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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD(T)/6-31G*

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)/6-31G*
 hartrees
Energy at 0K-245.398659
Energy at 298.15K-245.403193
HF Energy-244.628049
Nuclear repulsion energy162.214952
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)/6-31G*
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' 3314 3189        
2 A' 3295 3170        
3 A' 3278 3154        
4 A' 1596 1536        
5 A' 1558 1499        
6 A' 1373 1321        
7 A' 1289 1240        
8 A' 1191 1146        
9 A' 1122 1079        
10 A' 1121 1078        
11 A' 1080 1039        
12 A' 918 884        
13 A' 909 874        
14 A" 823 791        
15 A" 812 781        
16 A" 724 696        
17 A" 651 626        
18 A" 604 581        

Unscaled Zero Point Vibrational Energy (zpe) 12828.4 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 12342.2 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 CCSD(T)/6-31G*
ABC
0.33328 0.31783 0.16268

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.111 0.311 0.000
C2 0.000 1.104 0.000
N3 1.135 0.468 0.000
C4 0.757 -0.882 0.000
C5 -0.600 -0.970 0.000
H6 -0.169 2.174 0.000
H7 1.493 -1.677 0.000
H8 -1.320 -1.777 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36462.25102.21641.37942.08753.27652.0990
C21.36461.30052.12542.15881.08353.15643.1689
N32.25101.30051.40252.25332.14682.17503.3266
C42.21642.12541.40251.35953.19341.08362.2611
C51.37942.15882.25331.35953.17362.20951.0815
H62.08751.08352.14683.19343.17364.19444.1156
H73.27653.15642.17501.08362.20954.19442.8149
H82.09903.16893.32662.26111.08154.11562.8149

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.243 O1 C2 H6 116.548
O1 C5 C4 108.042 O1 C5 H8 116.535
C2 O1 C5 103.762 C2 N3 C4 103.619
N3 C2 H6 128.209 N3 C4 C5 109.334
N3 C4 H7 121.533 C4 C5 H8 135.423
C5 C4 H7 129.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability