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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-245.417475
Energy at 298.15K-245.422122
HF Energy-244.649927
Nuclear repulsion energy162.478960
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 CCSD=FULL/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' 3340 3340 0.61      
2 A' 3318 3318 0.18      
3 A' 3303 3303 2.26      
4 A' 1622 1622 14.38      
5 A' 1582 1582 26.75      
6 A' 1384 1384 3.57      
7 A' 1285 1285 0.16      
8 A' 1201 1201 36.03      
9 A' 1138 1138 11.53      
10 A' 1121 1121 4.55      
11 A' 1091 1091 35.33      
12 A' 934 934 18.52      
13 A' 920 920 14.84      
14 A" 885 885 1.91      
15 A" 864 864 17.75      
16 A" 779 779 29.67      
17 A" 663 663 25.38      
18 A" 625 625 5.28      

Unscaled Zero Point Vibrational Energy (zpe) 13026.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13026.6 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 CCSD=FULL/cc-pVDZ
ABC
0.33493 0.31840 0.16323

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.110 0.312 0.000
C2 0.000 1.095 0.000
N3 1.137 0.467 0.000
C4 0.758 -0.880 0.000
C5 -0.604 -0.962 0.000
H6 -0.169 2.171 0.000
H7 1.493 -1.684 0.000
H8 -1.328 -1.773 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.35792.25192.21631.37112.08293.28052.0973
C21.35791.29872.11552.14391.08873.15463.1608
N32.25191.29871.39902.25232.14632.18003.3306
C42.21632.11551.39901.36513.18831.08922.2694
C51.37112.14392.25231.36513.16272.21841.0871
H62.08291.08872.14633.18833.16274.19744.1109
H73.28053.15462.18001.08922.21844.19742.8226
H82.09733.16083.33062.26941.08714.11092.8226

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.890 O1 C2 H6 116.278
O1 C5 C4 108.192 O1 C5 H8 116.648
C2 O1 C5 103.551 C2 N3 C4 103.232
N3 C2 H6 127.832 N3 C4 C5 109.136
N3 C4 H7 121.866 C4 C5 H8 135.161
C5 C4 H7 128.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability