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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-242.821191
Energy at 298.15K 
HF Energy-242.821191
Nuclear repulsion energy158.538739
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/STO-3G
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' 3572 3154 25.97 55.53 0.13 0.23
2 A' 3528 3115 27.70 20.81 0.46 0.63
3 A' 3520 3108 16.71 66.31 0.52 0.68
4 A' 1700 1501 8.15 1.80 0.16 0.28
5 A' 1516 1339 31.90 16.49 0.52 0.69
6 A' 1473 1301 1.61 7.17 0.28 0.43
7 A' 1302 1150 3.30 6.03 0.26 0.42
8 A' 1209 1068 5.87 12.13 0.37 0.54
9 A' 1172 1035 1.69 3.51 0.22 0.36
10 A' 1111 981 0.41 7.59 0.64 0.78
11 A' 1046 923 12.20 4.68 0.14 0.24
12 A' 939 829 1.61 4.95 0.75 0.86
13 A' 924 816 1.52 0.16 0.75 0.86
14 A" 942 832 0.19 1.02 0.75 0.86
15 A" 902 797 1.56 1.95 0.75 0.86
16 A" 808 713 31.07 1.15 0.75 0.86
17 A" 641 566 4.77 0.05 0.75 0.86
18 A" 595 526 0.56 0.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13449.5 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 11875.9 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/STO-3G
ABC
0.31348 0.30767 0.15527

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.136 0.385 0.000
C2 0.655 -0.960 0.000
C3 0.000 1.147 0.000
N4 -0.704 -1.029 0.000
O5 -1.132 0.338 0.000
H6 2.171 0.723 0.000
H7 1.237 -1.886 0.000
H8 -0.175 2.228 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42791.36732.31972.26761.08902.27342.2615
C21.42792.20591.36062.20842.26481.09413.2940
C31.36732.20592.28631.39062.21153.27541.0954
N42.31971.36062.28631.43243.36622.12193.2993
O52.26762.20841.39061.43243.32453.24952.1179
H61.08902.26482.21153.36623.32452.77142.7868
H72.27341.09413.27542.12193.24952.77144.3498
H82.26153.29401.09543.29932.11792.78684.3498

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.565 C1 C2 H7 128.200
C1 C3 O5 110.609 C1 C3 H8 133.051
C2 C1 C3 104.193 C2 C1 H6 127.763
C2 N4 O5 104.473 C3 C1 H6 128.045
C3 O5 N4 108.160 N4 C2 H7 119.235
O5 C3 H8 116.341
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 C -0.032      
3 C 0.010      
4 N -0.114      
5 O -0.067      
6 H 0.103      
7 H 0.108      
8 H 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.904 1.420 0.000 2.375
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.628 -2.152 0.000
y -2.152 -24.236 0.000
z 0.000 0.000 -26.872
Traceless
 xyz
x -1.074 -2.152 0.000
y -2.152 2.514 0.000
z 0.000 0.000 -1.440
Polar
3z2-r2-2.880
x2-y2-2.392
xy-2.152
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.752 -0.265 0.000
y -0.265 4.389 0.000
z 0.000 0.000 0.808


<r2> (average value of r2) Å2
<r2> 78.150
(<r2>)1/2 8.840