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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-245.840455
Energy at 298.15K 
HF Energy-245.840455
Nuclear repulsion energy161.057218
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 PBEPBE/TZVP
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' 3219 3183 0.13 129.69 0.11 0.20
2 A' 3194 3158 0.26 64.47 0.60 0.75
3 A' 3172 3136 0.45 94.20 0.36 0.53
4 A' 1546 1528 7.83 3.55 0.05 0.09
5 A' 1422 1406 26.90 30.25 0.28 0.44
6 A' 1355 1340 4.22 3.72 0.07 0.12
7 A' 1205 1192 4.81 14.49 0.13 0.24
8 A' 1113 1101 23.82 4.34 0.50 0.67
9 A' 1092 1080 7.76 10.41 0.07 0.12
10 A' 1016 1005 10.88 3.35 0.72 0.84
11 A' 904 893 6.00 4.03 0.68 0.81
12 A' 890 880 0.26 1.17 0.58 0.73
13 A' 816 807 22.16 6.20 0.15 0.26
14 A" 851 841 10.27 1.46 0.75 0.86
15 A" 817 808 0.28 0.00 0.75 0.86
16 A" 748 740 62.35 0.35 0.75 0.86
17 A" 622 615 1.27 0.25 0.75 0.86
18 A" 586 580 12.13 0.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12283.8 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 12146.2 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 PBEPBE/TZVP
ABC
0.32370 0.31704 0.16017

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.131 0.369 0.000
C2 0.623 -0.960 0.000
C3 0.000 1.131 0.000
N4 -0.694 -1.004 0.000
O5 -1.101 0.348 0.000
H6 2.163 0.698 0.000
H7 1.172 -1.900 0.000
H8 -0.184 2.201 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42281.36412.28342.23241.08412.26862.2559
C21.42282.18251.31782.16472.26401.08793.2632
C31.36412.18252.24501.35142.20643.24961.0858
N42.28341.31782.24501.41193.32632.07013.2453
O52.23242.16471.35141.41193.28373.19702.0676
H61.08412.26402.20643.32633.28372.78092.7877
H72.26861.08793.24962.07013.19702.78094.3195
H82.25593.26321.08583.24532.06762.78774.3195

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.798 C1 C2 H7 128.768
C1 C3 O5 110.591 C1 C3 H8 133.777
C2 C1 C3 103.078 C2 C1 H6 128.637
C2 N4 O5 104.884 C3 C1 H6 128.285
C3 O5 N4 108.649 N4 C2 H7 118.434
O5 C3 H8 115.632
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.021      
2 C -0.222      
3 C -0.118      
4 N -0.011      
5 O -0.052      
6 H 0.148      
7 H 0.136      
8 H 0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.571 1.535 0.000 2.994
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.824 -2.620 0.000
y -2.620 -25.347 0.000
z 0.000 0.000 -30.333
Traceless
 xyz
x -0.985 -2.620 0.000
y -2.620 4.231 0.000
z 0.000 0.000 -3.247
Polar
3z2-r2-6.493
x2-y2-3.477
xy-2.620
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.823 -0.139 0.000
y -0.139 7.487 0.000
z 0.000 0.000 3.831


<r2> (average value of r2) Å2
<r2> 77.754
(<r2>)1/2 8.818