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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-246.028329
Energy at 298.15K 
HF Energy-246.028329
Nuclear repulsion energy163.511609
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-pVTZ
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' 3310 3168 0.09 115.37 0.13 0.23
2 A' 3282 3141 0.02 55.63 0.59 0.74
3 A' 3263 3123 1.32 90.97 0.37 0.54
4 A' 1629 1559 10.23 1.61 0.10 0.19
5 A' 1494 1430 31.33 32.11 0.23 0.38
6 A' 1423 1361 7.39 2.21 0.18 0.31
7 A' 1265 1210 7.78 13.34 0.16 0.27
8 A' 1176 1126 18.46 1.57 0.65 0.79
9 A' 1145 1096 8.73 11.68 0.14 0.25
10 A' 1053 1008 5.04 3.32 0.62 0.77
11 A' 947 907 31.41 4.63 0.14 0.25
12 A' 930 890 5.63 3.40 0.66 0.79
13 A' 923 884 4.07 1.14 0.75 0.86
14 A" 928 888 5.21 0.89 0.75 0.86
15 A" 893 855 0.13 0.10 0.75 0.86
16 A" 793 759 57.21 0.19 0.75 0.86
17 A" 660 631 1.73 0.25 0.75 0.86
18 A" 617 590 14.04 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12864.1 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 12312.2 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-pVTZ
ABC
0.33347 0.32667 0.16502

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.119 0.363 0.000
C2 0.609 -0.954 0.000
C3 0.000 1.115 0.000
N4 -0.690 -0.977 0.000
O5 -1.081 0.339 0.000
H6 2.141 0.690 0.000
H7 1.145 -1.888 0.000
H8 -0.180 2.175 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41301.34872.25182.20051.07262.25142.2296
C21.41302.15761.29962.12832.24751.07643.2273
C31.34872.15762.20311.33072.18283.21431.0747
N42.25181.29962.20311.37273.28552.04893.1927
O52.20052.12831.33071.37273.24093.14872.0449
H61.07262.24752.18283.28553.24092.76392.7552
H72.25141.07643.21432.04893.14872.76394.2735
H82.22963.22731.07473.19272.04492.75524.2735

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.155 C1 C2 H7 128.979
C1 C3 O5 110.417 C1 C3 H8 133.539
C2 C1 C3 102.728 C2 C1 H6 128.919
C2 N4 O5 105.551 C3 C1 H6 128.353
C3 O5 N4 109.150 N4 C2 H7 118.866
O5 C3 H8 116.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.238      
2 C -0.068      
3 C 0.014      
4 N -0.082      
5 O -0.087      
6 H 0.156      
7 H 0.146      
8 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.456 1.494 0.000 2.875
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.180 -2.550 0.000
y -2.550 -24.878 0.000
z 0.000 0.000 -29.801
Traceless
 xyz
x -0.840 -2.550 0.000
y -2.550 4.113 0.000
z 0.000 0.000 -3.273
Polar
3z2-r2-6.545
x2-y2-3.302
xy-2.550
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.464 -0.196 0.000
y -0.196 7.100 0.000
z 0.000 0.000 3.580


<r2> (average value of r2) Å2
<r2> 75.697
(<r2>)1/2 8.700