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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: CCSD(T)/cc-pVTZ

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)/cc-pVTZ
 hartrees
Energy at 0K-245.675959
Energy at 298.15K-245.680573
HF Energy-244.718262
Nuclear repulsion energy162.913973
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)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3310 3226        
2 A' 3286 3203        
3 A' 3276 3193        
4 A' 1576 1536        
5 A' 1540 1502        
6 A' 1358 1324        
7 A' 1279 1247        
8 A' 1177 1148        
9 A' 1112 1084        
10 A' 1108 1080        
11 A' 1074 1047        
12 A' 919 896        
13 A' 909 886        
14 A" 872 850        
15 A" 851 830        
16 A" 763 744        
17 A" 656 639        
18 A" 618 602        

Unscaled Zero Point Vibrational Energy (zpe) 12841.6 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 12518.0 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)/cc-pVTZ
ABC
0.33600 0.32058 0.16405

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.106 0.312 0.000
C2 0.000 1.098 0.000
N3 1.130 0.467 0.000
C4 0.754 -0.881 0.000
C5 -0.599 -0.964 0.000
H6 -0.165 2.162 0.000
H7 1.481 -1.675 0.000
H8 -1.312 -1.768 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.35682.24142.20921.37252.07593.26122.0902
C21.35681.29502.11822.14751.07663.14373.1524
N32.24141.29501.39942.24452.13382.16983.3104
C42.20922.11821.39941.35553.17911.07612.2480
C51.37252.14752.24451.35553.15622.19801.0746
H62.07591.07662.13383.17913.15624.17504.0944
H73.26123.14372.16981.07612.19804.17502.7940
H82.09023.15243.31042.24801.07464.09442.7940

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.373 O1 C2 H6 116.620
O1 C5 C4 108.157 O1 C5 H8 116.810
C2 O1 C5 103.775 C2 N3 C4 103.586
N3 C2 H6 128.007 N3 C4 C5 109.109
N3 C4 H7 121.900 C4 C5 H8 135.033
C5 C4 H7 128.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability