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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-245.962812
Energy at 298.15K 
HF Energy-245.962812
Nuclear repulsion energy162.926707
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 B1B95/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' 3324 3195 0.24 113.85 0.11 0.20
2 A' 3296 3168 0.17 55.09 0.63 0.77
3 A' 3275 3148 0.88 92.63 0.38 0.55
4 A' 1637 1573 9.76 1.40 0.10 0.18
5 A' 1509 1450 31.69 29.21 0.29 0.45
6 A' 1419 1364 6.36 2.37 0.21 0.35
7 A' 1257 1208 10.51 12.68 0.21 0.35
8 A' 1174 1128 14.71 1.77 0.75 0.86
9 A' 1140 1096 9.75 10.44 0.20 0.34
10 A' 1045 1005 5.96 4.94 0.67 0.80
11 A' 951 914 35.37 4.66 0.14 0.24
12 A' 927 891 4.18 3.96 0.74 0.85
13 A' 918 882 2.43 0.76 0.73 0.84
14 A" 916 881 4.46 1.77 0.75 0.86
15 A" 881 847 0.11 0.29 0.75 0.86
16 A" 790 759 48.73 1.09 0.75 0.86
17 A" 658 633 1.46 0.45 0.75 0.86
18 A" 616 592 13.92 1.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12865.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 12366.3 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 B1B95/cc-pVDZ
ABC
0.33094 0.32455 0.16386

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.127 0.363 0.000
C2 0.610 -0.957 0.000
C3 0.000 1.119 0.000
N4 -0.697 -0.976 0.000
O5 -1.083 0.339 0.000
H6 2.158 0.692 0.000
H7 1.145 -1.903 0.000
H8 -0.187 2.187 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41821.35672.26262.20951.08252.26592.2478
C21.41822.16381.30652.13192.26231.08643.2437
C31.35672.16382.20791.33402.20003.23111.0845
N42.26261.30652.20791.37113.30662.06163.2041
O52.20952.13191.33401.37113.25993.16052.0532
H61.08252.26232.20003.30663.25992.78532.7813
H72.26591.08643.23112.06163.16052.78534.3011
H82.24783.24371.08453.20412.05322.78134.3011

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.220 C1 C2 H7 129.080
C1 C3 O5 110.403 C1 C3 H8 133.779
C2 C1 C3 102.455 C2 C1 H6 129.068
C2 N4 O5 105.514 C3 C1 H6 128.477
C3 O5 N4 109.409 N4 C2 H7 118.701
O5 C3 H8 115.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.162      
2 C 0.135      
3 C 0.210      
4 N -0.115      
5 O -0.143      
6 H 0.009      
7 H 0.027      
8 H 0.039      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.366 1.452 0.000 2.776
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.087 -2.423 0.000
y -2.423 -24.706 0.000
z 0.000 0.000 -29.618
Traceless
 xyz
x -0.926 -2.423 0.000
y -2.423 4.147 0.000
z 0.000 0.000 -3.221
Polar
3z2-r2-6.442
x2-y2-3.381
xy-2.423
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.008 -0.272 0.000
y -0.272 6.714 0.000
z 0.000 0.000 2.679


<r2> (average value of r2) Å2
<r2> 76.059
(<r2>)1/2 8.721