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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-44.291992
Energy at 298.15K-44.296508
HF Energy-43.561722
Nuclear repulsion energy83.631218
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/CEP-121G*
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' 3327 3170 0.97      
2 A' 3312 3156 0.22      
3 A' 3296 3141 2.51      
4 A' 1536 1464 7.21      
5 A' 1503 1433 31.91      
6 A' 1355 1291 5.92      
7 A' 1275 1214 0.86      
8 A' 1188 1132 39.18      
9 A' 1133 1080 4.73      
10 A' 1110 1058 2.82      
11 A' 1083 1032 47.38      
12 A' 906 863 25.25      
13 A' 898 856 7.35      
14 A" 797 760 68.39      
15 A" 788 751 0.37      
16 A" 706 673 19.75      
17 A" 655 624 23.12      
18 A" 604 575 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 12736.3 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 12135.2 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/CEP-121G*
ABC
0.33214 0.31404 0.16142

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.117 0.313 0.000
C2 0.000 1.106 0.000
N3 1.143 0.464 0.000
C4 0.764 -0.884 0.000
C5 -0.607 -0.968 0.000
H6 -0.171 2.175 0.000
H7 1.498 -1.679 0.000
H8 -1.331 -1.770 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36972.26452.22971.37932.08803.28712.0948
C21.36971.31092.13172.16171.08203.16233.1697
N32.26451.31091.39952.26112.15712.17183.3332
C42.22972.13171.39951.37413.19821.08182.2752
C51.37932.16172.26111.37413.17322.22161.0804
H62.08801.08202.15713.19823.17324.19934.1122
H73.28713.16232.17181.08182.22164.19932.8302
H82.09483.16973.33322.27521.08044.11222.8302

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.275 O1 C2 H6 116.287
O1 C5 C4 108.151 O1 C5 H8 116.255
C2 O1 C5 103.688 C2 N3 C4 103.667
N3 C2 H6 128.438 N3 C4 C5 109.219
N3 C4 H7 121.628 C4 C5 H8 135.595
C5 C4 H7 129.153
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability