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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-285.884102
Energy at 298.15K 
HF Energy-284.940946
Nuclear repulsion energy241.085386
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/TZVP
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 3226 3058 3.74      
2 A 3125 2962 46.52      
3 A 3114 2952 32.23      
4 A 3103 2941 7.64      
5 A 1727 1637 104.31      
6 A 1558 1477 1.98      
7 A 1528 1448 0.13      
8 A 1508 1430 9.84      
9 A 1442 1367 35.53      
10 A 1405 1332 8.29      
11 A 1363 1292 8.38      
12 A 1270 1204 116.12      
13 A 1098 1041 1.56      
14 A 1028 975 86.68      
15 A 998 946 1.35      
16 A 965 915 29.44      
17 A 919 871 27.10      
18 A 761 721 4.97      
19 A 670 635 2.12      
20 A 357 339 5.59      
21 A 3190 3024 33.43      
22 A 3184 3018 6.93      
23 A 3161 2996 2.80      
24 A 1495 1417 9.65      
25 A 1249 1184 0.31      
26 A 1238 1174 2.12      
27 A 1142 1083 0.07      
28 A 1074 1018 0.85      
29 A 841 798 0.49      
30 A 575 545 4.22      
31 A 237 225 10.92      
32 A 132 125 1.02      
33 A 116i 109i 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 24284.1 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 23018.9 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 MP2/TZVP
ABC
0.25814 0.11469 0.08312

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.341 2.121 0.000
C2 0.544 -1.495 0.000
C3 -0.991 -1.284 0.000
N4 -1.170 0.172 0.000
O5 1.081 -0.159 0.000
C6 0.000 0.674 0.000
H7 0.905 -2.012 0.889
H8 0.905 -2.012 -0.889
H9 -1.468 -1.713 0.882
H10 -1.468 -1.713 -0.882
H11 0.935 2.362 0.882
H12 0.935 2.362 -0.882
H13 -0.574 2.704 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 C6 H7 H8 H9 H10 H11 H12 H13
C13.62193.65622.46592.39661.48694.26474.26474.32954.32951.08991.08991.0856
C23.62191.54982.39161.44042.23631.08941.08942.20752.20753.97603.97604.3461
C33.65621.54981.46722.35802.19422.21662.21661.09011.09014.21664.21664.0101
N42.46592.39161.46722.27541.27283.14083.14082.10212.10213.16283.16282.6012
O52.39661.44042.35802.27541.36452.06302.06303.11273.11272.67432.67433.3072
C61.48692.23632.19421.27281.36452.97002.97002.93692.93692.12182.12182.1103
H74.26471.08942.21663.14082.06302.97001.77782.39112.97534.37404.71875.0220
H84.26471.08942.21663.14082.06302.97001.77782.97532.39114.71874.37405.0220
H94.32952.20751.09012.10213.11272.93692.39112.97531.76354.73025.04824.5918
H104.32952.20751.09012.10213.11272.93692.97532.39111.76355.04824.73024.5918
H111.08993.97604.21663.16282.67432.12184.37404.71874.73025.04821.76311.7811
H121.08993.97604.21663.16282.67432.12184.71874.37405.04824.73021.76311.7811
H131.08564.34614.01012.60123.30722.11035.02205.02204.59184.59181.78111.7811

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 126.467 C1 C6 O5 114.321
C2 C3 N4 104.844 C2 C3 H9 112.309
C2 C3 H10 112.309 C2 O5 C6 105.707
C3 C2 O5 104.043 C3 C2 H7 113.093
C3 C2 H8 113.093 C3 N4 C6 106.194
N4 C3 H9 109.686 N4 C3 H10 109.686
N4 C6 O5 119.212 O5 C2 H7 108.471
O5 C2 H8 108.471 C6 C1 H11 109.898
C6 C1 H12 109.898 C6 C1 H13 109.246
H7 C2 H8 109.365 H9 C3 H10 107.965
H11 C1 H12 107.957 H11 C1 H13 109.913
H12 C1 H13 109.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability