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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-285.123839
Energy at 298.15K-285.130173
Nuclear repulsion energy222.430432
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 PBEPBE/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 3203 3181 0.52      
2 A 3179 3157 0.16      
3 A 3072 3050 5.20      
4 A 3034 3013 9.45      
5 A 2978 2957 14.25      
6 A 1560 1549 26.09      
7 A 1450 1440 6.95      
8 A 1437 1427 21.45      
9 A 1431 1421 7.51      
10 A 1395 1386 28.43      
11 A 1355 1346 0.87      
12 A 1254 1245 1.35      
13 A 1111 1103 16.83      
14 A 1047 1040 10.23      
15 A 1023 1016 2.15      
16 A 1000 993 2.46      
17 A 948 941 1.02      
18 A 906 900 0.10      
19 A 854 848 22.35      
20 A 835 829 0.22      
21 A 754 749 44.96      
22 A 646 642 0.12      
23 A 646 641 4.72      
24 A 600 595 3.54      
25 A 326 324 6.32      
26 A 264 262 5.16      
27 A 124 123 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 18214.2 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 18088.6 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 PBEPBE/cc-pVTZ
ABC
0.30372 0.11681 0.08572

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.132 0.024 -0.000
H2 -2.527 0.540 -0.886
H3 -2.504 -1.007 -0.000
H4 -2.527 0.540 0.886
C5 1.486 0.579 -0.000
O6 1.388 -0.767 -0.000
N7 0.024 -1.114 0.000
C8 -0.639 0.030 -0.000
C9 0.250 1.148 0.000
H10 0.002 2.203 0.000
H11 2.495 0.979 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09921.09601.09923.66093.60782.43791.49362.63413.04964.7252
H21.09921.78351.77264.11024.22143.16702.14762.97773.15315.1189
H31.09601.78351.78354.29393.89922.53012.13413.49684.07185.3795
H41.09921.77261.78354.11024.22143.16682.14762.97773.15315.1189
C53.66094.11024.29394.11021.34942.23712.19481.36082.20021.0856
O63.60784.22143.89924.22141.34941.40742.17742.22703.27712.0677
N72.43793.16702.53013.16682.23711.40741.32172.27283.31663.2388
C81.49362.14762.13412.14762.19482.17741.32171.42822.26533.2748
C92.63412.97773.49682.97771.36082.22702.27281.42821.08392.2517
H103.04963.15314.07183.15312.20023.27713.31662.26531.08392.7779
H114.72525.11895.37955.11891.08562.06773.23883.27482.25172.7779

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 119.863 C1 C8 C9 128.708
H2 C1 H3 108.676 H2 C1 H4 107.480
H2 C1 C8 110.938 H3 C1 H4 108.676
H3 C1 C8 110.049 H4 C1 C8 110.937
C5 O6 N7 108.462 C5 C9 C8 103.780
C5 C9 H10 127.962 O6 C5 C9 110.518
O6 C5 H11 115.820 O6 N7 C8 105.810
N7 C8 C9 111.429 C8 C9 H10 128.258
C9 C5 H11 133.662
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.282      
2 H 0.104      
3 H 0.111      
4 H 0.104      
5 C 0.045      
6 O -0.082      
7 N -0.079      
8 C 0.102      
9 C -0.255      
10 H 0.111      
11 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.524 2.748 -0.000 2.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.741 1.768 -0.000
y 1.768 -36.479 0.000
z -0.000 0.000 -36.266
Traceless
 xyz
x 6.631 1.768 -0.000
y 1.768 -3.475 0.000
z -0.000 0.000 -3.156
Polar
3z2-r2-6.313
x2-y26.738
xy1.768
xz-0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.493 0.255 -0.000
y 0.255 8.234 0.000
z -0.000 0.000 5.205


<r2> (average value of r2) Å2
<r2> 137.666
(<r2>)1/2 11.733