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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: PBE1PBE/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 PBE1PBE/cc-pVDZ
 hartrees
Energy at 0K-245.778841
Energy at 298.15K 
HF Energy-245.778841
Nuclear repulsion energy162.648702
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 PBE1PBE/cc-pVDZ
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' 3318 3190 0.40 114.19 0.11 0.19
2 A' 3292 3165 0.40 52.45 0.65 0.79
3 A' 3271 3145 0.56 90.84 0.39 0.56
4 A' 1631 1568 9.29 1.42 0.10 0.19
5 A' 1505 1447 31.84 29.26 0.30 0.46
6 A' 1416 1362 6.31 2.40 0.20 0.34
7 A' 1254 1206 10.00 12.75 0.21 0.34
8 A' 1171 1125 14.69 1.81 0.75 0.86
9 A' 1139 1095 10.04 10.50 0.20 0.33
10 A' 1046 1005 6.24 4.76 0.67 0.80
11 A' 954 918 36.03 4.58 0.14 0.25
12 A' 932 896 3.90 3.94 0.74 0.85
13 A' 923 888 2.33 0.72 0.74 0.85
14 A" 914 879 4.73 1.69 0.75 0.86
15 A" 878 844 0.13 0.24 0.75 0.86
16 A" 788 758 51.35 1.00 0.75 0.86
17 A" 661 636 1.40 0.47 0.75 0.86
18 A" 618 594 14.65 1.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12855.0 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 12360.0 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 PBE1PBE/cc-pVDZ
ABC
0.32970 0.32354 0.16330

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.129 0.363 0.000
C2 0.611 -0.960 0.000
C3 0.000 1.121 0.000
N4 -0.698 -0.977 0.000
O5 -1.084 0.339 0.000
H6 2.163 0.692 0.000
H7 1.147 -1.908 0.000
H8 -0.187 2.192 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42101.35982.26612.21331.08492.27092.2530
C21.42102.16861.30932.13562.26701.08883.2510
C31.35982.16862.21081.33632.20493.23841.0869
N42.26611.30932.21081.37143.31262.06693.2092
O52.21332.13561.33631.37143.26603.16642.0578
H61.08492.26702.20493.31263.26602.79152.7876
H72.27091.08883.23842.06693.16642.79154.3108
H82.25303.25101.08693.20922.05782.78764.3108

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.125 C1 C2 H7 129.108
C1 C3 O5 110.348 C1 C3 H8 133.787
C2 C1 C3 102.470 C2 C1 H6 129.062
C2 N4 O5 105.596 C3 C1 H6 128.468
C3 O5 N4 109.460 N4 C2 H7 118.766
O5 C3 H8 115.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
2 C 0.131      
3 C 0.205      
4 N -0.121      
5 O -0.142      
6 H 0.022      
7 H 0.040      
8 H 0.052      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.373 1.464 0.000 2.789
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.132 -2.467 0.000
y -2.467 -24.723 0.000
z 0.000 0.000 -29.772
Traceless
 xyz
x -0.885 -2.467 0.000
y -2.467 4.230 0.000
z 0.000 0.000 -3.345
Polar
3z2-r2-6.690
x2-y2-3.410
xy-2.467
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.033 -0.270 0.000
y -0.270 6.740 0.000
z 0.000 0.000 2.693


<r2> (average value of r2) Å2
<r2> 76.313
(<r2>)1/2 8.736