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All results from a given calculation for C3H3NO (Oxazole)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-244.731499
Energy at 298.15K-244.736353
HF Energy-244.731499
Nuclear repulsion energy165.750498
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 HF/Def2TZVPP
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' 3457 3133 0.96      
2 A' 3423 3102 0.62      
3 A' 3420 3100 4.04      
4 A' 1754 1589 32.14      
5 A' 1694 1535 29.41      
6 A' 1494 1354 12.80      
7 A' 1399 1268 0.14      
8 A' 1283 1163 38.06      
9 A' 1217 1103 17.44      
10 A' 1179 1068 15.93      
11 A' 1153 1045 42.14      
12 A' 1012 917 13.89      
13 A' 990 897 24.70      
14 A" 1030 933 2.66      
15 A" 1005 911 7.68      
16 A" 876 794 47.71      
17 A" 709 643 32.13      
18 A" 671 608 12.58      

Unscaled Zero Point Vibrational Energy (zpe) 13881.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 12581.7 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 HF/Def2TZVPP
ABC
0.34378 0.33584 0.16988

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.075 0.306 0.000
C2 0.000 1.084 0.000
N3 1.100 0.465 0.000
C4 0.736 -0.869 0.000
C5 -0.586 -0.954 0.000
H6 -0.162 2.137 0.000
H7 1.457 -1.652 0.000
H8 -1.289 -1.752 0.000

Atom - Atom Distances (Å)
  O1 C2 N3 C4 C5 H6 H7 H8
O11.32722.18072.15821.35172.04623.20112.0687
C21.32721.26152.08622.12051.06583.09983.1148
N32.18071.26151.38262.20362.09462.14743.2590
C42.15822.08621.38261.32423.13681.06542.2089
C51.35172.12052.20361.32423.12022.15911.0633
H62.04621.06582.09463.13683.12024.12094.0488
H73.20113.09982.14741.06542.15914.12092.7482
H82.06873.11483.25902.20891.06334.04882.7482

picture of Oxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 N3 114.761 O1 C2 H6 117.118
O1 C5 C4 107.513 O1 C5 H8 117.373
C2 O1 C5 104.660 C2 N3 C4 104.088
N3 C2 H6 128.121 N3 C4 C5 108.979
N3 C4 H7 122.087 C4 C5 H8 135.114
C5 C4 H7 128.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.344      
2 C 0.333      
3 N -0.396      
4 C -0.014      
5 C 0.085      
6 H 0.115      
7 H 0.096      
8 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.359 -0.758 0.000 1.556
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.545 -1.380 0.000
y -1.380 -22.518 0.000
z 0.000 0.000 -30.118
Traceless
 xyz
x -5.227 -1.380 0.000
y -1.380 8.313 0.000
z 0.000 0.000 -3.086
Polar
3z2-r2-6.173
x2-y2-9.027
xy-1.380
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.301 0.040 0.000
y 0.040 6.608 0.000
z 0.000 0.000 3.886


<r2> (average value of r2) Å2
<r2> 74.212
(<r2>)1/2 8.615