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

using model chemistry: MP3=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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-285.753807
Energy at 298.15K-285.762734
HF Energy-284.849452
Nuclear repulsion energy241.161214
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=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' 3236 3036 4.31      
2 A' 3131 2938 40.92      
3 A' 3121 2928 9.17      
4 A' 3119 2927 29.49      
5 A' 1834 1721 121.14      
6 A' 1593 1495 1.39      
7 A' 1568 1471 0.09      
8 A' 1543 1447 7.57      
9 A' 1482 1390 48.28      
10 A' 1428 1340 15.78      
11 A' 1390 1304 12.09      
12 A' 1310 1229 104.96      
13 A' 1131 1061 4.49      
14 A' 1084 1017 78.94      
15 A' 1025 962 0.48      
16 A' 987 926 24.87      
17 A' 944 886 20.70      
18 A' 778 730 6.29      
19 A' 679 637 3.79      
20 A' 355 333 6.10      
21 A" 3191 2994 6.79      
22 A" 3183 2987 41.66      
23 A" 3157 2962 3.76      
24 A" 1534 1439 9.23      
25 A" 1286 1207 0.11      
26 A" 1254 1177 1.79      
27 A" 1155 1084 0.00      
28 A" 1100 1032 3.10      
29 A" 861 808 0.67      
30 A" 602 565 6.78      
31 A" 245 230 10.88      
32 A" 150 141 0.99      
33 A" 24 23 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 24740.1 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 23213.6 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=FULL/6-31G*
ABC
0.25874 0.11461 0.08314

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.343 2.125 0.000
C2 0.545 -1.498 0.000
C3 -0.992 -1.284 0.000
N4 -1.167 0.173 0.000
O5 1.077 -0.162 0.000
C6 0.000 0.675 0.000
H7 0.910 -2.019 0.890
H8 0.910 -2.019 -0.890
H9 -1.476 -1.714 0.882
H10 -1.476 -1.714 -0.882
H11 0.941 2.366 0.884
H12 0.941 2.366 -0.884
H13 -0.574 2.712 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62843.66062.46752.40191.49024.27554.27554.33864.33861.09391.09391.0897
C23.62841.55152.39231.43822.23991.09361.09362.21562.21563.98393.98394.3566
C33.66061.55151.46752.35362.19522.22502.22501.09471.09474.22364.22364.0177
N42.46752.39231.46752.26921.27003.14823.14822.10622.10623.16753.16752.6071
O52.40191.43822.35362.26921.36422.06522.06523.11563.11562.68192.68193.3153
C61.49022.23992.19521.27001.36422.97882.97882.94322.94322.12792.12792.1171
H74.27551.09362.22503.14822.06522.97881.77922.40612.98824.38494.72995.0375
H84.27551.09362.22503.14822.06522.97881.77922.98822.40614.72994.38495.0375
H94.33862.21561.09472.10623.11562.94322.40612.98821.76494.74235.06064.6024
H104.33862.21561.09472.10623.11562.94322.98822.40611.76495.06064.74234.6024
H111.09393.98394.22363.16752.68192.12794.38494.72994.74235.06061.76751.7881
H121.09393.98394.22363.16752.68192.12794.72994.38495.06064.74231.76751.7881
H131.08974.35664.01772.60713.31532.11715.03755.03754.60244.60241.78811.7881

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 126.561 C1 C6 O5 114.524
C2 C3 N4 104.792 C2 C3 H9 112.572
C2 C3 H10 112.572 C2 O5 C6 106.100
C3 C2 O5 103.797 C3 C2 H7 113.395
C3 C2 H8 113.395 C3 N4 C6 106.397
N4 C3 H9 109.718 N4 C3 H10 109.718
N4 C6 O5 118.915 O5 C2 H7 108.547
O5 C2 H8 108.547 C6 C1 H11 109.920
C6 C1 H12 109.920 C6 C1 H13 109.314
H7 C2 H8 108.865 H9 C3 H10 107.444
H11 C1 H12 107.778 H11 C1 H13 109.946
H12 C1 H13 109.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability