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

using model chemistry: B3LYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-285.462334
Energy at 298.15K-285.468816
Nuclear repulsion energy223.636653
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 B3LYP/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 3272 3163 0.46      
2 A 3250 3141 0.07      
3 A 3128 3024 6.43      
4 A 3088 2985 11.82      
5 A 3039 2937 14.81      
6 A 1615 1561 29.31      
7 A 1498 1448 10.00      
8 A 1486 1436 7.16      
9 A 1479 1430 8.58      
10 A 1441 1392 42.21      
11 A 1412 1365 2.62      
12 A 1297 1254 2.78      
13 A 1150 1111 19.47      
14 A 1087 1051 9.88      
15 A 1068 1033 2.04      
16 A 1036 1002 2.54      
17 A 978 945 1.78      
18 A 932 901 0.23      
19 A 890 860 0.51      
20 A 890 860 27.67      
21 A 789 762 45.37      
22 A 670 648 0.23      
23 A 659 637 5.64      
24 A 613 593 4.31      
25 A 338 327 6.60      
26 A 274 265 4.90      
27 A 128 123 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 18753.3 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 18127.0 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 B3LYP/cc-pVTZ
ABC
0.30782 0.11767 0.08649

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.127 0.026 -0.000
H2 2.514 0.541 0.881
H3 2.502 -0.995 -0.000
H4 2.515 0.542 -0.880
C5 -1.481 0.573 -0.000
O6 -1.380 -0.762 0.000
N7 -0.023 -1.106 0.000
C8 0.635 0.025 -0.000
C9 -0.254 1.141 0.000
H10 -0.007 2.187 0.000
H11 -2.480 0.974 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09101.08761.09103.64923.59512.43061.49252.62923.03754.7039
H21.09101.77051.76054.09124.20043.15112.13902.96653.13775.0902
H31.08761.77051.77064.28043.88922.52802.12743.48674.05245.3571
H41.09101.76051.77064.09124.20063.15152.13902.96633.13725.0901
C53.64924.09124.28044.09121.33972.22352.18551.35152.18511.0768
O63.59514.20043.88924.20061.33971.39952.16332.21153.25352.0554
N72.43063.15112.52803.15152.22351.39951.30842.25863.29323.2189
C81.49252.13902.12742.13902.18552.16331.30841.42682.25583.2564
C92.62922.96653.48672.96631.35152.21152.25861.42681.07512.2324
H103.03753.13774.05243.13722.18513.25353.29322.25581.07512.7545
H114.70395.09025.35715.09011.07682.05543.21893.25642.23242.7545

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 120.268 C1 C8 C9 128.475
H2 C1 H3 108.720 H2 C1 H4 107.577
H2 C1 C8 110.822 H3 C1 H4 108.721
H3 C1 C8 110.098 H4 C1 C8 110.825
C5 O6 N7 108.509 C5 C9 C8 103.715
C5 C9 H10 128.085 O6 C5 C9 110.519
O6 C5 H11 116.130 O6 N7 C8 106.000
N7 C8 C9 111.257 C8 C9 H10 128.200
C9 C5 H11 133.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.292     -0.525
2 H 0.103     0.139
3 H 0.114     0.147
4 H 0.103     0.139
5 C 0.046     0.197
6 O -0.122     -0.091
7 N -0.068     -0.436
8 C 0.106     0.677
9 C -0.255     -0.563
10 H 0.128     0.213
11 H 0.136     0.103


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.563 2.891 0.000 2.946
CHELPG        
AIM        
ESP 0.532 2.857 -0.000 2.906


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.815 -1.937 0.000
y -1.937 -36.674 0.000
z 0.000 0.000 -36.246
Traceless
 xyz
x 6.645 -1.937 0.000
y -1.937 -3.643 0.000
z 0.000 0.000 -3.002
Polar
3z2-r2-6.004
x2-y26.859
xy-1.937
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.061 -0.168 -0.002
y -0.168 7.963 -0.002
z -0.002 -0.002 5.092


<r2> (average value of r2) Å2
<r2> 136.663
(<r2>)1/2 11.690