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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD(T)/TZVP

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(T)/TZVP
 hartrees
Energy at 0K-245.538275
Energy at 298.15K-245.542743
HF Energy-244.707793
Nuclear repulsion energy162.685511
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(T)/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' 3324 3199        
2 A' 3300 3176        
3 A' 3288 3165        
4 A' 1576 1517        
5 A' 1541 1483        
6 A' 1363 1312        
7 A' 1294 1245        
8 A' 1180 1135        
9 A' 1111 1069        
10 A' 1107 1066        
11 A' 1076 1036        
12 A' 925 890        
13 A' 912 877        
14 A" 789 760        
15 A" 752 724        
16 A" 676 651        
17 A" 628 605        
18 A" 560 539        

Unscaled Zero Point Vibrational Energy (zpe) 12700.4 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 12224.1 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(T)/TZVP
ABC
0.33475 0.32000 0.16360

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.108 0.310 0.000
C2 0.000 1.101 0.000
N3 1.130 0.469 0.000
C4 0.755 -0.881 0.000
C5 -0.598 -0.967 0.000
H6 -0.168 2.166 0.000
H7 1.487 -1.673 0.000
H8 -1.312 -1.773 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36112.24342.21111.37552.08043.26522.0928
C21.36111.29522.12162.15331.07803.14713.1590
N32.24341.29521.40142.24692.13662.17083.3144
C42.21112.12161.40141.35553.18411.07772.2504
C51.37552.15332.24691.35553.16292.20061.0760
H62.08041.07802.13663.18413.16294.18004.1015
H73.26523.14712.17081.07772.20064.18002.7999
H82.09283.15903.31442.25041.07604.10152.7999

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.233 O1 C2 H6 116.593
O1 C5 C4 108.118 O1 C5 H8 116.700
C2 O1 C5 103.782 C2 N3 C4 103.701
N3 C2 H6 128.174 N3 C4 C5 109.166
N3 C4 H7 121.707 C4 C5 H8 135.182
C5 C4 H7 129.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability