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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31+G**
 hartrees
Energy at 0K-245.820372
Energy at 298.15K 
HF Energy-245.560466
Nuclear repulsion energy161.509163
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 B2PLYP=FULLultrafine/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' 3335 3335 0.12 131.71 0.11 0.21
2 A' 3314 3314 0.33 49.43 0.75 0.85
3 A' 3294 3294 0.59 92.03 0.41 0.58
4 A' 1601 1601 10.03 4.51 0.00 0.01
5 A' 1475 1475 33.86 36.52 0.27 0.42
6 A' 1410 1410 4.14 4.93 0.04 0.07
7 A' 1254 1254 6.26 14.70 0.09 0.17
8 A' 1164 1164 22.09 4.29 0.32 0.49
9 A' 1130 1130 7.54 12.89 0.07 0.13
10 A' 1057 1057 7.23 2.57 0.64 0.78
11 A' 931 931 9.44 3.78 0.64 0.78
12 A' 914 914 0.82 1.21 0.54 0.70
13 A' 873 873 25.65 7.63 0.15 0.26
14 A" 892 892 8.92 0.32 0.75 0.86
15 A" 852 852 0.31 0.80 0.75 0.86
16 A" 777 777 68.85 0.07 0.75 0.86
17 A" 637 637 1.72 0.27 0.75 0.86
18 A" 596 596 14.32 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12752.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12752.7 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 B2PLYP=FULLultrafine/6-31+G**
ABC
0.32561 0.31851 0.16101

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.128 0.368 0.000
C2 0.622 -0.961 0.000
C3 0.000 1.131 0.000
N4 -0.694 -0.998 0.000
O5 -1.097 0.346 0.000
H6 2.153 0.695 0.000
H7 1.166 -1.894 0.000
H8 -0.184 2.193 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.42211.36182.27732.22511.07642.26182.2474
C21.42212.18261.31662.15952.25601.07943.2551
C31.36182.18262.23951.34902.19693.24151.0774
N42.27731.31662.23951.40323.31302.06413.2314
O52.22512.15951.34901.40323.26903.18362.0601
H61.07642.25602.19693.31303.26902.77102.7756
H72.26181.07943.24152.06413.18362.77104.3033
H82.24743.25511.07743.23142.06012.77564.3033

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.455 C1 C2 H7 128.910
C1 C3 O5 110.332 C1 C3 H8 133.908
C2 C1 C3 103.236 C2 C1 H6 128.561
C2 N4 O5 105.072 C3 C1 H6 128.203
C3 O5 N4 108.905 N4 C2 H7 118.635
O5 C3 H8 115.760
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 C -0.093      
3 C -0.042      
4 N -0.251      
5 O -0.063      
6 H 0.164      
7 H 0.168      
8 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.772 1.589 0.000 3.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.216 -2.733 -0.006
y -2.733 -25.522 -0.000
z -0.006 -0.000 -30.738
Traceless
 xyz
x -1.086 -2.733 -0.006
y -2.733 4.455 -0.000
z -0.006 -0.000 -3.369
Polar
3z2-r2-6.738
x2-y2-3.694
xy-2.733
xz-0.006
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.869 -0.103 0.002
y -0.103 7.400 0.001
z 0.002 0.001 4.082


<r2> (average value of r2) Å2
<r2> 77.619
(<r2>)1/2 8.810