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

using model chemistry: MP2/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 MP2/cc-pVDZ
 hartrees
Energy at 0K-285.759578
Energy at 298.15K-285.768526
HF Energy-284.868330
Nuclear repulsion energy240.124621
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/cc-pVDZ
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 3237 3083 2.86      
2 A 3193 3041 5.65      
3 A 3180 3029 35.70      
4 A 3154 3004 10.99      
5 A 3103 2956 47.00      
6 A 3102 2955 5.36      
7 A 3095 2948 39.72      
8 A 1740 1657 91.93      
9 A 1523 1451 2.59      
10 A 1494 1423 0.11      
11 A 1477 1407 7.13      
12 A 1475 1405 8.40      
13 A 1426 1358 60.72      
14 A 1379 1314 6.27      
15 A 1336 1273 13.96      
16 A 1264 1204 71.45      
17 A 1248 1188 12.72      
18 A 1219 1161 2.83      
19 A 1121 1068 0.09      
20 A 1087 1036 2.27      
21 A 1059 1009 3.33      
22 A 1040 991 76.64      
23 A 993 946 5.77      
24 A 964 919 23.66      
25 A 920 876 20.79      
26 A 848 808 3.74      
27 A 734 699 3.90      
28 A 669 637 3.27      
29 A 585 558 3.50      
30 A 345 328 4.79      
31 A 239 228 9.32      
32 A 150 143 1.23      
33 A 74 70 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 24236.8 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 23085.6 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 MP2/cc-pVDZ
ABC
0.25524 0.11414 0.08274

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.156 0.009 0.009
C2 1.390 -0.778 0.061
C3 1.433 0.765 -0.045
N4 0.022 1.193 0.039
O5 -0.016 -1.098 -0.065
C6 -0.666 0.108 0.001
H7 1.937 -1.299 -0.739
H8 1.740 -1.146 1.040
H9 1.856 1.109 -1.005
H10 2.021 1.227 0.764
H11 -2.501 -0.509 -0.900
H12 -2.490 -0.584 0.876
H13 -2.590 1.016 0.053

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.63263.66862.47942.41031.49324.36174.19244.28264.41601.10171.10161.0974
C23.63261.54682.39861.44792.23941.10031.10322.21702.21644.01683.96934.3654
C33.66861.54681.47702.36062.20052.23452.21911.10411.10174.22254.24954.0323
N42.47942.39861.47702.29341.28553.23713.06982.11212.12633.18463.18842.6181
O52.41031.44792.36062.29341.37132.07602.07593.04353.20092.68642.69633.3326
C61.49322.23942.20051.28551.37133.05002.90542.89473.00932.13492.13762.1280
H74.36171.10032.23453.23712.07603.05001.79622.42422.94044.51074.76645.1458
H84.19241.10322.21913.06982.07592.90541.79623.04712.40624.70704.27034.9393
H94.28262.21701.10412.11213.04352.89472.42423.04711.78044.64915.02944.5715
H104.41602.21641.10172.12633.20093.00932.94042.40621.78045.12134.86194.6700
H111.10174.01684.22253.18462.68642.13494.51074.70704.64915.12131.77801.8002
H121.10163.96934.24953.18842.69632.13764.76644.27035.02944.86191.77801.8014
H131.09744.36544.03232.61813.33262.12805.14584.93934.57154.67001.80021.8014

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 126.156 C1 C6 O5 114.517
C2 C3 N4 104.960 C2 C3 H9 112.440
C2 C3 H10 112.539 C2 O5 C6 105.160
C3 C2 O5 103.998 C3 C2 H7 114.102
C3 C2 H8 112.661 C3 N4 C6 105.395
N4 C3 H9 108.978 N4 C3 H10 110.245
N4 C6 O5 119.325 O5 C2 H7 108.350
O5 C2 H8 108.168 C6 C1 H11 109.794
C6 C1 H12 110.019 C6 C1 H13 109.508
H7 C2 H8 109.212 H9 C3 H10 107.637
H11 C1 H12 107.601 H11 C1 H13 109.887
H12 C1 H13 110.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability