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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: QCISD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31+G**
 hartrees
Energy at 0K-245.408571
Energy at 298.15K-245.413158
HF Energy-244.642699
Nuclear repulsion energy162.603747
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 QCISD/6-31+G**
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' 3377 3192 0.66      
2 A' 3357 3174 0.21      
3 A' 3342 3159 2.48      
4 A' 1625 1536 12.22      
5 A' 1583 1496 38.74      
6 A' 1394 1318 4.94      
7 A' 1307 1235 0.12      
8 A' 1202 1137 36.21      
9 A' 1133 1071 17.72      
10 A' 1125 1064 1.83      
11 A' 1083 1024 43.67      
12 A' 926 875 17.46      
13 A' 916 866 15.09      
14 A" 859 812 7.20      
15 A" 837 791 28.52      
16 A" 750 709 30.86      
17 A" 647 612 31.65      
18 A" 600 567 3.51      

Unscaled Zero Point Vibrational Energy (zpe) 13030.4 cm-1
Scaled (by 0.9454) Zero Point Vibrational Energy (zpe) 12318.9 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 QCISD/6-31+G**
ABC
0.33385 0.32015 0.16343

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.107 0.311 0.000
C2 0.000 1.103 0.000
N3 1.130 0.467 0.000
C4 0.755 -0.880 0.000
C5 -0.599 -0.969 0.000
H6 -0.167 2.165 0.000
H7 1.485 -1.671 0.000
H8 -1.311 -1.772 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36132.24282.21071.37642.07943.26242.0926
C21.36131.29642.12172.15591.07543.14583.1595
N32.24281.29641.39862.24732.13632.16733.3128
C42.21072.12171.39861.35703.18171.07562.2509
C51.37642.15592.24731.35703.16322.19861.0739
H62.07941.07542.13633.18173.16324.17624.1001
H73.26243.14582.16731.07562.19864.17622.7977
H82.09263.15953.31282.25091.07394.10012.7977

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.082 O1 C2 H6 116.667
O1 C5 C4 107.947 O1 C5 H8 116.759
C2 O1 C5 103.899 C2 N3 C4 103.800
N3 C2 H6 128.252 N3 C4 C5 109.273
N3 C4 H7 121.777 C4 C5 H8 135.294
C5 C4 H7 128.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability