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

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-285.287002
Energy at 298.15K-285.293474
Nuclear repulsion energy223.336341
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 B3PW91/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 3292 3176 0.15      
2 A 3268 3153 0.00      
3 A 3159 3047 5.49      
4 A 3122 3012 9.66      
5 A 3051 2943 15.16      
6 A 1624 1567 31.04      
7 A 1504 1450 2.46      
8 A 1482 1429 33.95      
9 A 1454 1402 7.97      
10 A 1437 1386 27.64      
11 A 1384 1335 0.80      
12 A 1292 1246 1.59      
13 A 1157 1116 17.74      
14 A 1078 1040 9.69      
15 A 1046 1009 1.89      
16 A 1031 994 2.44      
17 A 974 940 3.36      
18 A 950 916 8.26      
19 A 912 880 19.18      
20 A 871 840 1.50      
21 A 776 748 49.93      
22 A 665 642 5.15      
23 A 662 639 0.01      
24 A 615 593 4.14      
25 A 334 322 6.82      
26 A 273 263 5.38      
27 A 130 125 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 18770.2 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 18105.7 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 B3PW91/aug-cc-pVDZ
ABC
0.30622 0.11756 0.08633

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.129 0.024 0.000
H2 2.519 0.541 0.887
H3 2.500 -1.007 -0.000
H4 2.519 0.541 -0.887
C5 -1.485 0.571 -0.000
O6 -1.374 -0.765 0.000
N7 -0.029 -1.106 -0.000
C8 0.637 0.028 0.000
C9 -0.253 1.146 -0.000
H10 -0.009 2.203 -0.000
H11 -2.496 0.966 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09871.09551.09873.65503.59072.43621.49222.63343.05274.7200
H21.09871.78431.77484.10134.20123.16152.14332.97323.15295.1107
H31.09551.78431.78434.28593.88162.53132.13163.49534.07405.3716
H41.09871.77481.78434.10134.20123.16152.14332.97323.15285.1107
C53.65504.10134.28594.10131.34052.22062.18991.35952.20031.0857
O63.59074.20123.88164.20121.34051.38732.16162.21583.26662.0632
N72.43623.16152.53133.16152.22061.38731.31552.26363.30903.2218
C81.49222.14332.13162.14332.18992.16161.31551.42902.26843.2701
C92.63342.97323.49532.97321.35952.21582.26361.42901.08422.2499
H103.05273.15294.07403.15282.20033.26663.30902.26841.08422.7772
H114.72005.11075.37165.11071.08572.06323.22183.27012.24992.7772

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 120.248 C1 C8 C9 128.687
H2 C1 H3 108.817 H2 C1 H4 107.735
H2 C1 C8 110.716 H3 C1 H4 108.816
H3 C1 C8 109.974 H4 C1 C8 110.717
C5 O6 N7 108.979 C5 C9 C8 103.473
C5 C9 H10 128.057 O6 C5 C9 110.299
O6 C5 H11 116.119 O6 N7 C8 106.185
N7 C8 C9 111.065 C8 C9 H10 128.470
C9 C5 H11 133.582
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.541      
2 H -0.001      
3 H -0.184      
4 H -0.001      
5 C 0.492      
6 O -0.563      
7 N -0.264      
8 C -0.053      
9 C 0.899      
10 H -0.493      
11 H -0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.588 2.948 0.000 3.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.546 -1.930 0.000
y -1.930 -36.657 -0.000
z 0.000 -0.000 -36.343
Traceless
 xyz
x 6.954 -1.930 0.000
y -1.930 -3.713 -0.000
z 0.000 -0.000 -3.241
Polar
3z2-r2-6.483
x2-y27.112
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 10.590 -0.218 0.000
y -0.218 8.641 0.000
z 0.000 0.000 5.936


<r2> (average value of r2) Å2
<r2> 136.928
(<r2>)1/2 11.702