.3 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 MP2=FULL/6-31G*
ABC
0.25736 0.11459 0.08314

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.738 -1.144 1.030
H2 -1.928 -1.292 -0.737
C3 -1.392 -0.774 0.060
H4 -2.008 1.224 0.761
H5 -1.848 1.107 -0.996
C6 -1.430 0.763 -0.045
N7 -0.023 1.187 0.038
O8 0.016 -1.095 -0.064
C9 0.669 0.111 0.001
H10 2.483 -0.579 0.870
H11 2.583 1.006 0.053
H12 2.494 -0.504 -0.894
C13 2.151 0.007 0.009

Atom - Atom Distances (Å)
  H1 H2 C3 H4 H5 C6 N7 O8 C9 H10 H11 H12 C13
H11.78281.09382.39853.03042.21013.05882.06762.90244.26094.92384.69204.1823
H21.78281.09152.92852.41382.22413.22082.06693.04214.74805.12374.49424.3458
C31.09381.09152.20492.20521.54062.39131.44942.24303.96254.35484.00983.6284
H42.39852.92852.20491.76781.09322.11263.18662.99654.84004.64975.09774.3981
H53.03042.41382.20521.76781.09492.10003.03242.88495.00834.55494.63274.2684
C62.21012.22411.54061.09321.09491.47222.35452.19814.23624.02134.20983.6606
N73.05883.22082.39132.11262.10001.47222.28441.27943.17582.61173.17192.4736
O82.06762.06691.44943.18663.03242.35452.28441.37272.68713.31912.67872.4039
C92.90243.04212.24302.99652.88492.19811.27941.37272.12632.11382.12371.4864
H104.26094.74803.96254.84005.00834.23623.17582.68712.12631.78631.76541.0927
H114.92385.12374.35484.64974.55494.02132.61173.31912.11381.78631.78511.0892
H124.69204.49424.00985.09774.63274.20983.17192.67872.12371.76541.78511.0929
C134.18234.34583.62844.39814.26843.66062.47362.40391.48641.09271.08921.0929

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 86.124 C1 C6 O5 129.831
C2 C3 N4 121.618 C2 C3 H9 128.266
C2 C3 H10 130.782 C2 O5 C6 66.844
C3 C2 O5 65.858 C3 C2 H7 33.743
C3 C2 H8 41.814 C3 N4 C6 40.182
N4 C3 H9 84.702 N4 C3 H10 99.428
N4 C6 O5 107.784 O5 C2 H7 40.689
O5 C2 H8 84.807 C6 C1 H11 53.462
C6 C1 H12 63.737 C6 C1 H13 60.952
H7 C2 H8 44.925 H9 C3 H10 24.216
H11 C1 H12 21.220 H11 C1 H13 10.085
H12 C1 H13 12.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability