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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-245.955172
Energy at 298.15K 
HF Energy-245.955172
Nuclear repulsion energy162.902171
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 B1B95/6-31+G**
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' 3330 3186 0.24 124.71 0.12 0.21
2 A' 3307 3163 0.22 51.74 0.69 0.82
3 A' 3287 3144 0.82 93.72 0.40 0.57
4 A' 1635 1564 11.47 2.55 0.04 0.07
5 A' 1504 1439 34.68 39.98 0.22 0.36
6 A' 1425 1363 6.06 3.66 0.11 0.20
7 A' 1268 1213 8.82 14.90 0.13 0.22
8 A' 1182 1130 17.02 1.57 0.50 0.67
9 A' 1147 1098 9.54 14.16 0.11 0.19
10 A' 1057 1011 4.98 2.91 0.60 0.75
11 A' 953 911 37.63 5.27 0.15 0.26
12 A' 927 887 4.21 2.61 0.63 0.77
13 A' 920 880 2.57 2.28 0.70 0.82
14 A" 917 877 6.89 0.64 0.75 0.86
15 A" 881 842 0.01 0.46 0.75 0.86
16 A" 788 753 68.63 0.01 0.75 0.86
17 A" 653 624 1.05 0.38 0.75 0.86
18 A" 608 582 14.72 0.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12893.2 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 12333.6 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 B1B95/6-31+G**
ABC
0.33104 0.32418 0.16379

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.364 0.000
C2 0.611 -0.957 0.000
C3 0.000 1.121 0.000
N4 -0.694 -0.980 0.000
O5 -1.084 0.340 0.000
H6 2.150 0.690 0.000
H7 1.148 -1.895 0.000
H8 -0.185 2.183 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41731.35562.26162.20831.07662.25862.2414
C21.41732.16611.30612.13442.25471.07993.2396
C31.35562.16612.21261.33582.19313.22641.0781
N42.26161.30612.21261.37593.29912.05693.2036
O52.20832.13441.33581.37593.25313.15782.0505
H61.07662.25472.19313.29913.25312.77262.7717
H72.25861.07993.22642.05693.15782.77264.2898
H82.24143.23961.07813.20362.05052.77174.2898

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.224 C1 C2 H7 128.989
C1 C3 O5 110.274 C1 C3 H8 133.829
C2 C1 C3 102.717 C2 C1 H6 128.881
C2 N4 O5 105.431 C3 C1 H6 128.402
C3 O5 N4 109.354 N4 C2 H7 118.787
O5 C3 H8 115.897
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.009      
2 C -0.134      
3 C -0.099      
4 N -0.261      
5 O -0.021      
6 H 0.172      
7 H 0.175      
8 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.674 1.588 0.000 3.110
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.673 -2.679 0.000
y -2.679 -25.074 0.000
z 0.000 0.000 -30.275
Traceless
 xyz
x -0.998 -2.679 0.000
y -2.679 4.400 0.000
z 0.000 0.000 -3.401
Polar
3z2-r2-6.803
x2-y2-3.599
xy-2.679
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.736 -0.102 0.000
y -0.102 7.245 0.000
z 0.000 0.000 3.955


<r2> (average value of r2) Å2
<r2> 76.377
(<r2>)1/2 8.739