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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-285.325947
Energy at 298.15K-285.332452
Nuclear repulsion energy223.812368
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/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 3311 3173 0.12      
2 A 3287 3150 0.00      
3 A 3178 3046 5.29      
4 A 3141 3010 9.36      
5 A 3068 2940 14.77      
6 A 1641 1573 31.98      
7 A 1519 1455 2.44      
8 A 1493 1431 36.92      
9 A 1461 1400 8.10      
10 A 1447 1386 27.23      
11 A 1392 1334 0.88      
12 A 1302 1247 1.67      
13 A 1170 1121 17.47      
14 A 1086 1040 9.74      
15 A 1053 1009 1.93      
16 A 1038 995 2.61      
17 A 982 941 7.19      
18 A 966 925 9.02      
19 A 922 884 16.11      
20 A 881 844 1.66      
21 A 782 750 50.19      
22 A 671 643 5.21      
23 A 667 639 0.00      
24 A 620 594 4.29      
25 A 336 322 6.87      
26 A 275 263 5.43      
27 A 130 125 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 18908.2 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18119.7 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/aug-cc-pVDZ
ABC
0.30745 0.11804 0.08668

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.125 0.024 0.000
H2 2.514 0.540 0.887
H3 2.495 -1.006 -0.001
H4 2.514 0.541 -0.886
C5 -1.482 0.569 -0.000
O6 -1.369 -0.764 0.000
N7 -0.030 -1.103 -0.000
C8 0.635 0.028 -0.000
C9 -0.254 1.145 -0.000
H10 -0.011 2.200 -0.000
H11 -2.492 0.963 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09711.09391.09713.64873.58252.43241.49012.63013.04954.7123
H21.09711.78221.77264.09424.19163.15602.13982.96913.14975.1024
H31.09391.78221.78224.27793.87232.52752.12803.49044.06915.3621
H41.09711.77261.78224.09404.19203.15652.13982.96863.14865.1022
C53.64874.09424.27794.09401.33722.21412.18561.35732.19741.0842
O63.58254.19163.87234.19201.33721.38132.15562.21123.26072.0596
N72.43243.15602.52753.15652.21411.38131.31242.25903.30313.2137
C81.49012.13982.12802.13982.18562.15561.31241.42752.26603.2644
C92.63012.96913.49042.96861.35732.21122.25901.42751.08272.2462
H103.04953.14974.06913.14862.19743.26073.30312.26601.08272.7733
H114.71235.10245.36215.10221.08422.05963.21373.26442.24622.7733

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 120.308 C1 C8 C9 128.689
H2 C1 H3 108.853 H2 C1 H4 107.768
H2 C1 C8 110.684 H3 C1 H4 108.854
H3 C1 C8 109.935 H4 C1 C8 110.685
C5 O6 N7 109.050 C5 C9 C8 103.380
C5 C9 H10 128.107 O6 C5 C9 110.291
O6 C5 H11 116.157 O6 N7 C8 106.276
N7 C8 C9 111.003 C8 C9 H10 128.513
C9 C5 H11 133.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.476      
2 H 0.025      
3 H -0.159      
4 H 0.024      
5 C 0.499      
6 O -0.586      
7 N -0.277      
8 C -0.025      
9 C 0.845      
10 H -0.469      
11 H -0.353      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.579 2.957 0.000 3.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.514 -1.930 0.000
y -1.930 -36.647 -0.000
z 0.000 -0.000 -36.376
Traceless
 xyz
x 6.997 -1.930 0.000
y -1.930 -3.702 -0.000
z 0.000 -0.000 -3.295
Polar
3z2-r2-6.591
x2-y27.133
xy-1.930
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.483 -0.205 0.000
y -0.205 8.571 0.000
z 0.000 0.000 5.915


<r2> (average value of r2) Å2
<r2> 136.471
(<r2>)1/2 11.682