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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-245.408537
Energy at 298.15K-245.413170
HF Energy-244.649394
Nuclear repulsion energy162.248792
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/cc-pVDZ
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' 3332 3197 0.65      
2 A' 3310 3175 0.20      
3 A' 3295 3162 2.41      
4 A' 1615 1549 13.27      
5 A' 1577 1513 27.01      
6 A' 1377 1321 4.17      
7 A' 1281 1229 0.17      
8 A' 1191 1143 34.98      
9 A' 1131 1085 10.89      
10 A' 1115 1070 4.93      
11 A' 1083 1039 35.44      
12 A' 928 890 19.34      
13 A' 916 879 14.10      
14 A" 880 844 1.90      
15 A" 860 825 18.05      
16 A" 773 741 29.50      
17 A" 660 633 25.27      
18 A" 621 596 5.35      

Unscaled Zero Point Vibrational Energy (zpe) 12972.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 12445.9 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/cc-pVDZ
ABC
0.33405 0.31743 0.16276

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.112 0.313 0.000
C2 0.000 1.096 0.000
N3 1.138 0.468 0.000
C4 0.759 -0.881 0.000
C5 -0.604 -0.964 0.000
H6 -0.169 2.173 0.000
H7 1.496 -1.685 0.000
H8 -1.328 -1.776 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.36032.25532.21941.37352.08563.28472.1002
C21.36031.30012.11782.14691.08993.15793.1650
N32.25531.30011.40062.25532.14862.18233.3347
C42.21942.11781.40061.36653.19171.09042.2718
C51.37352.14692.25531.36653.16692.22051.0883
H62.08561.08992.14863.19173.16694.20194.1160
H73.28473.15792.18231.09042.22054.20192.8255
H82.10023.16503.33472.27181.08834.11602.8255

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 115.917 O1 C2 H6 116.247
O1 C5 C4 108.190 O1 C5 H8 116.631
C2 O1 C5 103.499 C2 N3 C4 103.222
N3 C2 H6 127.836 N3 C4 C5 109.172
N3 C4 H7 121.848 C4 C5 H8 135.179
C5 C4 H7 128.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability