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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-245.776339
Energy at 298.15K 
HF Energy-245.776339
Nuclear repulsion energy160.708867
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/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' 3223 3205 0.05 126.96 0.11 0.20
2 A' 3197 3178 0.06 65.62 0.62 0.77
3 A' 3175 3156 0.78 98.15 0.38 0.56
4 A' 1551 1542 7.13 2.46 0.06 0.10
5 A' 1435 1427 25.70 24.12 0.34 0.51
6 A' 1351 1344 3.36 3.48 0.11 0.19
7 A' 1192 1185 5.81 13.72 0.20 0.33
8 A' 1105 1098 16.87 3.37 0.66 0.79
9 A' 1092 1086 8.44 9.81 0.18 0.31
10 A' 1008 1002 10.15 5.47 0.72 0.84
11 A' 896 891 7.56 3.97 0.67 0.80
12 A' 884 879 0.31 1.14 0.46 0.63
13 A' 847 842 20.38 4.67 0.14 0.24
14 A" 863 858 4.66 1.91 0.75 0.86
15 A" 819 815 0.53 0.42 0.75 0.86
16 A" 751 746 47.12 1.46 0.75 0.86
17 A" 631 627 1.69 0.48 0.75 0.86
18 A" 594 591 11.75 1.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12306.5 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 12235.1 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/cc-pVDZ
ABC
0.32179 0.31622 0.15949

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.138 0.367 0.000
C2 0.623 -0.964 0.000
C3 0.000 1.134 0.000
N4 -0.702 -0.998 0.000
O5 -1.101 0.346 0.000
H6 2.179 0.700 0.000
H7 1.171 -1.914 0.000
H8 -0.191 2.212 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42741.37152.29112.23881.09272.28192.2728
C21.42742.18801.32532.16512.27781.09693.2782
C31.37152.18802.24451.35382.22133.26491.0949
N42.29111.32532.24451.40233.34382.08473.2504
O52.23882.16511.35381.40233.29873.20462.0759
H61.09272.27782.22133.34383.29872.80172.8105
H72.28191.09693.26492.08473.20462.80174.3447
H82.27283.27821.09493.25042.07592.81054.3447

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.626 C1 C2 H7 128.896
C1 C3 O5 110.466 C1 C3 H8 133.992
C2 C1 C3 102.820 C2 C1 H6 128.851
C2 N4 O5 105.049 C3 C1 H6 128.329
C3 O5 N4 109.040 N4 C2 H7 118.478
O5 C3 H8 115.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134      
2 C 0.127      
3 C 0.186      
4 N -0.115      
5 O -0.113      
6 H -0.002      
7 H 0.019      
8 H 0.031      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.241 1.411 0.000 2.648
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.154 -2.378 0.000
y -2.378 -24.981 0.000
z 0.000 0.000 -29.758
Traceless
 xyz
x -0.785 -2.378 0.000
y -2.378 3.975 0.000
z 0.000 0.000 -3.191
Polar
3z2-r2-6.381
x2-y2-3.173
xy-2.378
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.246 -0.253 0.000
y -0.253 7.106 0.000
z 0.000 0.000 2.720


<r2> (average value of r2) Å2
<r2> 77.726
(<r2>)1/2 8.816