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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B3PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-246.024508
Energy at 298.15K 
HF Energy-246.024508
Nuclear repulsion energy162.958566
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 B3PW91/6-311+G(3df,2p)
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' 3287 3147 0.16 117.72 0.10 0.19
2 A' 3261 3122 0.17 54.61 0.61 0.76
3 A' 3241 3102 0.67 86.77 0.36 0.53
4 A' 1607 1539 10.44 2.76 0.03 0.05
5 A' 1474 1411 31.19 37.85 0.19 0.32
6 A' 1409 1349 6.63 3.36 0.08 0.15
7 A' 1255 1201 6.31 16.77 0.09 0.16
8 A' 1163 1113 19.88 2.15 0.40 0.58
9 A' 1134 1086 8.63 14.17 0.08 0.15
10 A' 1048 1003 5.75 2.49 0.58 0.73
11 A' 938 898 18.38 2.62 0.39 0.56
12 A' 924 885 0.44 1.75 0.58 0.73
13 A' 918 879 19.52 4.21 0.17 0.29
14 A" 922 882 5.82 0.27 0.75 0.86
15 A" 884 846 0.15 0.60 0.75 0.86
16 A" 784 751 62.67 0.13 0.75 0.86
17 A" 656 628 1.49 0.19 0.75 0.86
18 A" 615 588 13.45 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12759.5 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 12214.7 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 B3PW91/6-311+G(3df,2p)
ABC
0.33116 0.32455 0.16391

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.122 0.363 0.000
C2 0.612 -0.958 0.000
C3 0.000 1.119 0.000
N4 -0.692 -0.980 0.000
O5 -1.084 0.342 0.000
H6 2.147 0.690 0.000
H7 1.150 -1.894 0.000
H8 -0.179 2.182 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41671.35322.25782.20681.07572.25722.2365
C21.41672.16571.30392.13712.25271.07963.2385
C31.35322.16572.21101.33432.18953.22531.0778
N42.25781.30392.21101.37963.29422.05633.2042
O52.20682.13711.33431.37963.25023.16122.0509
H61.07572.25272.18953.29423.25022.76962.7634
H72.25721.07963.22532.05633.16122.76964.2874
H82.23653.23851.07783.20422.05092.76344.2874

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.109 C1 C2 H7 128.941
C1 C3 O5 110.396 C1 C3 H8 133.529
C2 C1 C3 102.844 C2 C1 H6 128.822
C2 N4 O5 105.542 C3 C1 H6 128.334
C3 O5 N4 109.109 N4 C2 H7 118.949
O5 C3 H8 116.075
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.109      
2 C 0.349      
3 C 0.308      
4 N -0.569      
5 O -0.446      
6 H 0.149      
7 H 0.158      
8 H 0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.559 1.525 0.000 2.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.463 -2.689 0.000
y -2.689 -25.091 0.000
z 0.000 0.000 -30.145
Traceless
 xyz
x -0.845 -2.689 0.000
y -2.689 4.213 0.000
z 0.000 0.000 -3.368
Polar
3z2-r2-6.736
x2-y2-3.372
xy-2.689
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.983 -0.080 0.000
y -0.080 7.626 0.000
z 0.000 0.000 4.428


<r2> (average value of r2) Å2
<r2> 76.263
(<r2>)1/2 8.733