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

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-285.033128
Energy at 298.15K-285.039616
HF Energy-285.033128
Nuclear repulsion energy224.062182
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 PBE1PBE/6-31G*
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 3326 3160 0.50      
2 A 3304 3139 0.08      
3 A 3187 3029 4.53      
4 A 3151 2994 10.04      
5 A 3083 2929 13.25      
6 A 1658 1575 26.42      
7 A 1533 1457 5.61      
8 A 1517 1442 17.39      
9 A 1509 1434 9.05      
10 A 1479 1405 42.76      
11 A 1431 1360 0.76      
12 A 1318 1252 1.60      
13 A 1191 1132 15.03      
14 A 1103 1048 9.44      
15 A 1076 1022 3.85      
16 A 1051 999 2.76      
17 A 995 945 10.41      
18 A 986 937 8.85      
19 A 927 881 14.98      
20 A 878 834 0.48      
21 A 794 755 42.59      
22 A 673 640 4.84      
23 A 672 638 0.25      
24 A 623 592 4.69      
25 A 337 320 6.66      
26 A 276 262 5.15      
27 A 131 124 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19102.2 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 18152.8 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 PBE1PBE/6-31G*
ABC
0.30775 0.11835 0.08687

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.123 0.024 0.000
H2 2.517 0.536 0.884
H3 2.491 -1.005 -0.000
H4 2.517 0.537 -0.884
C5 -1.480 0.568 -0.000
O6 -1.367 -0.764 0.000
N7 -0.030 -1.102 -0.000
C8 0.632 0.030 -0.000
C9 -0.255 1.146 0.000
H10 -0.009 2.197 -0.000
H11 -2.490 0.955 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09531.09241.09533.64433.57732.43001.49072.62893.04434.7059
H21.09531.77701.76804.09414.18973.15532.14252.97223.14955.1015
H31.09241.77701.77704.27163.86522.52332.12733.48754.06225.3527
H41.09531.76801.77704.09414.18983.15542.14252.97213.14925.1015
C53.64434.09414.27164.09411.33682.21222.18021.35502.19531.0811
O63.57734.18973.86524.18981.33681.37852.15062.20953.25742.0533
N72.43003.15532.52333.15542.21221.37851.31192.25923.29963.2067
C81.49072.14252.12732.14252.18022.15061.31191.42532.26013.2564
C92.62892.97223.48752.97211.35502.20952.25921.42531.07992.2435
H103.04433.14954.06223.14922.19533.25743.29962.26011.07992.7748
H114.70595.10155.35275.10151.08112.05333.20673.25642.24352.7748

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 120.102 C1 C8 C9 128.713
H2 C1 H3 108.637 H2 C1 H4 107.626
H2 C1 C8 110.965 H3 C1 H4 108.638
H3 C1 C8 109.928 H4 C1 C8 110.966
C5 O6 N7 109.109 C5 C9 C8 103.257
C5 C9 H10 128.381 O6 C5 C9 110.337
O6 C5 H11 115.850 O6 N7 C8 106.113
N7 C8 C9 111.185 C8 C9 H10 128.362
C9 C5 H11 133.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.596      
2 H 0.198      
3 H 0.214      
4 H 0.198      
5 C 0.131      
6 O -0.323      
7 N -0.206      
8 C 0.300      
9 C -0.310      
10 H 0.188      
11 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.476 2.918 0.000 2.957
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.014 -1.980 0.000
y -1.980 -35.758 0.000
z 0.000 0.000 -35.693
Traceless
 xyz
x 6.712 -1.980 0.000
y -1.980 -3.404 0.000
z 0.000 0.000 -3.308
Polar
3z2-r2-6.616
x2-y26.744
xy-1.980
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.998 -0.094 0.000
y -0.094 7.111 0.000
z 0.000 0.000 3.880


<r2> (average value of r2) Å2
<r2> 135.798
(<r2>)1/2 11.653