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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: B1B95/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-245.978392
Energy at 298.15K 
HF Energy-245.978392
Nuclear repulsion energy162.790227
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/aug-cc-pVDZ
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' 3320 3181 0.14 126.02 0.10 0.18
2 A' 3294 3156 0.17 51.79 0.64 0.78
3 A' 3273 3135 0.85 93.42 0.36 0.53
4 A' 1627 1558 10.90 3.10 0.03 0.05
5 A' 1501 1437 32.79 39.62 0.18 0.31
6 A' 1415 1356 6.16 4.54 0.06 0.12
7 A' 1256 1203 7.51 17.44 0.09 0.17
8 A' 1169 1120 16.80 1.32 0.53 0.69
9 A' 1138 1090 8.60 14.33 0.09 0.16
10 A' 1046 1002 5.72 2.95 0.63 0.78
11 A' 945 905 34.44 4.71 0.13 0.23
12 A' 923 884 5.42 2.75 0.50 0.67
13 A' 917 878 2.06 1.18 0.70 0.82
14 A" 908 870 7.87 0.24 0.75 0.86
15 A" 876 839 0.18 0.51 0.75 0.86
16 A" 778 745 60.52 0.05 0.75 0.86
17 A" 654 626 1.14 0.21 0.75 0.86
18 A" 611 585 14.23 0.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12825.3 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 12285.4 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/aug-cc-pVDZ
ABC
0.33046 0.32393 0.16358

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.125 0.363 0.000
C2 0.611 -0.959 0.000
C3 0.000 1.121 0.000
N4 -0.695 -0.979 0.000
O5 -1.084 0.341 0.000
H6 2.155 0.692 0.000
H7 1.148 -1.902 0.000
H8 -0.182 2.188 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41851.35682.26182.20951.08102.26482.2452
C21.41852.16781.30682.13612.26031.08453.2455
C31.35682.16782.21181.33562.19743.23301.0826
N42.26181.30682.21181.37543.30402.06113.2080
O52.20952.13611.33561.37543.25813.16352.0556
H61.08102.26032.19743.30403.25812.78242.7754
H72.26481.08453.23302.06113.16352.78244.3004
H82.24523.24551.08263.20802.05562.77544.3004

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.118 C1 C2 H7 129.110
C1 C3 O5 110.299 C1 C3 H8 133.661
C2 C1 C3 102.703 C2 C1 H6 128.965
C2 N4 O5 105.546 C3 C1 H6 128.331
C3 O5 N4 109.334 N4 C2 H7 118.772
O5 C3 H8 116.040
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.899      
2 C 0.407      
3 C 0.523      
4 N -0.187      
5 O -0.502      
6 H -0.444      
7 H -0.313      
8 H -0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.561 1.514 0.000 2.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.550 -2.671 0.000
y -2.671 -25.122 0.000
z 0.000 0.000 -30.194
Traceless
 xyz
x -0.892 -2.671 0.000
y -2.671 4.250 0.000
z 0.000 0.000 -3.357
Polar
3z2-r2-6.715
x2-y2-3.428
xy-2.671
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.029 -0.086 0.000
y -0.086 7.688 0.000
z 0.000 0.000 4.426


<r2> (average value of r2) Å2
<r2> 76.444
(<r2>)1/2 8.743