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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBEultrafine/aug-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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-245.849881
Energy at 298.15K 
HF Energy-245.849881
Nuclear repulsion energy161.229819
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 PBEPBEultrafine/aug-cc-pVTZ
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' 3208 3173 0.03 137.02 0.10 0.18
2 A' 3183 3147 0.10 64.81 0.59 0.74
3 A' 3162 3127 0.58 96.28 0.36 0.53
4 A' 1542 1525 8.71 4.56 0.01 0.01
5 A' 1420 1404 26.84 32.07 0.22 0.37
6 A' 1353 1338 3.90 5.78 0.02 0.04
7 A' 1200 1187 4.40 18.73 0.08 0.15
8 A' 1109 1096 20.88 3.54 0.43 0.60
9 A' 1091 1079 6.24 13.41 0.05 0.10
10 A' 1014 1002 9.55 2.81 0.72 0.84
11 A' 900 890 7.96 2.07 0.73 0.84
12 A' 888 878 0.79 0.91 0.62 0.77
13 A' 829 820 20.07 6.08 0.11 0.20
14 A" 876 867 5.93 0.25 0.75 0.86
15 A" 835 826 0.44 0.42 0.75 0.86
16 A" 754 746 62.87 0.08 0.75 0.86
17 A" 630 623 1.79 0.18 0.75 0.86
18 A" 594 587 12.11 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12294.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 12156.7 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
0.32421 0.31789 0.16051

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.367 0.000
C2 0.623 -0.961 0.000
C3 0.000 1.131 0.000
N4 -0.694 -1.000 0.000
O5 -1.100 0.348 0.000
H6 2.161 0.698 0.000
H7 1.171 -1.900 0.000
H8 -0.182 2.201 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42181.36312.27882.22961.08322.26752.2541
C21.42182.18271.31722.16402.26251.08733.2627
C31.36312.18272.24081.35022.20363.24911.0853
N42.27881.31722.24081.40803.32142.07103.2413
O52.22962.16401.35021.40803.27973.19592.0677
H61.08322.26252.20363.32143.27972.78002.7832
H72.26751.08733.24912.07103.19592.78004.3182
H82.25413.26271.08533.24132.06772.78324.3182

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.557 C1 C2 H7 128.823
C1 C3 O5 110.513 C1 C3 H8 133.718
C2 C1 C3 103.190 C2 C1 H6 128.656
C2 N4 O5 105.093 C3 C1 H6 128.154
C3 O5 N4 108.647 N4 C2 H7 118.620
O5 C3 H8 115.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.264      
2 C -0.180      
3 C -0.416      
4 N -0.364      
5 O -0.241      
6 H 0.385      
7 H 0.526      
8 H 0.553      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.493 1.492 0.000 2.906
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.783 -2.656 0.000
y -2.656 -25.545 0.000
z 0.000 0.000 -30.360
Traceless
 xyz
x -0.831 -2.656 0.000
y -2.656 4.027 0.000
z 0.000 0.000 -3.196
Polar
3z2-r2-6.392
x2-y2-3.239
xy-2.656
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.390 -0.048 0.000
y -0.048 8.159 0.000
z 0.000 0.000 4.633


<r2> (average value of r2) Å2
<r2> 77.671
(<r2>)1/2 8.813