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All results from a given calculation for C3H3NO (Isoxazole)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-246.060613
Energy at 298.15K 
HF Energy-246.060613
Nuclear repulsion energy163.211788
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 mPW1PW91/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' 3307 3172 0.12 112.62 0.13 0.23
2 A' 3280 3146 0.06 54.42 0.59 0.74
3 A' 3260 3127 1.00 88.07 0.37 0.54
4 A' 1624 1557 10.04 1.70 0.10 0.18
5 A' 1489 1428 31.60 32.30 0.24 0.38
6 A' 1420 1363 7.34 2.24 0.17 0.29
7 A' 1263 1212 7.24 13.43 0.15 0.26
8 A' 1172 1124 19.64 1.87 0.60 0.75
9 A' 1143 1096 8.85 11.52 0.14 0.24
10 A' 1053 1010 5.41 3.06 0.61 0.76
11 A' 946 907 24.64 3.89 0.22 0.36
12 A' 931 893 3.99 4.73 0.53 0.69
13 A' 929 891 11.82 0.59 0.17 0.28
14 A" 928 891 5.34 0.85 0.75 0.86
15 A" 893 857 0.13 0.13 0.75 0.86
16 A" 793 761 59.24 0.15 0.75 0.86
17 A" 662 635 1.78 0.26 0.75 0.86
18 A" 619 594 14.38 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12856.1 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 12331.6 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 mPW1PW91/cc-pVTZ
ABC
0.33217 0.32555 0.16441

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.121 0.364 0.000
C2 0.610 -0.957 0.000
C3 0.000 1.118 0.000
N4 -0.691 -0.978 0.000
O5 -1.083 0.340 0.000
H6 2.144 0.690 0.000
H7 1.148 -1.891 0.000
H8 -0.179 2.179 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 N4 O5 H6 H7 H8
C11.41551.35112.25512.20431.07432.25492.2328
C21.41552.16211.30182.13312.25081.07813.2334
C31.35112.16212.20691.33302.18663.22021.0765
N42.25511.30182.20691.37573.29032.05333.1987
O52.20432.13311.33301.37573.24653.15552.0491
H61.07432.25082.18663.29033.24652.76722.7591
H72.25491.07813.22022.05333.15552.76724.2809
H82.23283.23341.07653.19872.04912.75914.2809

picture of Isoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 112.106 C1 C2 H7 128.938
C1 C3 O5 110.420 C1 C3 H8 133.473
C2 C1 C3 102.769 C2 C1 H6 128.865
C2 N4 O5 105.592 C3 C1 H6 128.365
C3 O5 N4 109.113 N4 C2 H7 118.956
O5 C3 H8 116.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.222      
2 C -0.025      
3 C 0.061      
4 N -0.083      
5 O -0.091      
6 H 0.120      
7 H 0.114      
8 H 0.126      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.471 1.503 0.000 2.892
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.190 -2.592 0.000
y -2.592 -24.866 0.000
z 0.000 0.000 -29.859
Traceless
 xyz
x -0.828 -2.592 0.000
y -2.592 4.159 0.000
z 0.000 0.000 -3.331
Polar
3z2-r2-6.661
x2-y2-3.324
xy-2.592
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.482 -0.194 0.000
y -0.194 7.119 0.000
z 0.000 0.000 3.600


<r2> (average value of r2) Å2
<r2> 75.922
(<r2>)1/2 8.713