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All results from a given calculation for C4H5NO (3-Methylisoxazole)

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-283.842628
Energy at 298.15K-283.849041
Nuclear repulsion energy224.791967
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 LSDA/6-31G(2df,p)
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 3226 3174 0.52      
2 A 3198 3147 0.35      
3 A 3097 3048 0.84      
4 A 3062 3013 3.13      
5 A 2990 2942 7.78      
6 A 1595 1569 28.85      
7 A 1490 1467 6.73      
8 A 1462 1439 32.69      
9 A 1405 1383 9.03      
10 A 1393 1371 19.04      
11 A 1335 1313 3.93      
12 A 1268 1248 0.16      
13 A 1157 1139 11.16      
14 A 1051 1034 12.35      
15 A 1017 1001 4.35      
16 A 1014 998 5.05      
17 A 987 971 11.45      
18 A 942 927 0.16      
19 A 907 892 12.05      
20 A 826 813 0.29      
21 A 765 753 37.99      
22 A 669 658 3.58      
23 A 665 654 0.01      
24 A 623 613 3.07      
25 A 323 318 6.86      
26 A 272 268 5.27      
27 A 135 133 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18436.6 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 18141.6 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 LSDA/6-31G(2df,p)
ABC
0.30931 0.11952 0.08763

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.108 0.020 0.000
H2 2.515 0.533 0.887
H3 2.468 -1.019 0.000
H4 2.515 0.533 -0.887
C5 -1.475 0.565 0.000
O6 -1.359 -0.762 0.000
N7 -0.033 -1.098 -0.000
C8 0.634 0.036 0.000
C9 -0.249 1.142 -0.000
H10 -0.006 2.201 -0.000
H11 -2.493 0.951 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.10251.09991.10253.62453.55392.41531.47452.61083.03714.6945
H21.10251.78861.77454.08754.17943.15242.13822.96633.15005.1030
H31.09991.78861.78854.24943.83512.50192.11613.47204.06065.3378
H41.10251.77451.78854.08754.17933.15202.13822.96603.14985.1031
C53.62454.08754.24944.08751.33202.20102.17431.35522.19921.0886
O63.55394.17943.83514.17931.33201.36762.14632.20393.25732.0545
N72.41533.15242.50193.15202.20101.36761.31532.25043.29873.2015
C81.47452.13822.11612.13822.17432.14631.31531.41542.25723.2580
C92.61082.96633.47202.96601.35522.20392.25041.41541.08632.2521
H103.03713.15004.06063.14982.19923.25733.29872.25721.08632.7840
H114.69455.10305.33785.10311.08862.05453.20153.25802.25212.7840

picture of 3-Methylisoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 N7 119.830 C1 C8 C9 129.222
H2 C1 H3 108.600 H2 C1 H4 107.178
H2 C1 C8 111.328 H3 C1 H4 108.600
H3 C1 C8 109.710 H4 C1 C8 111.327
C5 O6 N7 109.230 C5 C9 C8 103.379
C5 C9 H10 128.176 O6 C5 C9 110.198
O6 C5 H11 115.785 O6 N7 C8 106.245
N7 C8 C9 110.948 C8 C9 H10 128.444
C9 C5 H11 134.017
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.609      
2 H 0.173      
3 H 0.184      
4 H 0.173      
5 C -0.001      
6 O -0.093      
7 N -0.174      
8 C 0.346      
9 C -0.328      
10 H 0.151      
11 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.416 2.718 0.001 2.750
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.075 -1.598 -0.001
y -1.598 -35.647 -0.001
z -0.001 -0.001 -35.396
Traceless
 xyz
x 6.447 -1.598 -0.001
y -1.598 -3.412 -0.001
z -0.001 -0.001 -3.035
Polar
3z2-r2-6.070
x2-y26.572
xy-1.598
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.651 -0.221 -0.000
y -0.221 7.486 0.000
z -0.000 0.000 4.402


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000